| Global food-waste context |
| Food wasted globally in 2022 | Approximately 1.05 billion tonnes of food waste were generated at household, food-service, and retail levels. | Food waste is a significant global issue. Use the figures as context, not as a measure of any individual restaurant’s waste. |
| Households | About 631 million tonnes, or 60% of the total. | UNEP’s household figure is not a restaurant benchmark; track kitchen waste separately from customer-side waste. |
| Food service | About 290 million tonnes, or 28% of the total. | Restaurants are part of the food-service sector, making careful purchasing, preparation, and storage relevant waste-control areas. |
| Retail | About 131 million tonnes, or 12% of the total. | Coordinate ingredient purchasing and delivery schedules to reduce the risk of stock expiring before use. |
| Seven practical tips — track results in your own kitchen |
| 1. Forecast demand by day and time | Compare the number of portions prepared with portions sold for each service period. | Use recent sales patterns, weekday differences, and known local events to plan smaller, more frequent prep batches. |
| 2. Prep in small batches | Record the amount prepared, sold, and left over for high-waste ingredients. | Prepare another batch when needed instead of filling the display with more ingredients than expected demand requires. |
| 3. Standardize portion sizes | Check serving weights or counts against a consistent portioning guide. | Use portion tools and clear staff instructions so ingredient use and customer servings are consistent. |
| 4. Rotate stock using FIFO | Log delivery dates and use the “first in, first out” approach for ingredients with different arrival dates. | Place older suitable stock at the front and label containers with preparation or opening dates. |
| 5. Improve storage and labeling | Check storage conditions and discard reasons; follow local food-safety requirements. | Keep ingredients covered, correctly stored, and clearly labeled to help prevent spoilage and avoidable disposal. |
| 6. Review the menu and ingredient overlap | Compare ingredient usage across menu items and identify ingredients with frequent leftovers. | Where practical, design menu options that share suitable ingredients, while maintaining food-safety controls and customer choice. |
| 7. Weigh and review prep waste | Record discarded food by ingredient, quantity, and reason; review the log regularly. | Use the records to adjust purchasing and prep quantities. Compare waste and food cost over time rather than assuming a profit increase. |