Shrinkage
What is Shrinkage?
Shrinkage is the difference between what your inventory should be and what it actually is.
In other words, it’s product that you paid for but can’t account for.
That could be from waste, overpouring, breakage, or theft. Sometimes it’s just bad tracking.
The Formula
Expected Inventory − Actual Inventory = Shrinkage
Example:
You should have 10 bottles of vodka
You count 8
Shrinkage = 2 bottles
You can also look at it as a percentage:
Shrinkage ÷ Expected Inventory = Shrinkage %
Why It Matters
Shrinkage is one of the fastest ways for money to disappear without anyone noticing.
It doesn’t show up clearly in sales. It doesn’t always show up in pricing. It just quietly eats into your margins.
If you’re consistently short on inventory:
your costs are higher than you think
your pour cost is being distorted
your reports stop matching reality
You can run a tight menu on paper and still lose money if shrinkage is high.
Quick Example
Let’s say:
You buy a case of liquor for $300
Based on your recipes, it should produce 120 drinks
You only get 100 drinks out of it
That missing 20 drinks is shrinkage.
It might not be obvious in a single shift. Over time, it adds up fast.
Where Shrinkage Comes From
Most shrinkage isn’t one big issue. It’s small things stacking up.
Common sources:
Overpouring (free-pouring heavy, inconsistent jigger use)
Spillage (busy service, sloppy batching, transfers)
Breakage (bottles, glassware, storage issues)
Waste (expired juice, spoiled ingredients, bad prep)
Theft (internal or external)
Bad counts (inaccurate inventory, missed items, timing issues)
A lot of operators jump straight to theft, but most shrinkage is operational.
What Shrinkage Looks Like in Practice
You usually don’t see shrinkage directly. You feel it.
inventory counts don’t line up
your pour cost is higher than expected
you’re reordering sooner than you should
your numbers look right on paper but not in reality
If things feel off and you can’t explain why, shrinkage is a likely cause.
Common Mistakes
Blaming theft first
Theft happens, but it’s rarely the main driver. Most shrinkage comes from process problems.
Not counting regularly
If you only check inventory once in a while, you can’t spot where the problem started.
Inconsistent measuring
If staff aren’t pouring consistently, your theoretical usage means nothing.
Ignoring prep loss
Batching, juicing, and transferring product all create opportunities for loss.
Letting small losses slide
One heavy pour doesn’t matter. Hundreds of them do.
Shrinkage vs Inventory Variance
These are closely related.
Shrinkage is the actual loss
Inventory variance is how you detect it
Variance shows the gap between expected and actual.
Shrinkage is the reason that gap exists.
Shrinkage vs Pour Cost
Shrinkage quietly pushes your pour cost higher.
If you think a drink costs $2.50 but you’re losing product along the way, the real cost is higher.
That means:
your margins are lower than you think
your pricing might not be covering reality
You can’t trust your pour cost if shrinkage is out of control.
What a “Good” Shrinkage Level Looks Like
Zero is not realistic.
There will always be some loss in a busy bar.
What matters is:
consistency
knowing what’s normal for your operation
catching changes early
If shrinkage suddenly increases, something changed. That’s what you need to find.
One Thing Most People Miss
Shrinkage is usually a systems problem, not a people problem.
If your processes are loose:
pours aren’t measured
inventory isn’t tracked well
prep isn’t standardized
You’ll get shrinkage, even with a great team.
Tight systems reduce shrinkage without needing constant oversight.
When to Investigate Shrinkage
inventory counts don’t match expectations
pour cost is creeping up
product is running out faster than expected
new staff or processes were introduced
you’re scaling or getting busier
If something feels off, don’t ignore it. It rarely fixes itself.
Related Terms
Related Guides from Spec
Bottom Line
Shrinkage is product you paid for but didn’t sell.
It’s easy to overlook because it doesn’t show up cleanly in reports, but it has a real impact on your bottom line.
If your numbers don’t add up, this is one of the first places to look.
