Draught Beer: Your Most Expensive Waste Stream. Here’s the Maths.
Updated: 1 day ago
Draught Beer Series: Part One
This is Part One of a three-part series. Read parts two and three here...
Draught beer should be one of the most profitable lines on your P&L. The margins are there. The volume is there. Customers order it all night without prompting. So why are so many operators pouring a significant chunk of that profit straight down the drain?
The Losses Are Small, That’s the Problem
Draught beer loss doesn’t announce itself. It shows up as kegs that empty a little faster than expected, a cost of sale running slightly higher than it should, and a variance figure that gets accepted at the monthly review because nobody can pin it on anything specific.
Small losses per pour, across every tap, across every shift, across every week of the year. That’s how it works.
What 1.5 Pints a Tap Costs
Here’s what it actually costs. A venue with ten taps losing 1.5 pints per tap per day is losing 15 pints daily. That’s 105 pints a week. Over a year, 5,475 pints. At an RSP of £4.94 a pint, that’s £27,000 a year. Gone. Not stolen, not written off. Just lost in the gap between what the system should produce and what it actually does.
And 1.5 pints per tap per day is not an extreme figure. For venues without active management of their draught operation, it’s closer to normal.
Check Actual Usage Against Sales First
Before you start adjusting cellar temperatures or calling out technical services, do this: compare your actual keg usage against your POS sales data. Kegs emptying faster than expected can mean a system issue, but it can equally mean over-pouring, unauthorised pours, or skewed stock counts that throw up inaccurate variances.
Fix the tracking first. Then fix the equipment. In that order. If you don’t, you’ll sort half the problem and wonder why the numbers still don’t add up.
What’s Actually Driving the Loss?
Draught beer loss comes from nine places: beer temperature, flow rate, gas and pressure, line cleanliness, time on sale, line condition, FOB detectors, glassware, and faulty equipment. Most venues are losing on more than one at the same time, and because each loss is small, none of them looks like an emergency on its own.
That’s what makes draught loss so expensive. It’s not a crisis. It’s a slow, consistent drain that never quite makes it to the top of the agenda.
In the next post I’ll cover each of the nine system causes in detail: what’s going wrong, why it matters, and what it takes to fix it.
I'm David Holden. I've spent 30 years working across hospitality audit and operations, helping hotels, pubs, restaurants and bars identify where profit is being lost and put practical controls in place to stop it.
