What is Food Waste Percentage?

Let's say you bake a 3-tier wedding cake. You buy 2kg of premium butter at $8/kg ($16 total). Some melts and separates in the ganache. A batch of buttercream breaks and you scrape it. You trim dried edges off the crumb coat. By the time the cake ships, you've wasted 180g of that butter — that's 9% of what you bought. Multiply that across 40 recipes and 20 orders a week, and you're hemorrhaging money you don't even see. Waste happens in three places: prep waste (trimmings, spillage, broken eggs), production waste (failed batches, over-proofed dough, split ganache), and spoilage (ingredients that expire before you use them). A home baker selling 8 cakes a month might waste 8% of ingredients and never notice. A commercial bakery running 200kg of flour a week at 15% waste is throwing away 30kg — that's $45-$90 in flour cost alone, before you count the butter, eggs, and vanilla that went into the failed batches. You calculate it by tracking every ingredient you buy against every ingredient that ends up in a finished product. If you spend $500 on ingredients in a month and 12% is waste, that's $60 in pure loss — money you already paid for and will never invoice a customer for. That $60 doesn't come back from your margin. It comes from your take-home pay. The tricky part: waste isn't just broken cakes. It's the 50g of fondant you trim off every cake to get clean edges. It's the butter that separates when you over-whip. It's the sourdough starter you discard before feeding. It's the vanilla extract that evaporates in an open container. It's the croissant dough lamination that fails on Tuesday and you start over. Track it and you'll see where your money is actually going.