The number that makes or breaks your food cost estimates.
You run your food costs every month. The numbers look solid on paper. Then the actuals come in, and you’re three, four, five points off. Again. The management meeting turns into an interrogation about what went wrong this month. And last month. And the month before.
The likely culprit: you’re costing ingredients at 100% yield, and 100% yield doesn’t exist in any kitchen on earth. You need to add ingredient yields in food costing, no matter what software you are using.
Ready to get your food costs under control? Download the free recipe costing template at foodcostchef.com/free-recipe-costing-template/ or check out the FoodCostChef Calculator at foodcostchef.com
What Yield Actually Means
Yield is the answer to one question: How much of this product will ever make it to my customer’s plate?
Not how much you bought. Not how much is in the walk-in. How much will actually end up as revenue?
The answer is never 100%. You have to factor in spillage, poor measuring, spoilage, burning, and many other possibilities, including theft. Over the course of a year, every ingredient in your kitchen loses something before it ever goes into a recipe or lands on a plate.
That loss has a cost. And if you’re not building it into your numbers from the start, you’re running projections based on a fantasy.
Two Places Where Yield Matters
This is where a lot of chefs get confused. Yield happens at two distinct points, and you need to track both.
Ingredient-level yield is the loss that happens before the product ever goes into a recipe. This is spillage, spoilage, staff consumption, waste from poor handling. When I enter an ingredient into the FoodCostChef Calculator, I typically start with a 95% yield. That means I’m assuming 5% of that product will never make it into any recipe over the course of a year. Whipping cream at $7.59 per litre becomes $7.99 per litre at 95% yield. That’s the real cost, not the invoice cost.
Recipe-level yield is cooking loss — shrinkage, reduction, trim. This gets handled when you write the recipe itself. I have a base recipe for cooked chicken meat that starts with 10 pounds of raw chicken and yields only 8.5 pounds after cooking in a combi oven. That shrinkage is built into the recipe, separate from the ingredient yield.
The chicken itself still has its own ingredient-level loss. So does the olive oil it was cooked in. So does the salt. Two different types of yield, tracked in two different places.
You Don’t Need to Know Math
If the idea of yield percentages makes your eyes glaze over, here’s the good news: you don’t need to calculate anything. You enter a yield percentage once when you add an ingredient, and the software does the rest.
Ask yourself: over a year, what percentage of this product will actually reach a customer? That’s your yield. Enter it, move on. The math happens automatically — in every recipe, every plate, every menu item that uses that ingredient.
No spreadsheet formulas. No manual recalculations when prices change. One number, entered once.
Realistic Projections, Month After Month
The whole point of tracking yield is to build reality into your numbers from the start.
When your projected food costs already account for the fact that 5% of your dairy will spoil, that 15% of your oysters will get eaten by staff doing quality checks, that some percentage of everything will hit the floor or get measured wrong — your actuals come in where you expected them. Or better.
That’s the goal: get ahead of the numbers so they come in better than expected, not worse. When your projections are built on realistic yield assumptions, you stop having those monthly meetings where everyone’s trying to figure out why you missed the target again.
Get Ahead of Food Cost, Not Behind It
Most kitchens figure out their yield problems after the fact. The P&L comes in, food cost is high, and now everyone’s scrambling to figure out what went wrong.
Tracking yield at the ingredient level flips that around. You’re building in the losses before they happen. When the actuals come in, you’re not surprised — you planned for it. That’s the difference between a chef who’s managing food cost and a chef who’s reacting to it.
There’s No “Right” Percentage
I use 95% as my default for most ingredients, but that’s a starting point, not a rule.
Some products will be higher. A well-controlled dry goods storage with tight HACCP protocols might hit 98% yield on flour and sugar. Other products will be lower. Oysters, for example — I watched Chef Preston at Lure Seafood in New York eat half a dozen during a quality check before service. That’s not waste, that’s the job. But it’s still product that never reaches a customer. I’d put oysters at 85% yield, maybe lower.
This is a judgement call for your kitchen. What matters is that you’re making a conscious decision about it rather than pretending 100% of everything you buy turns into revenue.
Don’t Accept Bad Yield — Fix It
Here’s the final piece: yield isn’t just something you accept and account for. It’s something you can improve.
If your ingredient-level yield on dairy is 85% because product keeps spoiling before you can use it, that’s not a number to plug into a calculator and forget about. That’s a storage problem, a rotation problem, or an ordering problem. Track the yield, yes — but then work on the causes.
The calculator gives you visibility. What you do with that visibility is up to you. A chef who tracks yield at 85% and then improves it to 92% over six months has effectively lowered their food cost without touching a single menu price.
Chefs, I hope this shows how thinking about yield at the ingredient level — not just in your recipes — can help get your food costs under control.
Remember: it’s only good food if the math works.
Check out Chef Preston at Lure Fishbar in the Eater video here.
