NA Draft Line Cleaning: Care for a Non-Alcoholic Tap

To care for a non-alcoholic draft line, give the NA keg its own tap, line and coupler, and clean that line at least every 14 days, the Brewers Association's minimum for any draft line, with no stretching for a slow week. Taste the first pour every day the tap is open, and pull any pint that smells sour or buttery.

The sections below cover why NA lines spoil more easily, the cleaning schedule, what a cleaning costs in beer, temperature, what to ask the brewery, the signs of an off pint, and a line card you can copy.

Why does an NA draft line need more care than the rest of the wall?

An NA line needs more care because the beer in it has little or no alcohol, and alcohol helps hold spoilage microbes back. A study in the Journal of the Institute of Brewing, published February 26, 2026, calls ethanol "an antimicrobial hurdle" and says taking it out leaves no- and low-alcohol beer "more susceptible to spoilage by microorganisms."

The researchers sampled draught no- and low-alcohol beers in 12 pubs in Nottingham, England: 53 samples across 17 brands. They rated 54.7% of the samples unacceptable because of microbial growth. That's UK-sampled data from UK pubs, so treat it as a warning, not a measure of US bars or of your system.

The authors split the causes in two. The beer's makeup is the maker's job, and they recommend a pH below 4.0. The dispense side is yours: they name the hygiene of the equipment and the rate of beer throughput, and they call for "robust and regular cleaning regimes." A slow NA handle does badly on throughput, because the same beer sits in the line longer.

More NA is going through US draft lines, too. In a May 7, 2026 report on US on-premise draft, NielsenIQ said the share of the no and low alcohol alternatives category "nearly doubled in 2025."

If you're still deciding whether NA belongs on a tap at all, the keg or cans decision has its own post. This one assumes the keg is coming.

Should NA share a line or a coupler with beer?

No. The NA keg gets one tap, one line and one coupler, and it keeps them for as long as you pour NA.

• Never share a line between NA and beer. Beer left in a shared line ends up in the first NA pour, and that guest ordered NA because they don't want alcohol. Stopping wrong NA pours covers the bartender's side of that mistake.
• Don't move the NA keg from tap to tap to make room. Each move puts a coupler that has been on other kegs onto the NA keg.
• When the NA keg runs out, don't park a beer on its line. Cover the handle, and clean the line before the next NA keg goes on.
• Start NA on a line with a clean history. The Brewers Association's Draught Beer Quality Manual says lines that poured root beer, flavored beers, margaritas, wines or ciders may need replacing, because those drinks can permanently contaminate a line.

How often should you clean an NA draft line?

Clean the NA line at least every 14 days, and never let it slip past that. The Brewers Association manual sets 14 days as the minimum cycle for every draft line and says its schedule holds "no matter how much or how little beer is dispensed through the system." Its pre-shift checklist gives a range of every 7 to 14 days.

Here is the manual's schedule, with what it means for the NA tap:

Before the first NA keg goes on, sit down with whoever cleans your lines, staff or a cleaning service. Ask them, and ask the brewery or distributor, whether NA should run on a 7 day cycle. If the answers differ, go with the more frequent one.

Then write the plan on a card by the tower: the interval, who cleans, and what happens when a cleaning gets missed. The answer to that last one is that the NA handle gets covered until it's done. The manual also recommends a cleaning log the retailer, the wholesaler and the brewer can all see, showing a cleaning within the last two weeks.

If you clean the whole wall before a big game, fold the NA line in, but don't let the game calendar set its schedule. Game night keg prep covers the day-before checks for the rest of the wall.

What does each cleaning cost you in NA beer?

Each cleaning costs you the NA beer sitting in the line, which on a long-draw system can be more than a pint. The Brewers Association manual notes that line cleaning means "discarding beer equal to the volume of the beer lines themselves," and its Table 4.1 lists how much each common line size holds per foot.

Here is a worked example for a long-draw NA line. The lengths are examples, so measure your own. The manual says jumper lines typically run 5 or 6 feet of vinyl, and it gives the per-foot volumes as examples, telling you to check exact values with your equipment maker.

On a 14 day cycle, that line gets cleaned 26 times a year. 26 times 22.2 ounces is 577 ounces, about 36 pours of 16 ounces. The same manual lists a sixth barrel at 660 fluid ounces, so a year of NA cleanings costs a little less beer than one sixth barrel.

A 7 day cycle doubles that: 52 cleanings come to 1,154 ounces, about 72 pours, or roughly 1.7 sixth barrels a year. Price it with your own cost per ounce from the keg invoice math before you decide.

A direct-draw setup is cheaper to clean. Five feet of 3/16 inch vinyl holds under 1 ounce, so each cleaning costs almost nothing in beer.

What temperature should the NA line pour at?

Pour NA as cold as the rest of the wall unless the brewer asks for something else. The Brewers Association manual wants cooler air and beer at 36 to 38°F, with every keg at or below 38°F when it's served. It warns that even a few degrees above 38°F can cause pouring problems, especially excessive foaming.

For glycol-cooled systems, the manual's pre-shift check lists a glycol bath temperature of 29 to 32°F. Leave that number to your draft tech.

Lallemand Brewing, a yeast and brewing supplier, says NA beer "should be kept cold post-fermentation and throughout its packaged shelf life, much like regular beer." Keep the NA keg in the cooler from delivery to tapping, and don't leave it in dry storage waiting for a free coupler.

Ask your draft tech to check what the NA tap actually pours at, and ask the brewery what temperature and pressure they want. If the line runs outside their range, have the tech adjust it.

What should you ask the brewery or distributor before the first NA keg?

Ask how they want their NA beer stored, served and cleaned for, and write the answers on the line card with the date you asked. NA beers aren't all made the same way. The JIB authors' advice to producers, a pH below 4.0, little leftover sugar, and stabilizing the beer before packaging, gives you fair questions to put to the rep.

• How should the keg be stored before it's tapped?
• Once it's tapped, how long do they want it on the line before you pull it?
• What serving temperature and pressure do they recommend?
• How often do they want the line cleaned?
• Is the beer pasteurized or otherwise stabilized? Lallemand calls pasteurization "the best method to ensure product stability."

Don't borrow a time window from another brand's keg. What holds for one NA beer tells you nothing about the next. A taproom pouring its own NA can ask the brewers down the hall, and brewery NA beer in the taproom covers that case.

What are the signs of an off NA pint?

An off NA pint usually smells sour, vinegary or buttery, or feels slick in the mouth. Table 8.4 in the Brewers Association manual ties those faults to bacteria that grow in draft systems:

The manual calls diacetyl the most common off-flavor tied to dirty draft systems, and most likely when cleaning stretches past the two-week cycle. Acetobacter usually starts on dirty drains, spill trays, bar tops and bar rags, then spreads to the faucets. That's why the faucet comes apart at every cleaning.

Also pull a pint that's hazier than this beer usually pours, has bits floating in it, or has a film on top. Foam that won't settle on a line that usually pours fine is worth a second look too.

Tasting catches problems late. The manual points out that bacterial contamination "begins long before it can be detected by human senses," so a clean-tasting pour doesn't prove a clean line. Only the cleaning schedule keeps it that way.

What should staff do when the NA pour tastes off?

Staff should pull the pint, keep the guest on NA, and take the tap out of service until the line is cleaned. The check itself is daily: before the first guest, someone pours 1 to 3 ounces, as the Brewers Association's at-the-tower checklist suggests, and smells and tastes it.

When that pour, or any pour, is off:

1. Pull it. Don't serve it, and don't ask the guest to try it and see.
2. Offer another NA option, such as a canned NA beer from the cooler.
3. Tell the manager on duty, and write the time and what you noticed on the line card.
4. Cover the handle and take the NA beer off the board.
5. Clean the line. The manual says to flush with water until the rinse water's pH matches your tap water. Then the manager or the cleaner tastes the first pour before the handle is uncovered. If it still tastes off, the keg comes off and you call the distributor.

On a TapDisplay board, any staff member can do step 4 from a phone by marking the beer sold out. On a bar or brewery menu it stays on the board struck through and labeled KICKED; the word comes from the business type, and coffee or wine menus say SOLD OUT. KICKED isn't the exact story for a line that's down for cleaning, but it stops guests ordering it. Each connected screen checks for changes every 30 seconds, so the change shows within about 30 seconds, and the activity log records who made it.

What does an NA line-care card look like?

An NA line-care card fits on one sheet and holds the brewery's answers, the cleaning plan, and the daily check. Copy this one, fill in the blanks, and keep it by the tower or next to the cleaning log in the cooler.

NA LINE CARE: TAP ___
Beer: ______________   Keg tapped (date): ______
Brewery's guidance on time tapped: ____________ (asked ______)
Serving temp and pressure from brewery: ____________
Cleaning interval (14 days or less), agreed with ________: every ___ days
Who cleans: ______________
Missed cleaning: handle covered, beer off the board until done

DAILY, BEFORE OPEN
[ ] Pour 1 to 3 oz; smell and taste it
[ ] Clear as usual? Normal foam? No sour, vinegar or buttery notes?
[ ] Anything off: pull it, cover the handle, off the board, tell the manager

EVERY CLEANING
[ ] Line cleaned, faucet taken apart, coupler scrubbed (date, initials)
[ ] Rinse water pH matches tap water
[ ] First pour tasted before the handle is uncovered

EVERY 3 MONTHS: acid clean   EVERY 6 MONTHS: coupler taken apart

EVERY NEW KEG
[ ] Same tap, same line, same coupler; no beer on it since last cleaning
[ ] Brewery's handling notes written on this card
[ ] Pour temperature checked against the brewery's range

The bottom line

An NA line has no alcohol helping it, so it gets its own tap, line and coupler and a cleaning at least every 14 days, slow week or not. Taste the first pour every day and pull anything sour, vinegary or buttery. On the example long-draw line, a full year of cleanings costs less beer than one sixth barrel.