Food waste control in restaurants: a practical guide and log sheet
Everything thrown away in the kitchen has already been paid for. Waste control means writing down what is lost, what it is worth and why, so you can fix it. You do not need a complicated system: a well-designed sheet, a routine and a weekly look at the data are enough. Here is a ready-to-use template and a filled-in example.
01Yield loss and waste are not the same thing
It helps to separate two things. Yield loss is the unavoidable loss when preparing a product: fish bones, onion skin, the weight meat loses when roasted. That belongs in the costing sheet, as part of the dish cost. Waste is what gets thrown away and could have been avoided: expired or spoiled product, overproduction, a dish sent back from the floor or a kitchen mistake. That is what goes on the waste sheet, because that is where you can act.
02Why log waste
What is not written down gets forgotten. A log tells you which products are lost most, on which shifts and for what reason, and puts a price on it. With that you can adjust orders, production and portions based on data rather than impressions. It also makes reconciling inventory much easier when you know what left the store room without being sold.
03The log sheet: seven columns
Each line is one waste entry: date, product, quantity, unit, cost, reason and action. Cost is the quantity times the purchase price per unit. The reason should come from a short, fixed list (spoilage, expired, overproduction, kitchen error, returned, leftovers from the floor) so you can group entries later. The action is the concrete step to stop it happening again. An example week would look like this:
| Date | Product | Quantity | Unit | Cost | Reason | Action |
|---|---|---|---|---|---|---|
| Monday | Romaine lettuce | 3 | unit | €2.40 | Spoilage | Order smaller quantities more often |
| Tuesday | Cooked rice | 1.5 | kg | €1.20 | Overproduction | Match lunch production to bookings |
| Wednesday | Cream | 1 | l | €3.10 | Expired | Check cold-room rotation: first in, first out |
| Friday | Sirloin | 0.4 | kg | €9.60 | Kitchen error | Review with the team how doneness is written on the ticket |
| Saturday | Bread | 12 | unit | €3.00 | Floor leftovers | Serve bread on request |
04How to cost each waste entry
For raw product, use the purchase price per unit: 0.4 kg of sirloin at €24.00/kg is 0.4 × €24.00 = €9.60. For prepared items (a sauce, a side, a finished dish), use their costing-sheet cost: if a portion of lasagne costs €3.00 in ingredients and two are thrown away, that is €6.00. You do not need precision to the cent; what matters is getting the order of magnitude right so you know where the money goes.
05How to roll it out without it becoming a punishment
Put the sheet (or the tablet) where product gets thrown away, not in the office. Make logging quick: product, quantity and reason; cost can be filled in later. Make it clear the goal is to find causes, not culprits: if logging a mistake gets someone told off, the team will stop logging. And set a moment, for example the end of each shift, so nobody has to remember.
06What to do with the data each week
Once a week, add up cost by reason and by product and look at the top of the list: it usually accounts for a good share of the loss. Each reason has its lever. Spoilage and expiry are tackled with tighter orders and good cold-room rotation; overproduction, by producing to the forecast of bookings and sales; mistakes, by reviewing with the team how the order reaches the kitchen; floor leftovers, by reviewing portions and sides. The following week, check whether the measure worked.
07Logging waste with Tablezio
Tablezio has a waste log inside inventory. Each entry records the product, quantity and unit, estimated cost, category (spoilage, overproduction, plate waste, prep waste, expired, damaged or other), reason, notes, station and date. If you link it to an inventory item, that quantity is deducted from stock. You can then see cost grouped by category, how it evolves over time and the products that lose you the most money. It is included in the Pro plan.
Waste control works through consistency, not sophistication: a simple sheet, filled in every shift and reviewed every week. Within a few weeks you will know which products and which reasons cost you most, and you can act on them.