Note:
There is also a separate tutorial, “Managing gross weight & net weight conversion in your recipes”, which explains how to apply a loss directly inside a recipe.
The method described here works differently: it applies the loss at the supplier article level, when purchasing.
🔎 What is the difference with the tutorial “Managing gross weight & net weight conversion in your recipes”?
There are two different ways to manage the difference between gross and net weight, depending on how your site operates.
🟢 1️⃣ Yield rate (at supplier item level)
The yield rate should be used when:
the product is already trimmed or prepared by the supplier,
or trimming is done immediately upon receipt.
👉 In this case:
stock is increased using the net weight,
inventories are counted using the net weight.
Example:
You purchase 1 kg gross with a 20% loss →
0.8 kg is added to stock and counted during inventory.
🔵 2️⃣ Gross → net conversion via a recipe
The method described in
“Managing gross weight & net weight conversion in your recipes” should be used when:
you store and count the product using the gross weight,
but use it as net weight in your recipes.
👉 In this case:
inventory remains based on the gross weight,
the loss is applied when the product is used in a recipe.
Example:
You have 1 kg gross in stock,
but a recipe automatically consumes 0.8 kg net.
🧠 How to choose?
If the loss happens before or at stock entry → use the yield rate.
If the loss happens during preparation or recipe usage → use the recipe-based method.
1️⃣ What is the yield rate?
The yield rate indicates the difference between:
the gross weight purchased (invoice weight), and
the net usable weight added to stock.
This is useful for items that incur trimming or processing losses: meat, fish, raw vegetables, etc.
2️⃣ Where to enter the yield rate?
You can configure the yield rate directly on the supplier article:
Supplier articles → Yield rate
It is entered as a percentage.
Examples:
80% → 1 kg gross purchased gives 0.8 kg net added to stock
70% → 1 kg gross purchased gives 0.7 kg net added to stock
3️⃣ How does it work during a purchase?
Example: yield rate = 75%
You receive 1 kg of an item.
Gross weight invoiced: 1 kg
Net usable weight: 0.75 kg
Stock increases by 0.75 kg
The purchase price remains based on 1 kg (gross weight)
The cost price of the product is calculated on the net weight
This results in:
stock levels that reflect reality,
more accurate cost prices,
better margin analysis.
4️⃣ Best practices
Use this feature for items with a consistent and predictable trimming loss.
Once the yield rate is updated, future purchases will automatically apply the gross → net conversion.
5️⃣ Summary
The yield rate automatically converts gross weight purchased into net weight added to stock.
Purchase price remains based on the gross weight.
Stock and cost price are based on the net weight.
Ideal for any item with trimming or processing loss.