How Long Will Coffee Last In Mylar Bags

  • By: Rob
  • Date: November 6, 2022
  • Time to read: 6 min.
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Mylar bags are a great way to store coffee. They keep it fresh and tasting good for a long time. But how long will coffee last in mylar bags? And how do you know when the coffee is no longer safe to drink?

Coffee that is properly stored in mylar bags can last up to a year. Ground coffee will last up to 6 months while coffee beans will last up to a year. Instant coffee will last up to 20 years. Keeping the sealed mylar bags in a cool and dark place will also help the coffee keep longer.

When mylar bags are used correctly they can keep your coffee fresher for longer. In this blog post, we’ll discuss all that you need to know about storing coffee in mylar bags.

How Long Will Coffee Last In Mylar Bags

If you’re like most coffee drinkers, you probably go through a lot of beans. And if you’re trying to save money or cut down on waste, you might be wondering how to store your coffee so it will last longer.

One option that I love to use is to put it in a Mylar bag (Amazon link). Mylar is a type of plastic that is known for its moisture-resistant properties.

It’s often used to package food, and it can help to keep your coffee beans fresh. Most experts recommend storing coffee in a cool, dry place, and a Mylar bag can help to create that environment.

Just make sure the bag is tightly sealed; otherwise, your beans will start to lose their flavor. If you follow these tips, your coffee should stay fresh for months.

The table below will show you exactly how long will coffee last in mylar bags.

  • Ground Coffee – 6 months
  • Coffee Beans – 12 months
  • Instant Coffee – 10 years

How Long Will Ground Coffee Last In Mylar Bags

It’s generally accepted that ground coffee will last around two weeks in an airtight container at room temperature. You can extend its shelf life by storing it in a cool, dark place like a pantry or cupboard.

However, if you’re looking for long-term storage, your best bet is to put it in the freezer. Vacuum-sealed mylar bags are ideal for this purpose, as they protect against both oxygen and moisture.

Even without freezing it, mylar bags are a great method to store ground coffee to keep it fresh for up to 5 months, or maybe even longer.

When stored properly, ground coffee will retain its quality for up to six months in the freezer. After that, it may start to lose its flavor and aroma.

So if you’ve got a stockpile of coffee beans that you want to keep fresh for the long haul, mylar bags are the way to go.

How Long Will Coffee Beans Last In Mylar Bags

Coffee beans have a longer shelf life when compared to ground coffee, in a mylar bag it will stay fresh for 6 to 9 months. If you store coffee beans in mylar bags you get a safe storing environment that protects the coffee from all the factors that make it go off like light, humidity, and oxygen.

If you’re a coffee-lover, you know that fresh beans make all the difference in the flavor of your cup of joe. But how can you be sure your beans are staying fresh?

One way to store them is in Mylar bags. But how long will coffee beans last in Mylar bags?

Mylar is a type of plastic that is used in food storage because it is moisture-resistant and oxygen-resistant. That means it can help keep your coffee beans fresh by keeping out moisture and preventing coffee beans from oxidizing and going stale.

However, it’s important to note that while Mylar bags can help prolong the freshness of your beans, they won’t keep them fresh forever. If you want, you can be accurate with how many coffee beans per cup you’ll need to store in a bag.

mylar bag

As a general rule of thumb, coffee beans will stay fresh in a Mylar bag for about 6-12 months.

Of course, this will vary depending on how you store the bag (in a cool, dry place or in the freezer, for example) and the type of bean. darker roasted beans, for example, tend to have a longer shelf life than lighter roasts.

So if you’re looking for a way to keep your coffee beans fresh, consider storing them in Mylar bags.

How To Store Instant Coffee In Mylar Bags

To use a mylar bag, simply place your instant coffee in the bag and seal it shut. Then, store the bag in a cool, dry place. When you’re ready to use the coffee, just add hot water and enjoy! Instant coffee that is stored in this way will last years, some say it will stay good for 20 years.

If you consider yourself a coffee-lover, you will know that there’s nothing quite like a freshly brewed cup of joe.

However, sometimes you don’t have the time to brew a pot, or you might want to take your coffee on the go. In these cases, instant coffee can be a lifesaver. But how should you store it to ensure that it stays fresh?

The best way to store instant coffee is in mylar bags. Mylar bags are made of a durable, heat-resistant material that will keep your coffee fresh for months.

Plus, they’re easy to seal, so you won’t have to worry about spillage.

What Is The Best Way To Store Coffee Grounds Long Term

There are a few different ways to store coffee grounds, but the best way for long-term storage is to seal the coffee grounds in a mylar bag with oxygen absorbers and then freeze it. When you need it again you can let it defrost and then make it out of the bag to use it.

Anyone who is a regular coffee will go through quite a lot of coffee grounds. And if you hate waste, you might be wondering what the best ways are to store coffee grounds long term.

The good news is that coffee grounds can be stored long-term, and there are a few different ways to do it.

One option is to freeze them. This will prevent them from going bad, and they’ll be ready to use whenever you need them. Just make sure to seal them tightly in a freezer-safe bag.

Another option is to dehydrate the grounds. This will make them last even longer, and it will also make them easier to use later on (because you won’t have to thaw them out).

Just spread the grounds out on a baking sheet and put them in the oven on the lowest setting until they’re dry. Once they’re dry, store them in an airtight container.

Whichever method you choose, storing coffee grounds long-term is easy – and it’ll save you money in the long run!

Can Mylar Bags Be Reused

Most coffee mylar bags are actually reusable! You can clean them out and use them again to store your coffee beans or anything else that you want to store. You will just want to make sure that you give it a proper wash so that your fresh coffee is not at risk of getting unwanted bacteria.

To clean a mylar bag, just rinse it out with warm water and soap. You can also wipe it down with a damp cloth.

Let the bag air dry completely before using it again. You can reuse a mylar bag several times before it needs to be replaced.

Just make sure to clean them thoroughly after each use.

Mylar bags are also great for recycling so if you do not want to reuse them anymore you can send them to be recycled. This will minimize your footprint on the environment.


Coffee often comes at a better price when you buy it in bulk, or perhaps you like a specific coffee that you cannot get so easily. Whatever the case, you want to be able to store coffee effectively and safely.

Making use of mylar bags will help you to store coffee for longer periods of months or even years, depending on the coffee type. Beans last longer than grounds and freezing makes them last the longest.

Hopefully, this article has answered your question of how long will coffee last in mylar bags.

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