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45 votes
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How should I store whole bean coffee?

In a cool, dark, dry, place and whenever possible vacuum sealed. The oils in roasted coffee degrade as they are exposed to air (oxidization) as well as heat. As with just about any foodstuff moisture ...
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33 votes
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When does coffee go off?

Whole Bean Coffee Degradation Over Time Whole bean coffee will go stale within 14 days - on average. The graph below shows the quick 1.5 standard deviation drop in quality within the first 14 days (...
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23 votes
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Does storing coffee in a freezer preserve freshness?

No. In fact it's likely to make your coffee taste bad, and gum up your grinder. You should store your coffee in an air-tight container, at or just below room temp (about 25 degrees Celsius). Coffee ...
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22 votes

When does coffee go off?

The flavor constituents of roasted coffee are the result of high roasting temperatures. After roasting, they continue to be affected by environmental factors, their own natural instability, and ...
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18 votes
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How should I store my aeropress?

According to the Aeropress manual: Remove the cap and set it aside. Push the plunger to eject the "puck" of spent grounds into the trash. Rinse and/or brush away any grounds left on the ...
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  • 777
15 votes

How should I store whole bean coffee?

I would add to not store it in the refrigerator or freezer. It would fare better at room temperature and dry than cold where it could be exposed to food smells and moisture. You didn't ask, but also ...
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  • 1,455
15 votes
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How long can I store ground coffee in the fridge?

Coffee should never be stored in the fridge! In the same way that baking soda absorbs smells, coffee will absorb smells and flavors in your refrigerator. These compounds can be extracted when you ...
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14 votes
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Chemically, what's happening to coffee after it's brewed?

The biggest chemical change that is going to occur is going to be oxidation. Oxidation Chemically, oxidation is defined as the following from this source. Oxidation is any reaction in which one ...
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11 votes
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Freezing brewed coffee

This is a perfectly good idea, if you freeze the coffee as cubes and plan to use them to chill your iced coffee without watering it down. If you plan to simply freeze the coffee for drinking later I ...
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  • 396
11 votes
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How should I store ground coffee?

In general, it's best to not store ground coffee. If quality really matters, then the real answer is to back up. Try to grind only enough coffee for what you're using immediately to brew with. If you'...
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  • 1,589
10 votes

How should I store whole bean coffee?

Room temperature, open-air is fine (for a while) "Micro-roasted" implies that you purchased the beans where the roasting was performed on premises. That means it was probably roasted recently, within ...
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10 votes

Are reused glass jars ever fit for storing ground coffee?

The Short answer to this is no. You should not use a glass jar for storing coffee. Why? The base of the answer can be found here: When Does Coffee Go Off? Coffee goes stale relatively quickly, and ...
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  • 1,681
9 votes

How much does keeping beans vacuum sealed matter?

Coffee beans are freshest from about 12 to 48 hours after roasting until maybe one or two weeks later when stored properly in an airtight container. During the early portion of this period (...
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8 votes

Why do coffee packs have an aroma hole if it is recommended to store coffee in an air tight container

It's actually a one-way valve & it's critical to the shelf life of the coffee and the preservation of the bag itself. When coffee is fresh roasted, it releases carbon dioxide. It's basically a by-...
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8 votes
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Should I use the airtight container, or the opaque container?

I value sealed over opaque. Go for the sealed glass. Opaque is not really the goal, but rather in the dark. Keeping the stuff in a dark location, even in a clear container, will be fine. As far as ...
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  • 8,497
8 votes
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Best way to store unroasted/raw coffee?

I have a few different varieties of green beans that I have stored in freezer style plastic bags for going on 1+ year now and there is no mold present. I keep them stored at room temperate with as ...
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  • 96
7 votes
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How long will iced latte keep in the Fridge?

When I worked in a coffee shop and we prepared a beverage similar to an iced latte, we always mixed the milk in with the chilled espresso. Keep in mind this was a beverage prepared ahead of time and ...
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7 votes
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Coffee in a flask - How long can I store?

There are a few factors at play here. The temperature that the coffee is brewed at and how well the flask holds that temperature are primary. While the coffee stays hot the caffeine level will ...
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  • 1,142
7 votes
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The one-way valve, to squeeze or not to squeeze?

It doesn't actually matter! The valve on the bag is there to let gas out without letting gas in. The reason for this is that freshly roasted beans will continue to give off a bit of CO2 for a little ...
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  • 6,995
7 votes
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Are coffee 'vaults' like Friis really effective?

So there are a fair few, well, questionable claims on that page, and some downright contradictions: One Year of Friis Freshness Valves included, to vent freshness damaging CO2 gases CO2 gasses are ...
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  • 6,995
7 votes

Are reused glass jars ever fit for storing ground coffee?

My experience is that some jar lids are almost impossible to make completely odorless, while the glass simply needs to be soaked in a mixture of baking soda and vinegar for a few hours. I have even ...
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  • 1,381
7 votes
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Can flavoured coffees alter the shelf life of the coffee?

You are quite right - the flavouring does indeed change the shelf life in a certain way. It is necessary to look at this from two perspectives. Shelf Life by Safe Consumption: The flavouring ...
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7 votes
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Is there a way to economically store freshly roasted coffee under vacuum?

Yes, there is a way to store freshly roasted coffee - or even store bought roasted beans - at home under vacuum without expensive equipment. I drink wine and have collected a couple of wine storage ...
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  • 1,455
7 votes
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Does ground coffee lose caffeine like it loses aroma?

Caffeine has a very very low vapor pressure 9.0X10-7 mm Hg at 25 deg C. Source Almost none would evaporate.
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  • 413
7 votes

Does coffee really need to be stored in an air-tight container?

How to store coffee beans is a much opiniated area. Degassing CO2 from coffee beans is most important right after the coffee has been roasted, since it would release a lot there and then gradually ...
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6 votes

Does storing coffee in a freezer preserve freshness?

Freezing coffee is fantastic, but only if you do it correctly, and if it's not going to be consumed within the first 2-3 months after the roast date. It's surprising how much fragrance and flavor is ...
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6 votes

When does coffee go off?

Generally, there is the Rule of 15. Green coffee lasts fresh for 15 months, roasted (stored in an opaque, air-tight, slightly-below-room-temp container) 15 days and ground 15 minutes. This applies ...
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  • 201
6 votes

How does freezing affect vacuum packed coffee beans?

Freezing will not affect the coffee beans chemically. Thawing may affect them though. When you thaw the beans, small amounts of water (that were frozen as small amounts of air humidity) will melt and ...
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6 votes
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Finding if coffee is a health risk after best before

With all foods, FAT TOM is your best start to gauge their susceptibility to spoilage. Now, FAT TOM is actually an acronym for the six factors that influence the growth of microbes. And bacterial ...
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  • 3,853
5 votes

How should I store whole bean coffee?

Adding some thinking out of the box to all the great answers, I would say: You should not store it, instead try buying less quantity, consistent with your rate of consumption, more often. In this way ...
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