Draft Yield

What draft yield actually means

Draft yield is how many actual pints you sold from a keg compared to how many pints the keg should have produced. A half-barrel keg holds 1,984 ounces, which is 124 16-oz pints at perfect yield. But nobody gets 124 pints. The real-world yield is usually 100 to 115.

The difference is foam, line cleaning, over-pouring, spills, and tap waste. Every ounce of that is shrinkage.

How it is used on the floor

Managers calculate draft yield per keg. Take the POS sales of a specific beer, divide by the number of kegs used in that period, and compare to the theoretical 124 pints. If you pulled 2 kegs and sold 200 pints, your yield was 81 percent. That is bad. Industry benchmark is 85 to 95 percent.

A good draft program lives and dies on yield. Low yield means money flowing down the drain literally, because every wasted ounce of beer is cash.

The math

Theoretical pints per half barrel: 124 (at 16 oz each) Draft Yield % = (Pints sold / Theoretical pints) x 100

Example: Half barrel of Bud Light. POS says you sold 108 pints before the keg blew. Yield is 108 / 124 = 87 percent. That is healthy. You lost 16 pints to foam and waste. Acceptable.

If the same keg only sold 95 pints, yield is 76.6 percent and you lost 29 pints. At $6 a pint that is $174 of lost revenue from one keg. Across 10 kegs a week, that is $1,740 a week, or over $90,000 a year.

Keg sizes and theoretical yields

• Half barrel (1/2 bbl): 1,984 oz = 124 pints
• Quarter barrel (1/4 bbl): 992 oz = 62 pints
• Sixth barrel (1/6 bbl): 661 oz = 41 pints
• Pony keg: 992 oz = 62 pints

Different glassware changes the math. A 20 oz pint glass yields fewer pints per keg than a 16 oz glass. Some bars use 14 oz “cheater” pints on purpose to boost yield.

What drives yield loss

Temperature problems (too warm causes foam). Improper CO2 pressure. Dirty beer lines. Worn faucets. Over-pouring by the bartender. Spills on the floor. Line cleaning waste. Bad keg tapping.

Most yield problems are fixable with better maintenance and better training. A weekly line clean and quarterly tap inspection saves thousands.

How PourIQ handles it

PourIQ tracks actual pints sold per keg and compares to theoretical yield in real time. You see which beers, which taps, and which shifts are losing yield, so the fix goes from generic “clean the lines” to specific “tap 3 is losing 12 percent on Tuesdays.” That is where real savings happen.