diff --git a/brewman/alembic/versions/b13dbf97bd21_recipe_yield.py b/brewman/alembic/versions/b13dbf97bd21_recipe_yield.py
new file mode 100644
index 00000000..c923281b
--- /dev/null
+++ b/brewman/alembic/versions/b13dbf97bd21_recipe_yield.py
@@ -0,0 +1,41 @@
+"""recipe yield
+
+Revision ID: b13dbf97bd21
+Revises: 0e6c5953a63f
+Create Date: 2021-11-08 11:51:07.061978
+
+"""
+import sqlalchemy as sa
+
+from alembic import op
+
+
+# revision identifiers, used by Alembic.
+revision = "b13dbf97bd21"
+down_revision = "0e6c5953a63f"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column("recipes", "quantity", new_column_name="recipe_yield")
+    op.alter_column(
+        "recipe_items",
+        "quantity",
+        existing_type=sa.INTEGER(),
+        type_=sa.Numeric(precision=15, scale=2),
+        existing_nullable=False,
+    )
+    op.alter_column(
+        "recipe_items",
+        "price",
+        existing_type=sa.INTEGER(),
+        type_=sa.Numeric(precision=15, scale=5),
+        existing_nullable=False,
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    pass
diff --git a/brewman/brewman/models/batch.py b/brewman/brewman/models/batch.py
index 0a5bab4c..947b81ec 100644
--- a/brewman/brewman/models/batch.py
+++ b/brewman/brewman/models/batch.py
@@ -58,23 +58,6 @@ class Batch(Base):
     def amount(self):
         return self.quantity_remaining * self.rate * (1 + self.tax) * (1 - self.discount)
 
-    @classmethod
-    def list(cls, q: str, include_nil: bool, date_: Optional[date], db: Session):
-        query = (
-            select(cls)
-            .join(cls.sku)
-            .join(StockKeepingUnit.product)
-            .options(contains_eager(cls.sku).contains_eager(StockKeepingUnit.product))
-        )
-        if not include_nil:
-            query = query.where(cls.quantity_remaining > 0)
-        if date_ is not None:
-            query = query.where(cls.name <= date_)
-        if q is not None:
-            for item in q.split():
-                query = query.where(Product.name.ilike(f"%{item}%"))
-        return db.execute(query.order_by(Product.name).order_by(cls.name)).scalars().all()
-
     @classmethod
     def suspense(cls):
         return uuid.UUID("a955790e-93cf-493c-a816-c7d92b127383")
diff --git a/brewman/brewman/models/recipe.py b/brewman/brewman/models/recipe.py
index 9cd82135..7eef0f15 100644
--- a/brewman/brewman/models/recipe.py
+++ b/brewman/brewman/models/recipe.py
@@ -1,33 +1,44 @@
+import datetime
 import uuid
 
+from decimal import Decimal
+from typing import TYPE_CHECKING, List
+
 from sqlalchemy import Column, Date, ForeignKey, Numeric, Unicode
 from sqlalchemy.dialects.postgresql import UUID
-from sqlalchemy.orm import relationship
+from sqlalchemy.orm import Mapped, relationship
 
 from .meta import Base
 
 
+if TYPE_CHECKING:
+    # if the target of the relationship is in another module
+    # that cannot normally be imported at runtime
+    from .recipe_item import RecipeItem
+    from .stock_keeping_unit import StockKeepingUnit
+
+
 class Recipe(Base):
     __tablename__ = "recipes"
 
-    id = Column("id", UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
-    sku_id = Column("sku_id", UUID(as_uuid=True), ForeignKey("stock_keeping_units.id"), nullable=False)
+    id: uuid.UUID = Column("id", UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    sku_id: uuid.UUID = Column("sku_id", UUID(as_uuid=True), ForeignKey("stock_keeping_units.id"), nullable=False)
 
-    quantity = Column("quantity", Numeric(precision=15, scale=2), nullable=False)
-    cost_price = Column("cost_price", Numeric(precision=15, scale=2), nullable=False)
-    sale_price = Column("sale_price", Numeric(precision=15, scale=2), nullable=False)
-    notes = Column("notes", Unicode(255))
+    recipe_yield: Decimal = Column("recipe_yield", Numeric(precision=15, scale=2), nullable=False)
+    cost_price: Decimal = Column("cost_price", Numeric(precision=15, scale=2), nullable=False)
+    sale_price: Decimal = Column("sale_price", Numeric(precision=15, scale=2), nullable=False)
+    notes: str = Column("notes", Unicode(255))
 
-    valid_from = Column("valid_from", Date, nullable=True)
-    valid_till = Column("valid_till", Date, nullable=True)
+    valid_from: datetime.date = Column("valid_from", Date, nullable=True)
+    valid_till: datetime.date = Column("valid_till", Date, nullable=True)
 
-    items = relationship("RecipeItem", back_populates="recipe")
-    sku = relationship("StockKeepingUnit", back_populates="recipes")
+    items: List["RecipeItem"] = relationship("RecipeItem", back_populates="recipe")
+    sku: Mapped["StockKeepingUnit"] = relationship("StockKeepingUnit", back_populates="recipes")
 
     def __init__(
         self,
         sku_id=None,
-        quantity=None,
+        recipe_yield=None,
         cost_price=None,
         sale_price=None,
         valid_from=None,
@@ -36,7 +47,7 @@ class Recipe(Base):
         id_=None,
     ):
         self.sku_id = sku_id
-        self.quantity = quantity
+        self.recipe_yield = recipe_yield
         self.cost_price = cost_price
         self.sale_price = sale_price
         self.valid_from = valid_from
diff --git a/brewman/brewman/models/recipe_item.py b/brewman/brewman/models/recipe_item.py
index 35ca1e3a..5ae65ddf 100644
--- a/brewman/brewman/models/recipe_item.py
+++ b/brewman/brewman/models/recipe_item.py
@@ -1,24 +1,33 @@
 import uuid
 
-from sqlalchemy import Column, ForeignKey, Integer, UniqueConstraint
+from typing import TYPE_CHECKING
+
+from sqlalchemy import Column, ForeignKey, Integer, Numeric, UniqueConstraint
 from sqlalchemy.dialects.postgresql import UUID
-from sqlalchemy.orm import relationship
+from sqlalchemy.orm import Mapped, relationship
 
 from .meta import Base
 
 
+if TYPE_CHECKING:
+    # if the target of the relationship is in another module
+    # that cannot normally be imported at runtime
+    from .product import Product
+    from .recipe import Recipe
+
+
 class RecipeItem(Base):
     __tablename__ = "recipe_items"
     __table_args__ = (UniqueConstraint("recipe_id", "product_id"),)
 
-    id = Column("recipe_item_id", UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
-    recipe_id = Column("recipe_id", UUID(as_uuid=True), ForeignKey("recipes.id"), nullable=False)
-    product_id = Column("product_id", UUID(as_uuid=True), ForeignKey("products.id"), nullable=False)
-    quantity = Column("quantity", Integer, nullable=False)
-    price = Column("price", Integer, nullable=False)
+    id: uuid.UUID = Column("recipe_item_id", UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    recipe_id: uuid.UUID = Column("recipe_id", UUID(as_uuid=True), ForeignKey("recipes.id"), nullable=False)
+    product_id: uuid.UUID = Column("product_id", UUID(as_uuid=True), ForeignKey("products.id"), nullable=False)
+    quantity: int = Column("quantity", Numeric(precision=15, scale=2), nullable=False)
+    price: int = Column("price", Numeric(precision=15, scale=5), nullable=False)
 
-    recipe = relationship("Recipe", back_populates="items")
-    product = relationship("Product")
+    recipe: Mapped["Recipe"] = relationship("Recipe", back_populates="items")
+    product: Mapped["Product"] = relationship("Product")
 
     def __init__(self, recipe_id=None, product_id=None, quantity=None, price=None, recipe=None, id_=None):
         self.recipe_id = recipe_id
diff --git a/brewman/brewman/models/voucher.py b/brewman/brewman/models/voucher.py
index 41437e50..4534814a 100644
--- a/brewman/brewman/models/voucher.py
+++ b/brewman/brewman/models/voucher.py
@@ -40,11 +40,15 @@ class Voucher(Base):
     user: Mapped["User"] = relationship("User", primaryjoin="User.id==Voucher.user_id")
     poster: Mapped["User"] = relationship("User", primaryjoin="User.id==Voucher.poster_id")
 
-    journals: List["Journal"] = relationship("Journal", back_populates="voucher")
+    journals: List["Journal"] = relationship("Journal", cascade="delete, delete-orphan", back_populates="voucher")
 
-    inventories: List["Inventory"] = relationship("Inventory", back_populates="voucher")
-    employee_benefits: List["EmployeeBenefit"] = relationship("EmployeeBenefit", backref="voucher")
-    incentives: List["Incentive"] = relationship("Incentive", backref="voucher")
+    inventories: List["Inventory"] = relationship(
+        "Inventory", cascade="delete, delete-orphan", back_populates="voucher"
+    )
+    employee_benefits: List["EmployeeBenefit"] = relationship(
+        "EmployeeBenefit", cascade="delete, delete-orphan", backref="voucher"
+    )
+    incentives: List["Incentive"] = relationship("Incentive", cascade="delete, delete-orphan", backref="voucher")
 
     def __init__(
         self,
diff --git a/brewman/brewman/routers/batch.py b/brewman/brewman/routers/batch.py
index 9ea043ac..f7c05405 100644
--- a/brewman/brewman/routers/batch.py
+++ b/brewman/brewman/routers/batch.py
@@ -1,10 +1,14 @@
 import datetime
 
 from fastapi import APIRouter, Depends
+from sqlalchemy import select
+from sqlalchemy.orm import contains_eager
 
 from ..core.security import get_current_active_user as get_user
 from ..db.session import SessionFuture
 from ..models.batch import Batch
+from ..models.product import Product
+from ..models.stock_keeping_unit import StockKeepingUnit
 from ..schemas.user import UserToken
 
 
@@ -14,13 +18,25 @@ router = APIRouter()
 @router.get("")
 def batch_term(
     q: str,
-    d: str = None,
+    d: str,
     current_user: UserToken = Depends(get_user),
 ):
-    date_ = None if not d else datetime.datetime.strptime(d, "%d-%b-%Y")
+    date_ = datetime.datetime.strptime(d, "%d-%b-%Y")
     list_ = []
     with SessionFuture() as db:
-        for item in Batch.list(q, include_nil=False, date_=date_, db=db):
+        query = (
+            select(Batch)
+            .join(Batch.sku)
+            .join(StockKeepingUnit.product)
+            .where(Batch.quantity_remaining > 0, Batch.name <= date_)
+            .options(contains_eager(Batch.sku).contains_eager(StockKeepingUnit.product))
+        )
+        if q is not None:
+            for item in q.split():
+                query = query.where(Product.name.ilike(f"%{item}%"))
+        result = db.execute(query.order_by(Product.name).order_by(Batch.name)).scalars().all()
+
+        for item in result:
             text = (
                 f"{item.sku.product.name} ({item.sku.units}) {item.quantity_remaining:.2f}@"
                 f"{item.rate:.2f} from {item.name.strftime('%d-%b-%Y')}"
diff --git a/brewman/brewman/routers/employee_benefit.py b/brewman/brewman/routers/employee_benefit.py
index 21bd81b6..831eee2c 100644
--- a/brewman/brewman/routers/employee_benefit.py
+++ b/brewman/brewman/routers/employee_benefit.py
@@ -22,6 +22,7 @@ from ..models.journal import Journal
 from ..models.validations import check_journals_are_valid
 from ..models.voucher import Voucher
 from ..models.voucher_type import VoucherType
+from ..schemas.blank_voucher_info import BlankVoucherInfo
 from ..schemas.employee_benefit import EmployeeBenefit as EmployeeBenefitSchema
 from ..schemas.user import UserToken
 from . import get_lock_info
@@ -255,7 +256,7 @@ def show_blank(
     request: Request,
     user: UserToken = Security(get_user, scopes=["employee-benefit"]),
 ):
-    additional_info = {"date": get_date(request.session), "type": VoucherType.EMPLOYEE_BENEFIT}
+    additional_info = BlankVoucherInfo(date=get_date(request.session), type=VoucherType.EMPLOYEE_BENEFIT)
     with SessionFuture() as db:
         return blank_voucher(additional_info, db)
 
diff --git a/brewman/brewman/routers/incentive.py b/brewman/brewman/routers/incentive.py
index e6361d57..62e4360b 100644
--- a/brewman/brewman/routers/incentive.py
+++ b/brewman/brewman/routers/incentive.py
@@ -25,6 +25,7 @@ from ..models.journal import Journal
 from ..models.validations import check_journals_are_valid
 from ..models.voucher import Voucher
 from ..models.voucher_type import VoucherType
+from ..schemas.blank_voucher_info import BlankVoucherInfo
 from ..schemas.incentive import Incentive as IncentiveSchema
 from ..schemas.user import UserToken
 from . import get_lock_info
@@ -208,7 +209,7 @@ def show_blank(
     d: str = None,
     user: UserToken = Security(get_user, scopes=["incentive"]),
 ):
-    additional_info = {"date": d or get_date(request.session), "type": VoucherType.INCENTIVE}
+    additional_info = BlankVoucherInfo(date=d or get_date(request.session), type=VoucherType.INCENTIVE)
     with SessionFuture() as db:
         return blank_voucher(additional_info, db)
 
diff --git a/brewman/brewman/routers/issue.py b/brewman/brewman/routers/issue.py
index 4e2c59b0..d0a084d3 100644
--- a/brewman/brewman/routers/issue.py
+++ b/brewman/brewman/routers/issue.py
@@ -25,6 +25,8 @@ from ..models.stock_keeping_unit import StockKeepingUnit
 from ..models.validations import check_inventories_are_valid, check_journals_are_valid
 from ..models.voucher import Voucher
 from ..models.voucher_type import VoucherType
+from ..schemas.blank_voucher_info import BlankVoucherInfo
+from ..schemas.cost_centre import CostCentreLink
 from ..schemas.inventory import Inventory as InventorySchema
 from ..schemas.user import UserToken
 from . import get_lock_info
@@ -381,15 +383,15 @@ def get_id(
 def show_blank(
     request: Request,
     date: str = None,
-    source: str = None,
-    destination: str = None,
+    source: uuid.UUID = None,
+    destination: uuid.UUID = None,
     user: UserToken = Security(get_user, scopes=["issue"]),
 ) -> output.Voucher:
     date_ = date or get_date(request.session)
-    additional_info = {"date": date_, "type": VoucherType.ISSUE}
+    additional_info = BlankVoucherInfo(date=date_, type=VoucherType.ISSUE)
     if source:
-        additional_info["source"] = source
+        additional_info.source = CostCentreLink(id=source, name="")
     if destination:
-        additional_info["destination"] = destination
+        additional_info.destination = CostCentreLink(id=destination, name="")
     with SessionFuture() as db:
         return blank_voucher(additional_info, db)
diff --git a/brewman/brewman/routers/journal.py b/brewman/brewman/routers/journal.py
index 414b7f23..9ec0374a 100644
--- a/brewman/brewman/routers/journal.py
+++ b/brewman/brewman/routers/journal.py
@@ -19,6 +19,8 @@ from ..models.journal import Journal
 from ..models.validations import check_journals_are_valid
 from ..models.voucher import Voucher
 from ..models.voucher_type import VoucherType
+from ..schemas.account import AccountLink
+from ..schemas.blank_voucher_info import BlankVoucherInfo
 from ..schemas.user import UserToken
 from . import get_lock_info
 from .db_image import save_files, update_files
@@ -188,7 +190,7 @@ def get_id(
 @router.get("", response_model=output.Voucher)
 def show_blank(
     request: Request,
-    a: str = None,
+    a: uuid.UUID = None,
     user: UserToken = Security(get_user, scopes=["journal"]),
 ) -> output.Voucher:
     if request.scope.get("path") == "/api/payment":
@@ -198,8 +200,8 @@ def show_blank(
     else:
         type_ = VoucherType.JOURNAL
 
-    additional_info = {"date": get_date(request.session), "type": type_}
+    additional_info = BlankVoucherInfo(date=get_date(request.session), type=type_)
     if a:
-        additional_info["account"] = a
+        additional_info.ac = AccountLink(id=a)
     with SessionFuture() as db:
         return blank_voucher(additional_info, db)
diff --git a/brewman/brewman/routers/product.py b/brewman/brewman/routers/product.py
index 2f855c0e..9eef1cf9 100644
--- a/brewman/brewman/routers/product.py
+++ b/brewman/brewman/routers/product.py
@@ -216,8 +216,6 @@ async def show_term_sku(
                         fractionUnits=item.fraction_units,
                         costPrice=sku.cost_price if rc_price is None else rc_price,
                         salePrice=sku.sale_price,
-                        fraction=sku.fraction,
-                        productYield=sku.product_yield,
                         isRateContracted=False if rc_price is None else True,
                     )
                 )
@@ -252,8 +250,6 @@ async def show_term_product(
                     fractionUnits=item.fraction_units,
                     costPrice=0,
                     salePrice=0,
-                    fraction=1,
-                    productYield=1,
                     isRateContracted=False,
                 )
             )
diff --git a/brewman/brewman/routers/purchase.py b/brewman/brewman/routers/purchase.py
index f6ab2bbe..5283c9eb 100644
--- a/brewman/brewman/routers/purchase.py
+++ b/brewman/brewman/routers/purchase.py
@@ -26,6 +26,7 @@ from ..models.stock_keeping_unit import StockKeepingUnit
 from ..models.validations import check_inventories_are_valid, check_journals_are_valid
 from ..models.voucher import Voucher
 from ..models.voucher_type import VoucherType
+from ..schemas.blank_voucher_info import BlankVoucherInfo
 from ..schemas.inventory import Inventory as InventorySchema
 from ..schemas.user import UserToken
 from . import get_lock_info
@@ -363,7 +364,7 @@ def show_blank(
     request: Request,
     user: UserToken = Security(get_user, scopes=["purchase"]),
 ) -> output.Voucher:
-    additional_info = {"date": get_date(request.session), "type": VoucherType.PURCHASE}
+    additional_info = BlankVoucherInfo(date=get_date(request.session), type=VoucherType.PURCHASE)
     with SessionFuture() as db:
         return blank_voucher(additional_info, db)
 
diff --git a/brewman/brewman/routers/purchase_return.py b/brewman/brewman/routers/purchase_return.py
index 25070ac0..6ed808b7 100644
--- a/brewman/brewman/routers/purchase_return.py
+++ b/brewman/brewman/routers/purchase_return.py
@@ -23,6 +23,7 @@ from ..models.stock_keeping_unit import StockKeepingUnit
 from ..models.validations import check_inventories_are_valid, check_journals_are_valid
 from ..models.voucher import Voucher
 from ..models.voucher_type import VoucherType
+from ..schemas.blank_voucher_info import BlankVoucherInfo
 from ..schemas.inventory import Inventory as InventorySchema
 from ..schemas.user import UserToken
 from . import get_lock_info
@@ -329,6 +330,6 @@ def show_blank(
     request: Request,
     user: UserToken = Security(get_user, scopes=["purchase-return"]),
 ) -> output.Voucher:
-    additional_info = {"date": get_date(request.session), "type": VoucherType.PURCHASE_RETURN}
+    additional_info = BlankVoucherInfo(date=get_date(request.session), type=VoucherType.PURCHASE_RETURN)
     with SessionFuture() as db:
         return blank_voucher(additional_info, db)
diff --git a/brewman/brewman/routers/voucher.py b/brewman/brewman/routers/voucher.py
index 557a1b99..580182e7 100644
--- a/brewman/brewman/routers/voucher.py
+++ b/brewman/brewman/routers/voucher.py
@@ -1,13 +1,13 @@
 import uuid
 
-from datetime import datetime
+from datetime import date, datetime
 from decimal import Decimal
 from typing import List, Optional, Tuple
 
 import brewman.schemas.voucher as output
 
 from fastapi import APIRouter, HTTPException, Security, status
-from sqlalchemy import and_, distinct, func, or_, select
+from sqlalchemy import and_, delete, distinct, func, or_, select
 from sqlalchemy.exc import SQLAlchemyError
 from sqlalchemy.orm import Session
 
@@ -21,11 +21,14 @@ from ..models.attendance_type import AttendanceType
 from ..models.cost_centre import CostCentre
 from ..models.db_image import DbImage
 from ..models.employee import Employee
+from ..models.employee_benefit import EmployeeBenefit
+from ..models.incentive import Incentive
 from ..models.inventory import Inventory
 from ..models.journal import Journal
 from ..models.voucher import Voucher
 from ..models.voucher_type import VoucherType
 from ..routers import get_lock_info
+from ..schemas.blank_voucher_info import BlankVoucherInfo
 from ..schemas.user import UserToken
 
 
@@ -163,11 +166,19 @@ def delete_voucher(
         for image in images:
             db.delete(image)
         db.commit()
-        json_voucher.type_ = VoucherType[json_voucher.type_.replace(" ", "_").upper()]
-        return blank_voucher(info=json_voucher, db=db)
+
+        return blank_voucher(
+            info=BlankVoucherInfo(
+                date=json_voucher.date_,
+                type=VoucherType[json_voucher.type_],
+                source=json_voucher.source,
+                destination=json_voucher.destination,
+            ),
+            db=db,
+        )
 
 
-def voucher_info(voucher, db: Session) -> output.Voucher:
+def voucher_info(voucher: Voucher, db: Session) -> output.Voucher:
     json_voucher = output.Voucher(
         id=voucher.id,
         date=voucher.date,
@@ -200,75 +211,77 @@ def voucher_info(voucher, db: Session) -> output.Voucher:
         item = [j for j in voucher.journals if j.debit == 1][0]
         json_voucher.vendor = output.AccountLink(id=item.account.id, name=item.account.name)
     else:
-        for item in voucher.journals:
+        for journal in voucher.journals:
             json_voucher.journals.append(
                 output.Journal(
-                    id=item.id,
-                    debit=item.debit,
-                    amount=item.amount,
-                    account=output.AccountLink(id=item.account.id, name=item.account.name),
-                    costCentre=output.CostCentreLink(id=item.cost_centre_id),
+                    id=journal.id,
+                    debit=journal.debit,
+                    amount=journal.amount,
+                    account=output.AccountLink(id=journal.account.id, name=journal.account.name),
+                    costCentre=output.CostCentreLink(id=journal.cost_centre_id),
                 )
             )
-    for item in voucher.employee_benefits:
+    for benefit in voucher.employee_benefits:
         json_voucher.employee_benefits.append(
             output.EmployeeBenefit(
-                grossSalary=item.gross_salary,
-                daysWorked=item.days_worked,
-                esiEmployee=item.esi_ee,
-                pfEmployee=item.pf_ee,
-                esiEmployer=item.esi_er,
-                pfEmployer=item.pf_er,
+                grossSalary=benefit.gross_salary,
+                daysWorked=benefit.days_worked,
+                esiEmployee=benefit.esi_ee,
+                pfEmployee=benefit.pf_ee,
+                esiEmployer=benefit.esi_er,
+                pfEmployer=benefit.pf_er,
                 employee=output.EmployeeLink(
-                    id=item.journal.account.id,
-                    name=item.journal.account.name,
-                    designation=item.journal.account.designation,
+                    id=benefit.journal.account.id,
+                    name=benefit.journal.account.name,
+                    designation=benefit.journal.account.designation,
                     costCentre=output.CostCentreLink(
-                        id=item.journal.account.cost_centre.id,
-                        name=item.journal.account.cost_centre.name,
+                        id=benefit.journal.account.cost_centre.id,
+                        name=benefit.journal.account.cost_centre.name,
                     ),
                 ),
             )
         )
-    for item in voucher.incentives:
-        employee: Employee = db.execute(select(Employee).where(Employee.id == item.journal.account_id)).scalar_one()
+    for incentive in voucher.incentives:
+        employee: Employee = db.execute(
+            select(Employee).where(Employee.id == incentive.journal.account_id)
+        ).scalar_one()
         json_voucher.incentives.append(
             output.Incentive(
-                employeeId=item.journal.account_id,
-                name=item.journal.account.name,
+                employeeId=incentive.journal.account_id,
+                name=incentive.journal.account.name,
                 designation=employee.designation,
-                department=item.journal.account.cost_centre.name,
-                daysWorked=item.days_worked,
-                points=item.points,
+                department=incentive.journal.account.cost_centre.name,
+                daysWorked=incentive.days_worked,
+                points=incentive.points,
             )
         )
     if len(json_voucher.incentives) > 0:
         json_voucher.incentive = next(x.amount for x in voucher.journals if x.account_id == Account.incentive_id())
-    for item in voucher.inventories:
+    for inventory in voucher.inventories:
         text = (
-            f"{item.batch.sku.product.name} ({item.batch.sku.units}) {item.batch.quantity_remaining:.2f}@"
-            f"{item.batch.rate:.2f} from {item.batch.name.strftime('%d-%b-%Y')}"
+            f"{inventory.batch.sku.product.name} ({inventory.batch.sku.units}) {inventory.batch.quantity_remaining:.2f}@"
+            f"{inventory.batch.rate:.2f} from {inventory.batch.name.strftime('%d-%b-%Y')}"
         )
         json_voucher.inventories.append(
             output.Inventory(
-                id=item.id,
-                quantity=item.quantity,
-                rate=item.rate,
-                tax=item.tax,
-                discount=item.discount,
-                amount=item.amount,
+                id=inventory.id,
+                quantity=inventory.quantity,
+                rate=inventory.rate,
+                tax=inventory.tax,
+                discount=inventory.discount,
+                amount=inventory.amount,
                 batch=output.Batch(
-                    id=item.batch.id,
+                    id=inventory.batch.id,
                     name=text,
-                    quantityRemaining=item.batch.quantity_remaining,
-                    tax=item.batch.tax,
-                    discount=item.batch.discount,
-                    rate=item.batch.rate,
+                    quantityRemaining=inventory.batch.quantity_remaining,
+                    tax=inventory.batch.tax,
+                    discount=inventory.batch.discount,
+                    rate=inventory.batch.rate,
                     sku=output.ProductLink(
-                        id=item.batch.sku.id,
-                        name=f"{item.batch.sku.product.name} ({item.batch.sku.units})"
-                        if item.batch.sku.units
-                        else item.batch.sku.product.name,
+                        id=inventory.batch.sku.id,
+                        name=f"{inventory.batch.sku.product.name} ({inventory.batch.sku.units})"
+                        if inventory.batch.sku.units
+                        else inventory.batch.sku.product.name,
                     ),
                 ),
             )
@@ -285,21 +298,10 @@ def voucher_info(voucher, db: Session) -> output.Voucher:
     return json_voucher
 
 
-def blank_voucher(info, db: Session) -> output.Voucher:
-    if "type" not in info:
-        raise HTTPException(
-            status_code=status.HTTP_404_NOT_FOUND,
-            detail="Voucher Type is null",
-        )
-    type_ = info["type"]
-    if "date" not in info:
-        raise HTTPException(
-            status_code=status.HTTP_404_NOT_FOUND,
-            detail="Date cannot be null",
-        )
+def blank_voucher(info: BlankVoucherInfo, db: Session) -> output.Voucher:
     json_voucher = output.Voucher(
-        type=type_.name,
-        date=info["date"],
+        type=info.type_.name,
+        date=info.date_,
         isStarred=False,
         posted=False,
         narration="",
@@ -309,65 +311,56 @@ def blank_voucher(info, db: Session) -> output.Voucher:
         employeeBenefits=[],
         files=[],
     )
-    if type_ == VoucherType.JOURNAL:
+    if info.type_ == VoucherType.JOURNAL:
         pass
-    elif type_ == VoucherType.PAYMENT:
+    elif info.type_ == VoucherType.PAYMENT:
         account = None
-        if info and "account" in info and info["account"]:
-            account = (
-                db.execute(select(AccountBase).where(AccountBase.id == uuid.UUID(info["account"])))
-                .scalars()
-                .one_or_none()
-            )
+        if info.account is not None:
+            account = db.execute(select(AccountBase).where(AccountBase.id == info.account.id_)).scalars().one_or_none()
         if account is not None:
             j_account = output.AccountLink(id=account.id, name=account.name)
         else:
             j_account = output.AccountLink(id=AccountBase.cash_in_hand()["id"], name=AccountBase.cash_in_hand()["name"])
         json_voucher.journals.append(output.Journal(account=j_account, amount=0, debit=-1))
-    elif type_ == VoucherType.RECEIPT:
+    elif info.type_ == VoucherType.RECEIPT:
         account = None
-        if info and "account" in info and info["account"]:
-            account = (
-                db.execute(select(AccountBase).where(AccountBase.id == uuid.UUID(info["account"])))
-                .scalars()
-                .one_or_none()
-            )
+        if info.account is not None:
+            account = db.execute(select(AccountBase).where(AccountBase.id == info.account.id_)).scalars().one_or_none()
         if account is not None:
             j_account = output.AccountLink(id=account.id, name=account.name)
         else:
             j_account = output.AccountLink(id=AccountBase.cash_in_hand()["id"], name=AccountBase.cash_in_hand()["name"])
         json_voucher.journals.append(output.Journal(account=j_account, amount=0, debit=1))
-    elif type_ == VoucherType.PURCHASE:
+    elif info.type_ == VoucherType.PURCHASE:
         json_voucher.vendor = output.AccountLink(
             id=AccountBase.local_purchase()["id"], name=AccountBase.local_purchase()["name"]
         )
-    elif type_ == VoucherType.PURCHASE_RETURN:
+    elif info.type_ == VoucherType.PURCHASE_RETURN:
         json_voucher.vendor = output.AccountLink(
             id=AccountBase.local_purchase()["id"], name=AccountBase.local_purchase()["name"]
         )
-    elif type_ == VoucherType.ISSUE:
-        if "source" in info:
-            json_voucher.source = output.CostCentreLink(id=info["source"])
+    elif info.type_ == VoucherType.ISSUE:
+        if info.source is not None:
+            json_voucher.source = output.CostCentreLink(id=info.source.id_)
         else:
             json_voucher.source = output.CostCentreLink(id=CostCentre.cost_centre_purchase())
-        if "destination" in info:
-            json_voucher.destination = output.CostCentreLink(id=info["destination"])
+        if info.destination is not None:
+            json_voucher.destination = output.CostCentreLink(id=info.destination.id_)
         else:
             json_voucher.destination = output.CostCentreLink(id=CostCentre.cost_centre_kitchen())
-    elif type_ == VoucherType.EMPLOYEE_BENEFIT:
+    elif info.type_ == VoucherType.EMPLOYEE_BENEFIT:
         pass
-    elif type_ == VoucherType.INCENTIVE:
-        json_voucher.incentives, json_voucher.incentive = incentive_employees(info["date"], db)
+    elif info.type_ == VoucherType.INCENTIVE:
+        json_voucher.incentives, json_voucher.incentive = incentive_employees(info.date_, db)
     else:
         raise HTTPException(
             status_code=status.HTTP_404_NOT_FOUND,
-            detail=f'Voucher of type "{type_}" does not exist.',
+            detail=f'Voucher of type "{info.type_.name}" does not exist.',
         )
     return json_voucher
 
 
-def incentive_employees(date_, db: Session) -> Tuple[List[output.Incentive], Decimal]:
-    date_ = datetime.strptime(date_, "%d-%b-%Y")
+def incentive_employees(date_: date, db: Session) -> Tuple[List[output.Incentive], Decimal]:
     start_date = get_first_day(date_)
     finish_date = date_
     details: List[output.Incentive] = []
@@ -427,7 +420,7 @@ def incentive_employees(date_, db: Session) -> Tuple[List[output.Incentive], Dec
     return details, amount
 
 
-def check_voucher_edit_allowed(voucher: Voucher, user: UserToken):
+def check_voucher_edit_allowed(voucher: Voucher, user: UserToken) -> None:
     if voucher.posted and "edit-posted-vouchers" not in user.permissions:
         raise HTTPException(
             status_code=status.HTTP_403_FORBIDDEN,
diff --git a/brewman/brewman/schemas/blank_voucher_info.py b/brewman/brewman/schemas/blank_voucher_info.py
new file mode 100644
index 00000000..e1f552cd
--- /dev/null
+++ b/brewman/brewman/schemas/blank_voucher_info.py
@@ -0,0 +1,27 @@
+from datetime import date, datetime
+from typing import Optional
+
+from pydantic import BaseModel, validator
+
+from ..models.voucher_type import VoucherType
+from . import to_camel
+from .account import AccountLink
+from .cost_centre import CostCentreLink
+
+
+class BlankVoucherInfo(BaseModel):
+    type_: VoucherType
+    date_: date
+    account: Optional[AccountLink]
+    source: Optional[CostCentreLink]
+    destination: Optional[CostCentreLink]
+
+    class Config:
+        alias_generator = to_camel
+        json_encoders = {date: lambda v: v.strftime("%d-%b-%Y")}
+
+    @validator("date_", pre=True)
+    def parse_date(cls, value):
+        if isinstance(value, date):
+            return value
+        return datetime.strptime(value, "%d-%b-%Y").date()
diff --git a/brewman/brewman/schemas/product_sku.py b/brewman/brewman/schemas/product_sku.py
index 45a09588..b6255470 100644
--- a/brewman/brewman/schemas/product_sku.py
+++ b/brewman/brewman/schemas/product_sku.py
@@ -12,8 +12,6 @@ class ProductSku(BaseModel):
     fraction_units: str
     cost_price: Decimal
     sale_price: Decimal
-    fraction: Decimal
-    product_yield: Decimal
     is_rate_contracted: bool
 
     class Config:
diff --git a/brewman/brewman/schemas/recipe.py b/brewman/brewman/schemas/recipe.py
index 17f0cc4c..a9d90555 100644
--- a/brewman/brewman/schemas/recipe.py
+++ b/brewman/brewman/schemas/recipe.py
@@ -12,9 +12,9 @@ from .recipe_item import RecipeItem
 
 
 class RecipeIn(BaseModel):
-    product: ProductLink
+    sku: ProductLink
 
-    quantity: Decimal
+    recipe_yield: Decimal
     cost_price: Decimal
     sale_price: Decimal
     notes: str
@@ -56,7 +56,7 @@ class Recipe(RecipeIn):
 
 
 class RecipeBlank(RecipeIn):
-    product: Optional[ProductLink]  # type: ignore[assignment]
+    sku: Optional[ProductLink]  # type: ignore[assignment]
 
     class Config:
         anystr_strip_whitespace = True
diff --git a/brewman/brewman/schemas/recipe_item.py b/brewman/brewman/schemas/recipe_item.py
index a6a8ddc0..66678217 100644
--- a/brewman/brewman/schemas/recipe_item.py
+++ b/brewman/brewman/schemas/recipe_item.py
@@ -1,5 +1,6 @@
 import uuid
 
+from decimal import Decimal
 from typing import Optional
 
 from brewman.schemas.product import ProductLink
@@ -9,8 +10,8 @@ from pydantic import BaseModel
 class RecipeItem(BaseModel):
     id_: Optional[uuid.UUID]
     product: ProductLink
-    quantity: int
-    price: int
+    quantity: Decimal
+    price: Decimal
 
     class Config:
         fields = {"id_": "id"}
diff --git a/overlord/src/app/core/product-sku.ts b/overlord/src/app/core/product-sku.ts
index f4f3e1b7..ef11007c 100644
--- a/overlord/src/app/core/product-sku.ts
+++ b/overlord/src/app/core/product-sku.ts
@@ -3,8 +3,6 @@ export class ProductSku {
   name: string;
   costPrice: number;
   salePrice: number;
-  fraction: number;
-  productYield: number;
   fractionUnits: string;
 
   isRateContracted: boolean;
@@ -14,8 +12,6 @@ export class ProductSku {
     this.name = '';
     this.costPrice = 0;
     this.salePrice = 0;
-    this.fraction = 0;
-    this.productYield = 0;
     this.fractionUnits = '';
     this.isRateContracted = false;
 
diff --git a/overlord/src/app/product/product-detail/product-detail.component.html b/overlord/src/app/product/product-detail/product-detail.component.html
index cb347e16..77f62011 100644
--- a/overlord/src/app/product/product-detail/product-detail.component.html
+++ b/overlord/src/app/product/product-detail/product-detail.component.html
@@ -94,7 +94,7 @@
             <mat-label>Sale Price</mat-label>
             <input matInput type="number" placeholder="Sale Price" formControlName="salePrice" />
           </mat-form-field>
-          <button mat-raised-button color="primary" (click)="addRow()" fxFlex="15">Add</button>
+          <button mat-raised-button color="primary" (click)="addRow()" fxFlex>Add</button>
         </div>
       </form>
       <mat-table [dataSource]="dataSource" aria-label="Elements">