Does a draft beer keg go bad? Learn keg storage and handling

That craft draft beer, fresh and well poured is a unique experience, no one doubts that. However, behind the enjoyable tasting, there is a series of essential keg care practices that make all the difference when serving. Following good practices ensures your customers drink draft beer in the best possible condition, leave satisfied, come back to the bar and even recommend it to friends.

Storage and handling make all the difference

To preserve the sensory characteristics of draft beer, it is essential to store and handle kegs correctly. This helps preserve aroma, flavor, carbonation – and of course, prevents waste. Less loss means more profit for the bar.

Below, we have gathered valuable tips you can adopt in your establishment. And to start, let's clear up a common question:

Does a draft beer keg go bad?

Yes, it does! After all, we are talking about a living liquid, the result of fermenting sugars found in grains. Both pasteurized and unpasteurized beer have an expiration date – and it is wise to respect it.

But how long does a sealed keg of draft beer last?

If you handle transport, storage and handling correctly:

• Consume unpasteurized draft beer within 45 to 60 days.
• Take advantage of the extended shelf life of pasteurized draft beer, which ranges from 90 to 120 days.

Since the market offers many styles and production methods, treat the draft beer as unpasteurized when in doubt. This approach avoids risks and ensures more safety.

In addition, keep the keg refrigerated at 3 °C or below and use a dispensing system with CO₂ or N₂ to preserve the drink for longer. Remember: the expiration date starts counting on the filling date, not from the moment you connect the keg to the tap.

Before serving, check the label: identify the kegging date and respect the ideal date for consumption. These details make all the difference in the quality of the draft beer you offer.

How to store a draft beer keg?

Pasteurized or not, regardless of the style or type of draft beer keg, stainless steel or PET, or the type of dispensing you use in your bar, it must be stored in a dark, dry and refrigerated place.

This is an essential point for entrepreneurs and enthusiasts who plan to work with draft beer. You need to define, according to your preferences and the possibilities of the physical space, which refrigeration system is most suitable for the needs of your establishment and also for housing your draft beer kegs.

The recommended storage temperature can range between 2 and 4.5 °C; of course, depending on the style of the draft beer, the ideal number may vary. But the tip is: try not to go much above or below this temperature range.

If the temperature rises above that, the beer may get more foam, because a higher temperature releases carbon dioxide very quickly. This causes not only excessive foam but also speeds up the aging process. If the temperature rises above 15 °C, bacteria may develop and, as a result, the beer can spoil very quickly.

On the other hand, when the temperature is kept too low, the beer retains its carbonation, preventing the true flavor and aroma of each glass from being enjoyed. If the temperature drops below -2 °C, your beer is likely to freeze. Obviously, neither you nor we want that.

Talking about preservation and handling also means talking about keg cleaning! Have doubts and questions been fermenting in your head? Relax, come with us and check out this other blog article for the step-by-step process of sanitizing a draft beer keg.

Once tapped, how long does the beer last in the keg?

The time to consume craft draft beer, after the keg has been connected and purged, is short; after all, it is fresh. The ideal period for the liquid inside to be consumed is up to 3 days.

After connecting and purging the keg, craft draft beer should be consumed quickly. The ideal period is around 3 days.

The type of dispensing directly influences this time:

• Kegerators and CO₂ systems help keep freshness for longer – as long as temperature and pressure are set correctly.
• Systems that use oxygen, such as the picnic pump, drastically reduce shelf life. In this case, the draft beer must be consumed within 12 to 24 hours.

Oxygen accelerates the oxidation of the drink, compromising flavor, aroma and carbonation.

Is expired draft beer harmful?

Like any food, beer is made with organic plant ingredients that deteriorate over time. The expiration date of craft draft beer works as a safety measure that protects the consumer experience and also benefits breweries, ensuring that each recipe keeps its original sensory characteristics.

Master brewers dedicate themselves to extending the durability of the drink, taking advantage of some natural benefits of beer itself: alcohol content, low pH and the antimicrobial action of hops. When production and filling follow good practices, the drink contains only the necessary ingredients and as little air as possible.

Drinking expired draft beer rarely causes food poisoning, but the chances of finding a liquid with an altered taste and unpleasant aroma increase a lot. It is common to notice excess sweetness, a cardboard taste, less gas and a “tired” foam.

On the other hand, some beer styles improve with time – these are the so-called cellaring styles. In these cases, aging softens flavors and aromas, providing an interesting experience for those who appreciate fermented drinks in depth.

Now that you have this information in hand, how about putting it all into practice?

Want to learn more about myTapp and how to bring self-pour draft beer technology to your bar or restaurant?

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