Most bar managers calculate pour cost wrong. Not because they can't do math — because they're using the wrong numbers. They divide what they paid for a bottle by how many drinks it makes, and call that the pour cost. It isn't.
The real pour cost accounts for three things your simple calculation ignores: yield loss (you don't use the whole lime), prep waste (simple syrup loses volume), and free-pour variance (your bartenders overpour by 10-20%). When you fix these three gaps, your pour cost jumps by 15-30%.
The basic formula (and why it's not enough)
The textbook formula: Pour Cost % = (Ingredient Cost ÷ Menu Price) × 100. If ingredients cost $3 and you sell for $15, your pour cost is 20%. Most bars target 18-24%.
The problem: 'ingredient cost' almost always uses the as-purchased price. You bought limes at $0.63 each. Your Daiquiri uses half a lime. Cost: $0.31. Right? Wrong.
Step 1: Account for yield loss (AP vs EP)
AP means 'as purchased.' EP means 'edible portion.' A lime yields approximately 1oz of juice. Your cost per ounce of lime juice is $0.63 — not $0.21 (dividing the lime into three 'portions'). A bunch of mint gives usable leaves from 60% of stems. A pineapple loses 40-50% to skin and core.
When you calculate ingredient costs using AP prices instead of EP prices, you're understating the true cost of every drink with fresh ingredients.
Step 2: Account for house-made prep costs
Your simple syrup isn't free. A 2:1 rich syrup uses 2 cups sugar (~$0.80) and 1 cup water, yielding roughly 1.75 cups after evaporation and transfer loss. Now multiply across every house-made prep: orgeat, grenadine, shrubs, infusions. Each feeds into multiple recipes. When almond prices change, every cocktail with orgeat should update — but doesn't.
Step 3: Account for free-pour variance
Studies show bartenders who free-pour overpour by 10-20% on average. A 2oz pour becomes 2.2-2.4oz. On a $40/bottle spirit, that's $1-2 per drink in unrecovered cost. Build a 15% variance factor into your cost model.
Real example: The $2.40 Margarita that costs $3.85
Standard Margarita: 2oz tequila, 1oz Cointreau, 1oz lime juice, 0.5oz simple syrup, salt rim.
Quick math: Tequila $1.80 + Cointreau $0.85 + Lime $0.31 + Simple $0.05 + Salt $0.02 = $2.40. Pour cost at $14 menu price: 17.1%.
Real math: Tequila with overpour $2.07 + Cointreau with overpour $0.98 + Lime juice yield-adjusted $0.63 + Simple syrup prep-adjusted $0.12 + Salt $0.02 + Garnish $0.03 = $3.85. Real pour cost: 27.5%.
The gap: $1.45 per drink. At 50 Margaritas per night: $72.50 daily, $2,175 monthly, $26,100 annually. From one drink.
Important context: this is an illustrative example showing how yield loss, prep waste, and free-pour variance compound. Your actual gap will vary by recipe, team, and measurement discipline. Industry data from 30,000+ bar audits (Bar-i, 2009-2025) shows the average bar loses 15-20% of poured product to shrinkage — overpouring, waste, unrecorded comps, and measurement error. For a bar doing $40K/month in beverage revenue, that 15% translates to roughly $6,000/month or $72,000/year in total shrinkage. The per-drink gap varies, but the aggregate loss is well documented.
How to fix your pour cost calculation
- Calculate EP cost for every fresh ingredient
- Cost every house-made prep from its components with yield loss
- Add a 10-15% variance factor for free-pour items
- Update costs when supplier prices change — automatically
- Review pour costs monthly, not annually — industry benchmarks show bars that review monthly reduce shrinkage by 3-5% (Bar-i client data)
How methodus handles this
methodus calculates true pour cost automatically. Set yield percentages per ingredient. Cost house-made preps from their components. The system cascades costs through every recipe — change the price of sugar and every syrup-based cocktail updates. The pour cost on a methodus spec sheet is the real number.
