Yield Percentage

Yield percentage is the proportion of an ingredient’s starting weight that remains usable after a specified preparation process. It is commonly used in professional kitchens to measure trimming loss, compare suppliers, calculate purchasing quantities and cost recipes accurately.

Yield percentage formula

Yield percentage = (usable weight ÷ starting weight) × 100

Use weights measured at clearly defined stages. For a basic trimming yield, compare the edible portion (E.P.) weight with the as-purchased (A.P.) weight.

Worked kitchen example

A kitchen receives 10 kg of whole carrots. After peeling and trimming, 8.5 kg remains for production.

Yield percentage = (8.5 kg ÷ 10 kg) × 100 = 85%.

The remaining 15% is trim or loss. It may be waste, or it may be suitable for another preparation such as stock, depending on quality and the kitchen’s food-safety procedures.

Why yield percentage matters

• Purchasing: calculate how much A.P. product is needed to obtain the required E.P. quantity.
• Recipe costing: account for trim loss instead of costing only the usable weight at the supplier’s price per kilogram.
• Consistency: compare results between staff, batches and suppliers.
• Waste control: identify unusual losses and opportunities to improve fabrication or use suitable trim.

Chef’s tip: Weigh the product before and after each important stage. Trimming yield and cooked yield are not interchangeable; cooking loss should be measured separately when it affects portion cost.

Key distinction: Yield is the usable quantity. Yield percentage is that quantity expressed as a percentage of the starting weight.