Food waste is all the food a restaurant buys or makes but doesn’t sell: expired ingredients, leftover prep, portions left on the plate. It’s a hidden cost that hits margin directly, because it’s money already spent that ends up in the bin.
Industry estimates put a significant share of purchased food at risk of being wasted. Every kilo binned is food cost paid twice: you bought it, and you have to dispose of it too.
How to cut it
Food waste is fought on three fronts: buying better (accurate inventory management), producing the right amount (forecasts based on expected covers) and monitoring food cost to spot where it leaks.
Reservation data is decisive here: knowing how many covers to expect by daypart lets you size prep and avoid overproduction. It’s also a sustainability lever, increasingly central in 2026. Here’s how to cut waste with reservation data and how to calculate and reduce food cost.
Frequently asked questions
- What is food waste in a restaurant?
- All the food bought or made but not sold: expired ingredients, leftover prep, portions not eaten. It's a direct cost on margin, because it's money already spent that gets thrown away.
- How do you reduce food waste?
- By buying to real consumption, producing to the forecast of covers, monitoring food cost, and using reservation data to size production and avoid overproduction.