How to Reduce Food Waste in a Small Cafe or Restaurant

It is closing time. You carry the last tray of muffins to the bin. You tell yourself it was a slow day. Then you do the same thing tomorrow.

This guide is for owners of small cafes, bakeries and restaurants. Your shop may be one year old or twenty. You will learn how to see what you really throw away, how to fix the biggest causes first, and what to do with food you cannot sell.

You do not need a new system. You need a sheet of paper, a kitchen scale and two weeks.

Key Takeaways

Food you throw away is food you already paid for. You paid for the ingredients, the prep time and the storage.

Measure first. Most kitchens find that one or two items cause most of the waste.

Prep to what you actually sold, not to a full case. Order the same way.

Share the numbers with your team. That is where the savings tend to come from.

Why waste matters more in a small shop

Food is one of your biggest costs. The National Restaurant Association says food costs are about 28% to 35% of restaurant sales. A bigger chain can absorb a bad week. A small shop often cannot.

ReFED, a US nonprofit, put numbers on it in its Restaurant Food Waste Action Guide. It said US restaurants make 11.4 million tons of food waste a year, at a full cost of more than $25 billion. It also said restaurants could save about $8 for every $1 spent on cutting waste. These are 2018 figures for the whole industry. Your own bin is what counts, and you can measure that in two weeks.

Step 1: Keep a waste log for two weeks

You cannot fix what you do not see. The US Environmental Protection Agency (EPA) lists a food waste audit first in its tip sheet for restaurants. Its steps are simple:

Keep one food waste bin in the kitchen.
Give each person a small tub at their station.
Before they empty it, they weigh it and write down the amount, the item and the reason.
Keep the log sheet near the bin.

Use four columns: item, amount, reason, rough cost. Reasons might be "made too much", "expired", "dropped", "sent back" or "burnt". Add a column for the cost so the sheet shows dollars, not just pounds.

Ask the people who do the work. The National Restaurant Association suggests talking with chefs, cooks and dishwashers to learn where and why waste happens. They know. Nobody has asked them.

After two weeks, add it up. Sort by cost. Circle the top two items.

Step 2: Count what it costs you

Here is a worked example. The numbers are ours, so swap in yours.

Say a cafe bakes 24 muffins each morning. On a normal day it sells 18. Six go in the bin. Each muffin costs 60 cents in ingredients.

6 muffins × $0.60 = $3.60 a day
$3.60 × 6 days = $21.60 a week
$21.60 × 52 weeks = about $1,120 a year

That is for one item, counting ingredients only. It leaves out the baker's time and the oven. A kitchen with five items like this has a bigger leak than it looks.

To work out what each plate or item costs you, use the free Food Cost and Menu Price Calculator. You type what the ingredients cost and the food cost you aim for. It gives you a menu price. The sums run in your browser.

Step 3: Prep to what you sold, not to a full case

Over-prep is the most common cause in small kitchens. The fix is dull and it works.

Look back. Check what you sold on the same weekday last week and the week before.
Prep to that number. Add a small cushion, not a full extra tray.
Make a second batch only if you sell out early. Cooking in smaller batches means less ends up in the bin. The EPA lists reducing batch sizes and cooking to order as ways to prevent waste.
Finish at the line. The EPA also suggests not finishing a dish until it is ready to go out. Then the leftover parts can go into other dishes.

It is fine to sell out. A popular item that is gone by 3 pm tells customers it is fresh. A full case at closing tells you that you made too much.

Slow days need their own number. If Tuesdays sell half of what Saturdays do, prep half. Our guide on how to survive slow Tuesdays covers ways to bring people in on those days.

Step 4: Order smaller and order closer to the day

What you buy decides what can spoil. A few habits help.

Count before you order. The EPA suggests regular inventory checks, and more often if spoilage is a problem. A quick shelf count before each order is enough.
Set a level for each item. Write down how much you want on the shelf after a delivery. Order only the gap.
Lower the level on slow days. A city guide from Portland, Oregon describes restaurants that adjust their stock levels during slow periods.
Ask your supplier for smaller packs. Some will pre-prep or split cases. You only know if you ask. The EPA says that simply asking suppliers about their waste policies shows them it is a priority.
Buy odd-shaped produce. The EPA also suggests buying bruised or odd-sized produce at a discount, if it works for your menu.

If one item has a short life and sells slowly, ask whether it earns its place. Our guide on menu engineering shows a plain way to decide what to keep, change or drop. The free Menu Engineering Calculator does the sorting for you.

Step 5: Store it so it lasts

Good storage is cheap. Spoiled food often comes from a shelf nobody checks.

Use clear containers. The EPA suggests see-through containers so staff can see what is there and how fresh it is.
Label and date. Write the day it was opened. Put the oldest in front.
Know what stores where. The EPA notes that different foods like different conditions. Tomatoes and lettuce should not share a container.
Freeze before it turns. The EPA suggests freezing surplus fruit and vegetables near the end of their freshness.
Revive wilted greens. The EPA says stalky vegetables that wilted can be soaked in warm water, about 100°F, for 15 minutes.

Step 6: Use the whole ingredient

Trim, ends and day-old food can become something else. The EPA gives easy examples: carrot greens can be cooked, cucumbers and potatoes do not need peeling, and yesterday's steak can go into tomorrow's stew.

Small ideas that fit a cafe:

Day-old bread becomes toast, croutons or bread pudding.
Overripe bananas go into banana bread.
Vegetable trim goes into stock.
Garnishes that guests do not eat come off the plate. The EPA lists this too.

Step 7: Sell it or give it away

Some food will be left. You have three good choices before the bin.

Sell it cheaper, once. An end-of-day box at a clear price clears the case. Do this on purpose, at a set time, so regulars do not wait for it every day.
Give it to staff. A meal for the team costs you nothing extra.
Donate safe surplus. Contact a local food rescue group. In the US, Portland's guide notes that Good Samaritan laws protect donations and that donations can be tax-deductible. Check the rules where you live first.

Step 8: Share the numbers with your team

Numbers on a clipboard do little. Numbers on the wall change habits.

Post the weekly total. Name the top item. Ask the team for ideas. ReFED's guide says waste tracking can lift profit, and the National Restaurant Association page, citing ReFED, says that tracking can cut food costs by 2% to 6%. Those are industry estimates, not a promise for your shop.

One business quoted in the Portland guide, Spin Laundry, reported cutting pastry waste by 55% in one month of tracking. That is one owner's own account. Use it as a reason to try, not as a target.

Your food waste plan, day by day

Day 1: Put a sheet and a scale by the bin. Tell the team why.
Days 1 to 14: Log every item thrown away, with the reason and the rough cost.
Day 15: Add it up. Circle the top two items.
Day 16: Cut the prep amount for those two. Check last week's sales for each weekday.
Day 17: Count the shelves and set a level for your top items. Change your next order.
Day 18: Move anything that spoils fast into clear, dated containers.
Day 19: Pick one way to use trim or day-old food. Put it on the board.
Day 20: Post the new weekly total where the team can see it.

Then keep the log going one week a month. Prices change, menus change and habits drift.

Where KANJIN fits

KANJIN (kanjin.app) is a free stamp card and back office for small shops. Customers join with their phone number at the counter. There is no app to download and no plastic card to lose.

KANJIN does not track your waste. The sheet and the scale do that. What KANJIN gives you is a list of your regulars, so you know who comes back and can ask them in. The back office sends Google review requests and marketing emails that bring regulars back.

Start your free stamp card. It takes a few minutes. For the cost side, try the free Food Cost and Menu Price Calculator on your top two items today. If a plate costs more than you thought, our guide on how to cut costs in a small shop covers the other bills to check, and how much a latte costs to make shows a full cost line by line.

Frequently asked questions

How much food waste is normal in a small cafe? There is no one number. ReFED's guide says food waste can be as much as 4.2% of sales in an average restaurant. Your own log is a better guide than any average.

Do I need a special app to track waste? No. A paper sheet, a pen and a scale are enough to start. Some businesses later buy tracking systems, but you can learn most of what you need from two weeks of paper.

What is the fastest way to cut waste? Prep less of the item you throw away most. Check last week's sales for the same weekday and cook to that.

Can I donate food from my cafe? Often yes, for safe, unserved food. Rules differ by state, province and country. Ask a local food rescue group what they accept, and how to hand it over safely.

Should I tell my staff what the waste costs? Yes. Show them in dollars, not just pounds. People change what they can see, and they often know the fix.

Will this lower my food cost percentage? It can. Throwing away less means you buy less for the same sales. The size of the change depends on your kitchen, so measure before and after.