Does Beer Taste Better on Tap? Yes, Usually. Here Is Why, and When It Does Not

Updated September 2026 by Brad Lugar, owner of Steel City Tap Co., Birmingham, AL.

Quick answer: Usually yes. A keg is opaque, so the beer never gets light struck. It is stored cold and pours cold. The bar sets the carbonation with the gas pressure instead of the packaging line. And a keg that kicks in two weeks is fresher than a can that sat in a warehouse for two months. Draft tastes worse than packaged in exactly one situation: the bar does not clean its lines or lets kegs sit. Then the can wins.

We make tap handles in Birmingham, AL, so we spend our time on the draft side of the business. Here is what changes when the same beer goes into a keg instead of a can, and what a bar has to do to keep the advantage.

Why draft beer tastes better

No light

Light hitting hop compounds in beer creates the skunk flavor, and it takes minutes in sunlight, not days. Green and clear bottles get hit worst, brown bottles slow it down, cans and kegs block it completely. A keg is a steel can the size of a small refrigerator. The beer inside has never seen daylight.

Temperature

A keg lives in a walk-in at serving temperature from the day it is delivered. Packaged beer rides in a truck, sits on a dock, gets shelved warm, and gets chilled again. Every warm cycle ages the beer. Draft skips all of it.

Carbonation set at the bar

Draft carbonation is held by CO2 pressure on the keg, tuned to the line length and the temperature. A well set system pours the beer at the carbonation the brewer intended, with a real head that carries aroma. Packaged beer is carbonated once at the brewery and then loses a little every day.

Turnover

A half barrel is about 124 pints. A bar that pours 60 pints of a beer a week kicks the keg in two weeks. That beer is younger than almost anything on a grocery shelf.

The glass

Half of taste is smell, and a can does not let you smell anything. Draft is served in a glass by definition. A clean glass with the right shape for the style, a tulip for a Belgian, a pint for an IPA, does more for flavor than most people expect.

When draft tastes worse

Dirty lines. Beer lines grow yeast, bacteria, and beer stone, and the result is sour, buttery, or musty beer that has nothing to do with the brewery. The industry standard is a line cleaning every two weeks. A bar that skips it is pouring a worse beer than the can of the same brand in the cooler behind it.

Old kegs. A slow tap that takes two months to kick is serving oxidized beer by the end. A bar with 40 taps and 20 that barely move is not a draft bar, it is a warehouse with faucets.

Warm towers. A tower with no glycol or cold air on it warms the last few feet of beer in the line. The first pour foams, the bartender dumps it, and the next pour is flat.

What this means for a brewery

Draft is where your beer tastes best, which makes the tap wall your best sales floor. The handle is the only thing on that wall with your name on it, and it is the reason the customer orders your beer instead of the one next to it. A custom tap handle that reads from across the room is the difference between "I'll have the IPA" and "I'll have yours."

See what breweries are putting on the wall in our custom tap handle gallery, or request a quote and we will start with a sketch.

Frequently asked questions

Why does draft beer taste better than bottled beer?

The keg blocks light, stays cold from delivery to pour, holds carbonation under CO2 pressure, and turns over in weeks instead of months. Bottles, especially green and clear ones, can get light struck and warm cycled before they are opened.

Can draft beer taste worse than canned beer?

Yes, when the bar does not clean its lines every two weeks, lets slow kegs sit for months, or runs a warm tower. Then the can of the same beer is fresher and cleaner.

How often should beer lines be cleaned?

Every two weeks is the industry standard. Skipping it produces sour, buttery, or musty off flavors that get blamed on the brewery.

How many pints are in a keg?

A US half barrel holds about 124 sixteen ounce pints. A sixtel holds about 41.

Does the glass change how draft beer tastes?

Yes. Aroma is most of flavor, and a clean glass shaped for the style releases it. A dirty glass kills the head and mutes the beer.