What is Overpouring?
Overpouring is pouring more of an ingredient than the recipe calls for, usually the spirit, so each drink uses more product than you priced it for.
It's one of the most common causes of Shrinkage behind a bar. A quarter ounce at a time doesn't feel like much. Across a week of service, it adds up to bottles.
What It Costs
(Actual Pour − Spec Pour) × Cost per Ounce × Drinks Poured = Cost of Overpouring
Say the spec is 1.5 oz of a spirit that costs $0.90 per ounce, and the real pour runs 1.75 oz:
Extra per drink: 0.25 oz × $0.90 = $0.23
At 200 drinks a week: $45
Over a year: $2,340, on one spirit at one well
It also moves your Pour Cost. On a $10 highball, the spirit cost goes from $1.35 (13.5% of the price) to $1.58 (15.75%). The extra quarter ounce is 17% more product than you priced.
Why It Happens
Free pouring: counting a pour by eye or by rhythm is less consistent than measuring it, especially when it's busy.
Heavy-handed jiggering: filling past the line, or letting the jigger spill over into the tin.
Inconsistent tools: different jigger models at different stations, or worn jiggers with hard-to-read lines.
Generosity: "a little extra" for regulars, friends, or a better tip.
Specs nobody can find: if the recipe isn't easy to look up, people pour from memory.
Doubles and upgrades poured but not rung: the guest gets a double; the POS records a single.
How to Prevent It
Measure every pour. Jiggers at every station, used on every drink.
One jigger model everywhere. Then a spec measures the same in every well.
Run pour tests. Have each bartender pour into a measuring cup periodically. It's quick and shows who's running heavy.
Make specs easy to find. Accurate recipes that every bartender can look up mid-shift.
Ring what's poured. Every double, upgrade, and extra shot gets rung in.
Watch Inventory Variance weekly. A spirit running consistently over is often an overpour problem.
Common Mistakes
Treating it as a character issue Most overpouring is habit and process, not dishonesty. Fix the tools and the training first.
Only watching expensive spirits Well spirits pour the most volume. A small overpour there usually costs more than on a top-shelf bottle.
Ignoring the rest of the recipe Overpoured syrups and liqueurs change the drink's balance, not just its cost.
Fixing it once Pours drift. Pour tests and variance checks need to be routine, not a one-time cleanup.
Overpouring vs Shrinkage
Overpouring is one cause: too much product in the glass.
Shrinkage is the total loss from every cause: overpours, spills, waste, breakage, theft, bad counts.
Overpouring is often the biggest piece of shrinkage, and one of the easiest to fix.
FAQ
Is free pouring always less accurate than using a jigger? A well-trained free pourer can be close, but accuracy slips with fatigue and volume. A jigger makes every pour measurable and every bartender consistent.
How much does overpouring cost a bar? It depends on volume, but a quarter ounce over on a single busy well spirit can cost more than $2,000 a year.
How do I know if my staff are overpouring? Run pour tests and track inventory variance by product. If a spirit keeps running over and you've ruled out counting and POS errors, overpouring is the likely cause.
Does overpouring affect the drink itself? Yes. Extra spirit or syrup changes balance, strength, and dilution, so the guest gets a different drink than the spec.
Do This in Spec
Spec puts every recipe in the mobile app, so the whole team pours from the same spec instead of memory. Paired with Spec's stock counts, you can see which products are running over.
Related Terms
Related Guides from Spec
Bottom Line
Overpouring is the quietest way a bar loses money. Measure every pour, use the same tools everywhere, and check your variance weekly. Most of it disappears once pouring stops being a guess.
