How much does restaurant food waste really cost?

Ask how much restaurant food waste costs and you will find plenty of numbers: a share of food bought, a weight per meal served, a total for a country or an industry. They are useful for describing a problem at scale, and almost useless for running a kitchen. They measure different things, in different ways, for kitchens that are not yours, and they tell you nothing about what is in your own bins this week.

The figure that matters is your own. It is built from your bins, your prices and your team's time, and it is surprisingly easy to produce. A week of weighing, a few calculations and an honest look at what the numbers mean will tell you more about your food waste cost than any statistic, and it will point at the waste worth tackling first.

This guide shows how to build that figure: the parts of waste that cost money, how to measure each, how to turn the total into points of food cost, and how to decide what to do about it. Every figure in it is an example; replace them with your own.

Published figures for food waste come from studies with their own definitions. Some count only edible food; some include bones, peelings and coffee grounds. Some measure by weight, some by value, some by meal. Some cover all hospitality, from hotels to hospitals, and some cover a single format. Many are several years old. The overview in Wikipedia's article on food waste shows how widely definitions and methods vary.

Even a careful figure for restaurants in general describes an average kitchen that does not exist. A sushi bar, a carvery and a pizza takeaway waste different things, in different amounts, for different reasons. A borrowed figure can tell you that waste matters; only your own figure can tell you how much, and where.

The cost of food waste is not just the price of the food in the bin. Thrown-away food carries several costs with it, and a fair figure includes them.

The first two are the largest in most kitchens. The rest are smaller but real, and leaving them out understates what waste costs.

Start with a week of weighing. Every time food goes into the bin, weigh it and write it down with a reason, or collect it in containers by type and weigh them at the end of each service. Our guide to starting a waste log your team will actually fill in shows how to make the weighing quick, and our guide to a waste audit you can run in a single service shows how to get a complete picture of one service.

A week is enough to start, because it includes busy and quiet days. Weigh food waste only: packaging, cardboard and other rubbish go in their own bins and are not part of this figure.

Sort the week's weight into a few categories, because each has a different cost per kilogram.

Keeping inedible parts separate matters. They are part of the disposal cost, but they cannot be reduced in the same way, and including them in avoidable waste inflates the figure you are trying to bring down.

Give each category a cost per kilogram, based on what the food cost to buy. You do not need to cost every item; an average for each category, built from the main items in it, is enough.

For spoilage, use the purchase price of the items that are typically thrown away: salad leaves, herbs, dairy, bread. For prep waste, use the purchase price of the main items: vegetables, proteins, potatoes. For plate waste, use the average food cost of a plated portion per kilogram, from your recipe costings. Our guide to plate cost shows how to cost a plate.

Food that was prepared or cooked before being thrown away carries the labour that went into it. To estimate it, work out roughly how much prep time goes into a kilogram of each prepared item, and multiply by your labour cost per hour, including on-costs.

An example. Prepared chips take about six minutes of a cook's time per kilogram, from peeling to blanching, and the kitchen's labour cost is an example 18 an hour. That adds about 1.80 to every kilogram of prepared chips thrown away, on top of the potatoes and the oil.

Plate waste carries the most labour of all: preparation, cooking, plating and service. Estimating it precisely is difficult, so use a simple figure, such as the labour cost per cover divided by the weight of a typical plate, and treat it as an approximation.

Look at what you pay for waste collection. If food waste is collected separately and charged by bin or by weight, divide the cost by the weight collected to get a cost per kilogram. If it is part of a general waste contract, estimate the share of the bin that is food.

Disposal is changing in some places. In England, workplace recycling rules changed on 31 March 2025, requiring most businesses to separate food waste for collection, with micro-firms of fewer than ten full-time equivalent employees given until 31 March 2027. The government's guidance on simpler recycling in workplaces sets out the rules. A separate food waste collection usually makes its cost easier to see.

An invented restaurant weighs its food waste for a week and sorts it:

The food and labour in avoidable waste come to about 451 for the week, and disposal adds about 23, for a total of roughly 474. Over a year of similar weeks, that is close to 25,000. The plate waste alone, in this example, accounts for more than half.

Put the food part of the figure next to your food purchases and your food cost percentage. In the example, the food content of avoidable waste is the spoilage (72), the trim (30), the ingredients in over-produced food (56) and the food in plate waste (176), about 334 a week. If the restaurant buys 9,000 of food a week and sells 30,000, its waste is about 3.7 per cent of purchases, and its food cost percentage would be about 1.1 points lower if that waste disappeared.

That is the number that makes waste concrete for an owner or a head chef: not a statistic about the industry, but a point of food cost in this kitchen, every week. Our guide to calculating food cost percentage covers the calculation it sits inside.

Two costs rarely appear in any waste calculation, and both matter in a busy kitchen.

The first is time. Every portion prepared and thrown away took a cook's time that could have gone into something else: a better special, a cleaner close, training a new starter. In a kitchen that is short of hands, over-preparation is not only a cost in wages but a cost in what the team did not have time to do.

The second is space. Food that will be thrown away occupies fridge shelves, freezer drawers and prep surfaces until it is. A kitchen that over-orders and over-prepares feels cramped, and cramped kitchens are slower, harder to keep clean and more prone to the stock rotation mistakes that cause more spoilage. Cutting waste often frees space that makes the whole kitchen work better.

Neither is easy to put a number on, and there is no need to. It is enough to know that the figure built in this guide is, if anything, an underestimate.

A single week gives a figure; a year gives a picture. If you repeat the week of weighing once a quarter, the four figures show how waste moves with the seasons, the menu and the team, and whether the changes you make are holding.

Expect differences. Summer menus with more salads and fresh produce can raise spoilage; winter menus with braises and roasts can raise prep waste and plate waste; quiet months after a busy season often show over-preparation, because prep habits from the busy weeks linger. Knowing the pattern lets you plan for it rather than be surprised by it.

Not all waste is equally worth tackling. Rank each category, and the main items within it, by two things: how much it costs, and how avoidable it is.

Start with the item that is both expensive and clearly avoidable. In many kitchens that is an automatic side, a bread basket or a prepared item made to habit.

Reducing waste has a limit. A kitchen that prepares so tightly that it never throws anything away will sometimes run out, and running out has a cost too: a disappointed guest, a lost sale, a dish taken off the menu halfway through service.

The right balance depends on the dish. For a cheap, central dish that keeps well, a little over-preparation costs less than running out. For an expensive, perishable dish with alternatives on the menu, running out near the end of service may be the better outcome. Our guide to prepping from forecast discusses how to set the buffer dish by dish.

When deciding what to do with waste, the general principle is to prevent it first and dispose of it last. Prevention, then redistribution to people where safe and permitted, then use for animal feed where allowed, then recycling and composting, and finally disposal: this ordering is known as the waste hierarchy. For a kitchen, almost all of the money is in the first step. Every kilogram not bought, prepared or plated in the first place saves its full cost; recycling it saves only part of the disposal.

After making a change, measure again. A week of weighing a month later shows whether the change worked and how much it saved. In the example, if making the side salad optional cut plate waste by 5 kilograms a week, that saves about 60 a week, or over 3,000 a year, for a change that took ten minutes to decide.

Re-measuring also keeps the figure honest. Without it, the waste that was reduced quietly creeps back, and the kitchen loses the gain it made.

A waste figure is most persuasive in money and in specific items. "We threw away 22 kilograms of plated food last week, worth about 264" is more powerful than a percentage. "Most of it was the side salad and the bread" is more useful still, because it tells everyone what to change.

Share the figure with the whole team, not just the managers. The people who prepare and plate food are the ones who can reduce waste, and they cannot do it without knowing what it is. Share the improvements too, so the effort is visible.

Waste reduction works best as a shared project. A kitchen where waste is treated as a personal failing hides it; one where it is treated as a cost the team can bring down reports it honestly and suggests fixes. Our guide to reducing food waste in a restaurant kitchen covers the practical changes, from ordering to menu design.

Weighing and costing waste happens in the kitchen and on your own sheet: servearound does not record waste or hold ingredient costs today. Two things in servearound help interpret what the bins show.

The menu report in Analytics shows units sold for every dish over any range of dates, which helps set prep from demand and shows whether a change, such as making a side optional, affected what guests order. Kitchen analytics show a remake rate and flag tickets that were fired again, so remakes, one source of plate waste, appear as a number. If you would like to see it, get in touch.

It depends entirely on the kitchen. Measure your own: weigh a week of food waste, sort it into categories, and cost the food, the labour in it and the disposal. In this guide's example, the total was roughly 474 a week.

Published figures use different definitions, methods, formats and years. They describe an average kitchen, not yours, and they cannot tell you where your own waste is.

The food itself, the labour put into preparing and serving it, energy and other inputs, and the cost of disposal. Space and cash tied up in stock are smaller, real costs too.

Weigh it for a week, by category, with a reason for each entry. A waste log by the bin, or a waste audit for a single service, gives you the weights.

The food in avoidable waste is part of your food cost. In the example, eliminating it would have lowered food cost by about 1.1 points.

The waste that is both expensive and clearly avoidable, often plate waste from automatic sides or bread, and prepared food made to habit rather than demand.

Count them for disposal, but keep them separate from avoidable waste. Bones, peel and coffee grounds cannot be reduced in the same way, and mixing them in inflates the figure.

Continuously with a simple waste log, and with a full week of weighing whenever you want to check the figure or measure the effect of a change.

Treat it separately. It is a consumable rather than food, and in many places it is collected on its own, sometimes for a payment rather than a charge. Include its cost in the cost of fried dishes instead.

Surplus food that is safe and still within its dates can sometimes be redistributed through local schemes, which is better than the bin. Prevention still saves far more, because donated food was still bought and prepared.

Yes. A kitchen that never over-prepares will sometimes run out. Set the balance dish by dish, according to the cost of waste against the cost of running out.

The real cost of restaurant food waste is your own figure, not a borrowed statistic. Weigh a week of waste, sort it into spoilage, prep waste, plate waste and inedible parts, and cost each: the food at purchase price, the labour put into prepared and plated food, and the disposal. In this guide's example, the result was about 474 a week, close to 25,000 a year, and more than a point of food cost.

Rank the waste by cost and avoidability, start with the expensive, avoidable items, and prevent waste before worrying about disposal. Balance waste against the cost of running out, measure again after every change, and share the figures with the team in money and specific items. A number from your own bins is the one that changes what goes into them.