Preserving Your Brew: How Long Does A Keg Of Beer Last?

how long does a keg of beer last

Understanding the lifespan of a Keg is fundamental for serving the best-tasting Beer. In this article, we dig into the elements that impact the lifespan of a Keg and answer the question, “How Long Does a Keg of Beer Last? “. Further, we will also give bits of knowledge into expanding its freshness.

A beer keg’s lifespan varies depending on several factors. This includes the type of Beer, storage conditions, and whether you open it. Although barrels can last several months, you should drink your Beer within one to two weeks of being tapped for maximum freshness.

Reading this article on “How long does a keg of beer last?” gives essential data to Beer fans. And also to those in the cordiality business. Planning and managing inventory, ensuring the freshness and quality of the Beer served to customers, and avoiding waste or serving Beer past its prime all benefit from knowing how long a keg lasts.

What is a Keg, and How Does it Work?

A Keg is a holder for storing and administering refreshments, commonly Beer. It is usually made of steel or aluminum. It comes in different sizes. The most widely recognized is a half Keg, or a regular Keg, which holds roughly 15.5 gallons or 58.7 liters of fluid. Know more about the tyes and life of kegs.

Explanation of a keg

The principal reason for a Keg is to save the quality and freshness of the Beer. While also taking into consideration sample capacity and serving. Kegs are impermeable, keeping oxygen from coming into contact with the Beer. This is pivotal because openness to oxygen can prompt oxidation.


Further, the decay of the Beer, bringing about off-flavors and a reduction in quality, is also essential to consider. To accomplish impermeability, Kegs have a valve framework. The valve, known as a lance, sits on the top or side of the Keg. 

See Also: How Much is a Keg Of Beer 

How Kegs Preserve Beer

Manufacturers load Kegs regularly with Beer at a bottling works or a filling station. Before filling, workers clean the Keg and disinfect it to guarantee the Beer stays away from contamination. This is to create positive tension inside the Keg. This tension keeps the Beer from coming into contact with oxygen and keeps up with carbonation.

how kegs preserve beer

When it comes time to serve the Beer, a tap framework is up with the Keg. The tap framework comprises a handle, a beer line, and a fixture. Pulling the tap handle, the tension inside the Keg powers the Beer to course through the Beer line and out of the institution, permitting it to administer into a glass or compartment. There is more information about how long a keg can help the beer last.

The strain inside the Keg is under control to guarantee a predictable stream rate and forestall extreme frothing. 

Factors Affecting the Freshness of a Keg 

The freshness of a Keg, and hence the nature of the Beer it contains, can have an impact by a few factors. Here are a few key factors that can influence the freshness of a Keg:

Kind of Beer:

Various styles of Beer have differing periods of usability. Beers with higher liquor content, like stouts and barleywines, will generally have extended usability periods. This is contrasted with lighter Beers like ales and wheat Beers.

kind of beer

Furthermore, bounce-forward beers, like IPAs, are more vulnerable to season debasement over the long run because of the breakdown of jump compounds. It’s critical to consider the particular attributes of the Beer while evaluating its freshness.

Capacity Conditions: 

Legitimate capacity conditions are crucial in keeping up with the freshness of a Keg. Temperature, light openness, and strength are critical elements to consider. Beer is to be put away at an excellent and reliable temperature, in a perfect space, somewhere in the range of 35°F and 45°F (2°C and seven °C).

keg in low temperature

Higher temperatures can speed up the maturing system, prompting off-flavors and oxidation. Openness to coordinate daylight or glaring light can break jump compounds, causing a deficiency of smell and flavor. 

Keg Type and Size: 

The sort and size of the Keg can influence the freshness of the Beer. Treated steel Kegs are liked over plastic Kegs as they give better protection and are less porous to oxygen.

factors affecting the freshness

Furthermore, more modest Keg sizes, like 5-gallon (19-liter) or 1/6-Keg Kegs, are consumed rapidly, diminishing the openness time to potential freshness-harming factors. 


A few beers go through sanitization, a cycle that includes warming the Beer to kill microorganisms and balance out the item. Purified beers, by and large, have a more extended period of usability contrasted with unpasteurized or “crude” Beers. In any case, purification can influence the Beer’s flavor profile, prompting a slight loss of character.

beer purification

Not all beers are purified, and unpasteurized Beers might have a more limited timeframe of realistic usability and require more cautious dealing.

Dealing with and Apportioning: 

Legitimate taking care of and apportioning rehearses are fundamental to keeping up with the freshness of a Keg. Kegs should be maneuvered carefully, avoiding over-the-top fomentation and temperature changes during transportation and capacity. While interfacing the Keg with a tap framework, it is significant to guarantee that it is perfect and liberated from any pollutants that could influence the Beer’s quality. Also, ordinary cleaning and support of the tap framework, including beer lines and fixtures, are essential to forestall off-flavors and bacterial defilement.

How Long Does a Keg Stay Fresh?

Users often have these questions “How Long Does a Keg of Beer Last? “or “How long does it stay fresh?”. The freshness and period of usability of a Keg can shift contingent upon a few elements, including the sort of Beer, stockpiling conditions, and whether the Keg has been opened or stays unopened. Here is a fundamental principle regarding the life span of Kegs:

The Lifespan of an Unopened Keg: 

When appropriately put away under ideal circumstances, an unopened Keg can keep up with its freshness for quite a long time. This expects that the Keg is put away at a cool temperature, regularly somewhere in the range of 35°F and 45°F (2°C and seven °C), and is safeguarded from light openness.

lifespan of an unopened keg

Factors, for example, the Beer style and whether the Beer has been sanitized, can likewise influence the period of usability of an unopened Keg.

The Lifespan of an Opened Keg: 

When a Keg has been tapped, and the Beer starts to stream, the freshness and nature of the Beer begin to decline. When presented to air, the Beer is in danger of oxidation, which can bring about off-flavors and a smell deficiency. For the most part, it is prescribed to polish off the Beer within a short period after tapping the Keg, preferably within one to fourteen days.

lifespan of an opened keg

Nonetheless, this can shift contingent upon the kind of Beer, stockpiling conditions, and using CO2 or nitrogen gas to keep up with carbonation.

Contrasts in  Life Span Between Beer Types: 

Different beer styles have changed usability periods because of their attributes and fixings. Here are a few general contemplations:

  • Like ales and pilsners, lighter beers ordinarily have more limited timeframes of realistic usability contrasted with heavier, malt-forward Beers. Lighter beers frequently have a crisper and more fragile flavor profile, which can be more helpless to debasement over the long haul.

life span between beer types

  • Like IPAs and pale beers, Jump Forward Beers are known for their new and dynamic bounce smells and flavors. Nonetheless, these jump mixtures can generally corrupt rapidly, bringing about a deficiency of fragrance and an adjustment of taste. 
  • Beers with higher liquor content, like stouts, barleywines, and Belgian Beers, will generally have more extended usability periods. The liquor is additive, assisting with inhibiting the development of microscopic organisms and expanding the Beer’s freshness. 

See Also: How Many Beers Are In A Case?

How to Store a Keg for Maximum Freshness 

To store a Keg for the most extreme freshness and to protect the nature of the Beer, keeping these guidelines is significant:

  • Temperature Control: Store the Keg at a reliably cool temperature somewhere in the range of 35°F and 45°F (2°C and seven °C).

store the keg at a reliably cool temperature

Please avoid temperature changes as they can speed up the maturing system and result in off-flavors. Get the Keg far from wellsprings of intensity or direct daylight.

  • Stay away from Light Openness: Light, remarkably UV light, can adversely influence the nature of the Beer. Store the Keg in a dim spot or cover it with a Keg cover or other light-obstructing material to forestall light openness.
  • Upstanding Capacity: Store the Keg upstanding to forestall any unsettling influence or fomentation of residue.

upstanding keg

This is particularly significant for unfiltered or bottle-adapted beers, which might have yeast residue at the lower part of the Keg.

  • Limit Oxygen Openness: Oxygen can prompt the oxidation and decay of Beer. Guarantee that the Keg’s valve framework is impenetrable and appropriately fixed. Try not to vent the Keg superfluously and break it when presented to the air.
  • Keep up with Carbonation: To save the carbonation in the Beer, keep the Keg compressed with CO2 or a combination of CO2 and nitrogen. Consistently check the tension levels and guarantee that the Keg is appropriately associated with a CO2 gas supply.
  • Clean Tap Framework: Before interfacing the Keg with a tap framework, guarantee that the tap lines, fixtures, and parts are perfect and liberated from any impurities.

keg tapConsistently spotless and clean the tap framework to forestall off-flavors and bacterial development.

  • Restricted Administering: When you tap a Keg, it loses freshness. Drinking the Beer within fourteen days after tapping is beneficial to expand the novelty of the Beer.

tapping a beerLimit the recurrence of tapping and avoid drawing over-the-top beer measures if you won’t consume the Beer soon.

  • Ordinary Revolution: If you have different Kegs, practice an earliest in, earliest out (FIFO) turn framework. Drink the most seasoned Keg first to guarantee freshness and keep the Beer from maturing exorbitantly.

By observing these stockpiling rules, you can keep up with the freshness and nature of the Beer in a Keg for a drawn-out period, permitting you to partake in the Beer at its ideal. Make sure to counsel a particular suggestion the distillery gives to their specific Beer.

Signs Your Keg Beer Might Be Past Its Prime 

There are a few signs that can demonstrate that your Keg Beer might be over the hill and no longer at its best quality:

  • Taste Changes: One of the most observable signs is an adjustment of taste. The Beer might foster off-flavors or a flat taste. It could lose its freshness, balance, or the unmistakable flavors available when the Beer was new. The taste can become dull, level, or even upsetting.
  • Appearance Changes: Obvious signs can likewise show that the Beer is over the hill. The Beer might seem overcast, dim, or have a strange variety.

spoiled beer It could have unreasonable sedimentation or flocculation, bringing about a cloudy or unappealing appearance.

  • Smell Changes: The fragrance of the Beer can be a decent sign of its freshness. Assuming the Beer has a perceptibly unique or upsetting smell, like a harsh, stale-smelling, or oxidized fragrance, it might demonstrate that the Beer is over the hill. The Beer’s odor can become quieted, coming up short on the dynamic and welcoming aromas available when it was new.


We are presenting you with some FAQS.

How long does a keg of beer last?

On average, a standard 15.5-gallon keg can last around two to three weeks if stored properly and served using a pressurized system.

How long does an opened Keg of beer last?

When you tap a Keg, and the beer starts to stream, drinking the Beer within fourteen days for ideal freshness is beneficial. After this period, the Beer's quality might decline because of variables like oxidation and loss of carbonation. Be that as it may, the genuine life span can differ in light of elements, for example, the beer style, capacity conditions, and gas utilization to keep up with carbonation.

Can a Keg of Beer turn sour?

Yes, the Keg of a beer can lose its freshness and quality over the long run. Factors like openness to oxygen, temperature changes, and light can bring about off-flavors, oxidation, and an old taste. It's ideal to drink the beer inside the suggested period for the best taste insight.

Does the sort of Beer influence how long a Keg lasts?

Yes, the kind of beer can influence the timeframe of the realistic usability of a Keg. Lighter Beers, jump-forward beers, and unpasteurized/crude beers usually have more limited periods of usability than heavier, malt-forward Beers and sanitized Beers. Beers with higher liquor content will generally have longer timeframes of realistic usability because of the additive impacts of liquor.

How can I increase the lifespan of a Keg of beer?

To expand the lifespan of a Keg of Beer, putting it away under ideal conditions is significant. Keep the Keg refrigerated at a steady temperature somewhere in the range of 35°F and 45°F (2°C and seven °C), shield it from light openness, limit oxygen contact by keeping the Keg fixed and compressed, and keep a spotless tap framework.


In conclusion, the answer to “How long does a keg of beer last” is relatively easy. The lifespan of a Keg of Beer relies upon different factors. For example, the sort of Beer, stockpiling conditions, and whether you open it or not. A brand new Keg with its seal on can keep going for a very long time whenever put away appropriately, while Kegs with no seal should be consumed within fourteen days for ideal freshness. Signs that a Keg might be over the hill remember taste, appearance, and smell changes. To boost the lifespan of a Keg, it’s essential to store it at a cool temperature, shield it from light, limit oxygen openness, and keep a spotless tap framework.