Cooking and trim yield: what it does to ingredient cost
You pay for everything in the box, but you can only serve part of it. Yield is the bridge between what you buy and what you use.
Last updated 2026-09-21. Yield percentages in this guide are made-up illustrations. Measure your own. Yield here is a costing assumption, not a food-safety or cooking-time guide.
What yield means
Usable yield is the share of what you purchase that ends up usable after trimming, peeling, cooking or other loss.
If 10 oz of a raw ingredient gives you 6 oz that you can actually use, the yield is 60%.
How yield changes cost
Each usable pound has to carry the cost of the waste that came with it, so divide the purchase price by the yield.
Worked example (fictional): peeled onions
Onions cost $1.00 per pound as purchased. Suppose 80% of the weight is usable after peeling and trimming.
- Cost per usable pound = $1.00 ÷ 0.80 = $1.25
- A recipe needing 2 lb of peeled onions costs 2 × $1.25 = $2.50, not $2.00.
Two ways to enter an ingredient
- As purchased. The recipe amount is the raw amount you consume. No yield adjustment is applied, and any yield field is ignored.
- Usable amount. The recipe amount is what you need after trimming or cooking. The calculator divides by the yield you enter. It starts at 100% and asks you to confirm or edit it, because it will never guess a yield for you.
Apply yield once
The most common yield error is counting the same loss twice. There are two places loss can hide: the ingredient’s yield, and the finished portions. Choose one.
Worked example (fictional): a whole braised pork shoulder
You buy a shoulder for $30 and use all of it. After trimming and braising it makes 20 servings.
- Enter the $30 shoulder as purchased and set the finished portions to 20. Batch cost $30 ÷ 20 = $1.50 per portion.
- Do not also enter a 55% yield on the same shoulder. The 20 portions already reflect the loss. Doing both would push the cost per portion to about $2.73.
Use ingredient yield when a recipe calls for a usable quantity (2 lb of peeled onions). Use finished portions when you are costing the whole batch and know what it serves.
Ingredients that gain weight
Rice and dried pasta absorb water, so their cooked weight is larger than what you bought. This calculator’s yield is a loss model and stops at 100%. For these ingredients, enter the dry amount you purchase and let the finished portions carry the result.
Finding your own yield
- Weigh the ingredient before and after the step, several times, for the cut and method you actually use.
- Expect different results across suppliers, grades and cooks. Re-measure when any of them changes.
- Record the result and the date, so the number can be revisited.
See also recipe costing. This guide is a method for estimating cost only.