What is shrinkage in a restaurant?

The monthly stock count shows the bar has used eight more bottles of vodka than the till says it sold. The owner's first thought is that someone is stealing. Before saying anything, the manager looks closer: two bottles were broken in a delivery and never recorded, the bar's new cocktail uses a larger measure than the recipe the count was based on, one bottle was used for a staff party and the count itself missed a case in the cellar. Of the eight bottles, perhaps one is unexplained.

What is shrinkage? In a restaurant, shrinkage is stock that leaves the business without being sold: food and drink bought, received and then lost to waste, mistakes, theft or errors in the records. Every venue has some. The question is how much, and why, and the answer is rarely as simple as the first guess.

This guide covers what shrinkage is, its four causes, how to measure it through the inventory variance, why stock count accuracy matters so much and how to tell the causes apart before accusing anyone. Every venue and figure in it is an example.

Shrinkage is the difference between the stock a venue should have and the stock it actually has. If the purchases and the sales say the kitchen should have ten kilos of beef left, and the count finds seven, three kilos have shrunk: they left without being sold, or the records were wrong.

The term comes from retail, where it describes stock lost between the supplier and the till. In accounting, shrinkage covers the same idea for any business that holds stock.

Some restaurant shrinkage is unavoidable. Food spoils, dishes are dropped, a batch comes out wrong and has to be remade, trimming creates waste. A venue with no shrinkage at all is probably not counting properly.

The aim is not zero, but a level the venue understands and keeps small. Shrinkage that is known, measured and explained is a cost of doing business; shrinkage that is unknown is a leak.

Waste is the most common cause of shrinkage. Food that spoils before it is used, prep that is thrown away at the end of the night, dishes that are sent back and remade, plates that are dropped, drinks that are spilled. All of it was bought and none of it was sold.

Waste is only shrinkage if it is not recorded. A kitchen that logs its waste, with the item, the quantity and the reason, can see it and reduce it. Our guide to how to reduce food waste in a restaurant kitchen covers the methods.

Errors are the cause most often mistaken for theft. A count that misses a shelf, a unit counted in kilos one month and in packs the next, a delivery received without checking and short by a case, a recipe that uses more than the costing assumed, a drink poured with a larger measure than the menu says.

None of these involve anyone taking anything, but they all show up as stock missing. Before suspecting anyone, check the counts, the receiving and the recipes.

Theft does happen: stock taken from the store, drinks given away, food taken home, cash taken from the till with the sale erased. It is less common than many owners fear, but it does exist, and the records are what reveal it.

Theft from the till often looks like shrinkage too: a drink sold for cash and then voided leaves the stock used and the sale missing. Our guide to till fraud: the six patterns worth watching covers the signs.

Supplier problems are the fourth cause: deliveries short of what the invoice says, products below the specified weight, prices that differ from the agreed ones and credits for returns that never arrive. The stock was paid for but never fully received.

Check deliveries against the invoice and the order, weigh what should be weighed and chase every credit. Our guide to purchase price variance: when the invoice drifts covers how to catch prices that move.

Shrinkage is measured through the inventory variance: the difference between what the venue actually used and what it should have used. Actual use comes from the stock counts and the purchases: opening stock, plus purchases, minus closing stock. Expected use comes from the sales and the recipes: how much of each ingredient the dishes sold should have needed.

The variance is the gap between them, item by item. A small variance on most items and a large one on a few tells the venue exactly where to look.

Take a single ingredient. A kitchen opens the week with 20 kilos of chicken, buys 60 kilos and closes the week with 18 kilos. It used 62 kilos. The dishes it sold, multiplied by the chicken in each recipe, should have used 56 kilos. The variance is 6 kilos, about a tenth of the expected use.

The next question is why. Was chicken wasted? Did the count miss a box? Are the portions larger than the recipe? Was a delivery short? Each possibility points to a different fix.

Every shrinkage figure depends on stock count accuracy. If the counts are wrong, the variance is wrong, and the venue may chase a loss that does not exist or miss one that does.

Count at the same time each period, every storage area, in consistent units, with part-used items handled the same way each time. Our guide to how to run a restaurant stock count properly covers the method, and our guide to what a stocktake is, and how often covers the timing.

The expected use is only as good as the recipes. If the recipe says 150 grams of chicken but the kitchen serves 180, every portion adds 30 grams of variance, and over a busy week the gap looks like theft.

Check the recipes against what is really served: weigh a few portions, watch the plating and update the recipe or the practice. Standard portions protect the margin and make the variance meaningful.

Record waste every day: the item, the quantity, the reason and the person. A simple waste sheet, or a log on a tablet, turns invisible shrinkage into a figure the kitchen can see.

Waste recorded is waste explained. When the variance is compared with the waste log, much of it often disappears, and what remains is the part worth investigating.

Receiving is where supplier shrinkage is stopped. Check every delivery against the order and the invoice: the items, the quantities, the weights, the dates and the condition. Refuse what is wrong, note what is short and make sure credits follow.

Train more than one person to receive, and give them the authority to refuse. A delivery signed for without a check is the easiest place for stock to go missing without anyone taking it.

Bars are especially prone to shrinkage: expensive stock, small measures, late hours and drinks that are easy to give away. Measures on every pour, every drink through the till and regular counts of the key bottles keep the bar's shrinkage small.

Our guide to bar inventory management without closing the bar covers how to count a bar quickly and read its variance.

Before accusing anyone, work through the causes in order. Check the count: was anything missed or miscounted? Check the receiving: were deliveries short? Check the recipes and portions: is more being used than the recipe says? Check the waste log: was the loss recorded as waste? Only then look at theft.

Most of the time, the first four explain most of the variance. Jumping to theft first damages trust in the team, and is usually wrong.

When the other causes have been ruled out and a loss remains, look for patterns: a loss concentrated on certain shifts, certain items or certain people; voids after payment; stock missing from a particular storage area. Our guide to what a void is, and why it must be recorded covers the till side.

Handle it carefully and fairly: gather the records, speak privately with the people involved and take advice before any accusation. A wrong accusation can cost the venue a good member of staff, and sometimes much more.

A few simple controls prevent most shrinkage: locked storage for valuable stock, a named person responsible for each store, deliveries checked on arrival, every sale through the till, measures at the bar, a waste log and regular counts. None of them assumes anyone is dishonest; together, they make honest mistakes visible and dishonesty difficult.

Explain the controls to the team as normal practice. People accept them far more readily when they understand that the controls protect them as well.

Review the inventory variance every period, item by item, starting with the most valuable and the largest gaps. Note the explanations found and the fixes made, and see whether the variance falls the next period.

A shrinkage figure that is reviewed and acted on every month falls over time. One that is calculated and filed rarely does.

Shrinkage looks different in the kitchen and the bar. In the kitchen, most of it is waste and portions: trimming, spoilage, over-generous plates. At the bar, more of it comes from pouring, spillage and drinks given away, because the stock is expensive and the measures are small.

Measure them separately, with their own counts and variances. A combined figure hides a bar problem inside a kitchen's normal waste, or the other way round.

Some items are more likely to go missing than others: expensive proteins, spirits, wine, cheese and anything small and valuable. Count these more often than the rest, perhaps weekly or even daily, and keep them in locked or controlled storage.

A short list of high-risk items, counted often, catches most of the shrinkage that matters, without the cost of counting everything every week.

Shrinkage costs more than it seems. A variance of 3 per cent on a monthly food spend of 25,000.00 is 750.00 a month, 9,000.00 a year, all of it money paid for food that earned nothing.

Put the figure in those terms for the team. "We lost the cost of a cook's wages last year to food we never sold" is a far stronger reason to record waste than a percentage on a report.

Staff meals, tastings and food used for training are part of the stock used but not sold. If they are not recorded, they appear as shrinkage, and the variance looks worse than it is.

Record them separately, with an estimate of their cost. They are a legitimate cost of running the kitchen, and seeing them on their own keeps the shrinkage figure honest.

Between full counts, spot checks keep the figures honest: a count of a few high-risk items at an unexpected time, compared with what the records say should be there.

Spot checks catch problems early and remind everyone that the stock is watched. Present them as routine, done by the manager in turn across every area.

Talk to the team about shrinkage openly, as a shared problem rather than an accusation. Share the figures, explain what causes most of it and ask for their ideas: they often know where waste happens and why.

A team that understands shrinkage helps reduce it: recording waste, checking deliveries and portioning carefully. One that feels suspected tends to hide mistakes instead.

Set a target for the variance, based on the venue's own figures and what is realistic for its menu: lower for a simple menu with few perishables, higher for one with many fresh ingredients and complex dishes.

Track the figure against the target every period. A variance that stays within the target needs only routine attention; one that rises above it is the signal to work through the causes again.

Systems can make shrinkage easier to measure: counts entered on a tablet, recipes linked to sales and variance reports produced automatically. But the system is only as good as the counts, the recipes and the records of waste put into it.

Start with the habits: accurate counts, standard recipes and a waste log. Add technology when the habits are in place, and it will multiply their value.

Deliveries that arrive during service are the most likely to be signed for without a check. The cook who receives them is busy, the driver is waiting and the boxes are put away unopened.

Agree delivery windows outside the busiest hours where suppliers allow, and when a delivery must arrive during service, check at least the high-value items before signing. A quick check on the meat and the wine catches most short deliveries.

Poor storage causes shrinkage too: food that spoils because the fridge is too warm, stock pushed to the back and forgotten past its date, dry goods spoiled by damp. None of it was stolen, but all of it was lost.

Rotate stock so the oldest is used first, check fridge and freezer temperatures daily and keep the stores tidy enough that every item can be seen. A store that is easy to count is also easy to use well.

Portions grow on busy nights, when cooks are rushed and a scale feels like a delay. A few extra grams on every plate, across a busy service, can explain a large part of a kitchen's variance.

Make portioning quick: pre-portioned proteins, scoops and ladles of the right size, and plates that show the right amount. Check a few portions during service, without slowing the line.

Credits agreed for short or damaged deliveries are easy to forget. The driver promises a credit, the kitchen moves on and the credit note never arrives. The venue has paid for stock it never received.

Keep a list of credits due, and check it against the supplier's statements each month. A credit chased in the same month is usually paid; one remembered three months later often is not.

The end of the night is when much shrinkage happens unseen: food left out instead of stored, prep thrown away rather than labelled for tomorrow, open bottles left uncapped. A short closing routine, checked by the person in charge, prevents most of it.

Include the waste log in the routine. A night's waste recorded at close is far more accurate than a figure remembered the next morning.

Give the variance an owner: the head chef for the kitchen and the bar manager for the bar. The owner explains each period's figure, item by item, and agrees the fixes. Shrinkage that belongs to nobody rarely falls.

An invented bistro's monthly count shows its food variance at about 8 per cent of the expected use, and the owner suspects theft. The manager works through the causes. The count missed the freezer in the yard; two deliveries were short and never credited; the steak portions were about a fifth larger than the recipe; and the waste, never recorded, was considerable.

After counting every store, chasing the credits, retraining the grill on portions and starting a waste log, the next month's variance falls to under 3 per cent, nearly all of it recorded waste. No one was accused, and the margin recovered.

servearound does not hold stock, counts, purchases or recipes, so the inventory variance and shrinkage are worked out in your own stock records; inventory tracking is coming. What it holds is the sales side of the expected use, and the till's own record.

The menu report shows the units sold of every dish over any dates, which, multiplied by your own recipes, gives the expected use for the same period as your counts. On the till, voids and comps carry an optional reason, each person signs in with their own PIN, and payment analytics show voids and comps by member of staff. See Analytics.

Stock that leaves the business without being sold.

Waste, errors, theft and supplier problems.

Through the inventory variance: actual use against expected use, item by item.

Yes. The aim is a small, explained figure, not zero.

Check the counts, the receiving, the recipes and the waste log before considering theft.

Because a wrong count makes the variance wrong.

Locked storage, checked deliveries, every sale through the till, measures, a waste log and regular counts.

Every period, item by item.

What is shrinkage? It is stock that leaves without being sold. Restaurant shrinkage has four causes: waste, errors, theft and supplier problems. Measure it through the inventory variance, actual use against expected use, item by item, and keep stock count accuracy high, because every figure depends on it.

Record waste, check deliveries, match recipes to portions and work through the causes in order before considering theft. When till fraud or theft is the answer, look for patterns and handle it fairly. Simple controls and a monthly review keep shrinkage small and explained.