Coffee & Tea
April 17, 2023

Can You Freeze Coffee Grounds?

If you freeze coffee grounds, the water inside them can expand and make the coffee grounds dry and clumpy. This can affect the flavor and texture of the coffee when you brew it. The oils in the coffee can also break down or become bad-tasting when frozen. But you can still make it work to your advantage.

Joana Regulacion
Table of Contents:

If you're a coffee lover, you probably know how important it is to have a fresh, delicious cup of coffee every morning. And buying coffee grounds in bulk can be a great way to save money. This guide will help you know if you can keep coffee in the freezer if you go for bigger packs.

You can definitely freeze coffee grounds to extend their freshness. You just need to control the humidity, heat, and exposure to air to keep the flavor good.

What happens if coffee grounds freeze

Freezing coffee grounds can keep it fresh longer. But it's not as simple as just buying a big bag of coffee and throwing it in the freezer.

If you freeze ground coffee and use a vacuum sealer to seal it, it can stay fresh for up to two years. But if it's not vacuum-sealed, it may only last about six months in the freezer.

Freezing the whole bag might seem like a good idea, but it's not always the best solution for keeping your coffee fresh for longer.

There are a few things you should consider before stashing your coffee in the freezer.

For example, there can be a few factors that can affect your coffee’s freshness over time.

This includes the following:

  • the type of roast

So how does the type of roast have something to do with freshness? Roasting more lightly not results in a cup with more clarity and nuance.

But also, lighter roasts help to extend the life of the roasted beans. This is because lightly roasted coffee produces less CO2 than dark roasts.

  • the storage container

Dark, airtight containers keep your coffee away from direct sunlight and oxygen. 

The way you store your coffee could mean a world of difference when it comes to its freshness.

The light degrades the oils in the beans, which gives them their flavor. As a result, it's critical to store your coffee in a dark spot where it won't be exposed to light.

Coffee flavor and scent, on the other hand, begin to degrade once coffee beans come into contact with air.

The storage or what we call a bean hopper is even one of the considerations in picking the best grind and brew coffee maker.


Comparable to iron turning rusty when exposed to oxygen for an extended period of time, solubles in coffee could begin to oxidize.

  • humidity level

The amount of humidity in your freezer can affect how well your coffee stays fresh over time.

Most fridges come with crisper drawers with vents. You can open it to lower humidity or close it to raise humidity.

📢 Fact:

The humidity when handling coffee should be between 9.5% and 11.5%. If the grain surpasses these humidity levels, mold can grow.

Mold can negatively impact the taste and quality of a decent cup of coffee. Coffee that has been exposed to humidity could affect the quality of extraction.

The water from the espresso machine will not saturate it as rapidly as we like. This will result in a slower extraction than usual.

So, before you freeze your precious coffee, take a minute to think it through and make sure you're doing it right.


When it comes to keeping your food fresh, the freezer is a pretty handy tool.

But it's important to keep in mind that not all freezers are created equal.

Freezing coffee grounds —is it a good idea?

The freezers we typically have in our homes aren't able to completely stop the natural processes that cause food to spoil. 

However, they're still pretty effective at slowing down these processes. In fact, really low temperatures can be especially helpful in delaying the loss of volatile aromatic compounds.

This is because the stuff that gives food its flavor and aroma is the same thing that causes food to spoil over time.

If you're a coffee aficionado, you might know that ground coffee can lose its flavor and aroma over time. That's why it's tempting to store it in the freezer that comes with your refrigerator, right?

But hold on a minute✋—it's not that simple. 

You see, those freezers actually have a pretty humid environment. As we mentioned earlier, this can wreak havoc on the quality of your coffee. Moisture can seep into the coffee and even crystallize.

This is NOT what you want when you're trying to make a delicious cup of joe.

And it gets even worse if the temperature in your freezer is unstable.

Think about it: you open and close that freezer all the time, which can cause the temperature to fluctuate.

If your ground coffee is stored in a non-airtight container and you keep taking it out to thaw and then put it back in the freezer, you're just making things even worse. All that back and forth can cause even more moisture to seep into the coffee, and the flavor will suffer.

How to freeze coffee grounds for maximum freshness 

If you want to make sure your coffee stays fresh and delicious, you'll need to take some extra steps to store it properly.

Storing coffee in the freezer can be a bit tricky, but it's worth it if you want to keep your coffee fresh for longer.

The problem is, some people just throw a whole bag of ground coffee into the freezer and call it a day. That's like putting your cat in the fridge and expecting it to come out purring. It's not gonna happen! (R.I.P. Tom)

If you're not careful, condensation can build up in the bag and make your coffee taste like wet socks. 🧦🤢 

And if you're really daring and decide to store your coffee in the fridge instead, well, let's just say you might as well be drinking mud.

But fear not, my coffee-loving friends! There is a sure way to do this right.

You can repackage a week's worth (or two) of coffee grounds into double bags or non-reactive containers to keep them fresh.

Non-reactive containers include metals, such as stainless steel and tin. But arguably the best container options for coffee storage are ceramic, and glass.


Non-reactive containers have materials that will not react with acids. 

And if you're feeling fancy, you can use a vacuum sealer to really lock in that freshness. Just be careful not to suck all the air out and create a black hole in your kitchen. Kidding! 

💡Pro tip:

If you have a Keurig machine, you can even use reusable coffee pods to store your ground coffee.

Just make sure to take them out only when it's time to brew, or you might end up with a coffee pod collection that rivals your Beanie Baby collection from the '90s. 


How to keep coffee grounds fresh

If you're a coffee lover, you know that freshly ground coffee is the bee's knees. But did you know that ground coffee has a shorter shelf life compared to whole beans? It's true!


Ground coffee is at its best for about 3 to 4 weeks, while unopened bags can last up to 5 months.

But let's be real, who can resist the temptation for that long?

To keep your ground coffee fresh and flavorful for as long as possible, you need to protect it from its enemies:

  • Heat
  • Light
  • Moisture
  • Air

See, it's like the Justice League, but for coffee. 😂

You want to store your coffee in a cool, dark, dry, and airtight container.

A pantry is a great spot, but if you don't have one, find a spot in your kitchen that fits the bill. Just make sure the humidity is around 55% and the temperature is stable at around 29.4°C

It's like giving your coffee its own little oasis. It's like a vacation for your beans.

Okay, maybe that's a bit of an exaggeration, but you get the point. If you take care of your coffee, it'll take care of you. So give it a good home and enjoy the perfect cup of joe every time.

Freezing coffee grounds FAQ

Here are some of the frequently asked questions about freezing coffee grounds and keeping coffee in the freezer.

Is storing coffee in the freezer the same as freeze dried coffee grounds?

No, storing coffee in the freezer is not the same as freeze-dried coffee grounds.

When coffee is stored in the freezer, it is typically in its regular brewed form, either as leftover brewed coffee or ground coffee. 

On the other hand, freeze-dried coffee is made using a process called freeze-drying.


Freeze-drying is where brewed coffee is frozen and then dried using a vacuum to remove the frozen water content, leaving behind dry coffee particles. 

Making instant coffee out of your leftover coffee is going to need more than just a freezer where you keep your bacon.

Can you freeze coffee grounds in k kups?

Yes, you can freeze coffee grounds in k kups. 

In my opinion, this is better than freezing whole bags of coffee. I don’t think it’s a good idea to thaw the beans, get the coffee you need, and repeat. 

You can simply place the K Cups in a freezer bag and pop it in the freezer for up to 6 months. A word of wisdom: freezing K Cups will not keep them fresh permanently.

It may even cause them to lose flavor. If you are concerned about the quality of the coffee, it is preferable to completely avoid freezing it.

Is it good to freeze coffee grounds for freshness?

Yes, but only if stored correctly.

Frozen ground coffee can last and preserve its freshness for up to two years if vacuum-sealed. But when it is not vacuum sealed, it won’t stay fresh for more than six months.

The right storage is the secret to fresh coffee. When not frozen, such as when you keep your coffee in the pantry, vacuum-sealed coffee can preserve its freshness for five to six months.

Should ground coffee be refrigerated?

Nope, it doesn’t need to be.

It can be a way to keep ground coffee fresh for months, but then again, it depends on where it is kept.

Even refrigerating brewed coffee is a bit of a debate. We can’t always finish the coffee we made and it feels like a shame to throw it away, don’t you think?

So how long is brewed coffee good for in the fridge? If you store brewed coffee in the fridge in a sealed container, it's generally good for about 3-4 days.

But if it has dairy in it, it's best to finish it within 2 hours, especially if it's been left at room temperature. Dairy can make coffee spoil faster. There are other things that affect how long coffee can last in the fridge, too.

For instance, factors like temperature and storage conditions can affect its shelf life. It's important to be mindful of these factors, especially when dairy is involved.

You can freeze coffee grounds if…

You can freeze coffee grounds if you split them into small batches and store them in an airtight container.

If you want to keep your coffee fresh for a longer time, you can absolutely put it in the freezer.

But don't just put a big bag of coffee in there! It's better to split it up into smaller bags or containers. This keeps you from having to thaw the entire thing or opening your airtight container all the time.

Remember, we are not letting the air in.

You can take out only what you need for one or two servings at a time, and keep the rest frozen. Before I forget: remember not to freeze your coffee again after it has been thawed.

By doing this, you can keep your coffee fresh for longer because it won't be exposed to air and moisture that can make it go bad.

In the end, it is still best to store coffee grounds in a sealed container in a cool, dry place instead of keeping coffee in the freezer.

About the author
Joana Regulacion
Joana is an engaging content writer and dynamic virtual assistant. ✍️ She helps business owners and entrepreneurs deliver a clear message to everyone and attract and engage the perfect audience. She is a proud wife, mom, and animal lover.‍ She believes that her love for learning new things is her key to writing engaging content.

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