How long does coffee stay fresh after it is roasted?

Joshua Allerton
June 12, 2023

When it comes to coffee, freshness is key to getting the best possible flavor and aroma. The roasting process brings out the unique characteristics of each coffee bean, and it is important to drink it before those flavors start to fade.

But how long does coffee stay fresh after it is roasted?

In this blog post, we'll dive into the science of coffee freshness and give you some tips on how to keep your coffee tasting its best for as long as possible.

The Short Answer: 2-4 Weeks

During this time, the coffee will be at its peak freshness and will have the most vibrant flavours. After this time, the coffee will start to lose its flavour and aroma as the volatile compounds that give coffee its unique taste start to break down. However, there are many factors that can influence how long coffee stays fresh, including the type of coffee and how it is stored.

Factors that Affect Coffee Freshness

The freshness of coffee is influenced by a number of different factors, including the type of coffee, how it is roasted, and how it is stored. Let's take a closer look at each of these factors:

1. Type of Coffee

Different types of coffee have different shelf lives. For example, robusta coffee beans tend to have a longer shelf life than arabica beans. This is because robusta beans have a higher acidity level, which helps to preserve the coffee's flavour.

2. Roast Level

The roast level of coffee can also affect its shelf life. Generally, darker roasts have a longer shelf life than lighter roasts. This is because darker roasts have a lower water content, which helps to preserve the coffee's flavour.

3. Oxygen Exposure

Oxygen is one of the biggest enemies of coffee freshness. When coffee is exposed to oxygen, it starts to oxidise, which can lead to a stale, flat taste. To prevent this, it is important to store your coffee in an airtight container.

4. Moisture

Moisture is another enemy of coffee freshness. When coffee is exposed to moisture, it can become mouldy or stale. To prevent this, it is important to store your coffee in a dry place.

5. Temperature

Temperature can also affect coffee freshness. Coffee should be stored at room temperature, as extreme temperatures can cause the coffee to lose its flavour.

How to Store Coffee to Keep it Fresh

Now that we know what factors can affect coffee freshness, let's take a look at how to store coffee to keep it fresh. Here are some tips:

Use an Airtight Container.

Exposure to air can cause oxidation, which makes your coffee beans stale and results in a bitter taste. Therefore, it is recommended to store your coffee beans in airtight containers. Mason jars, vacuum-sealed bags, and canisters with tight-fitting lids are great options for storing coffee beans.

Keep it in a Dark Place.

Light can also affect coffee freshness. To prevent this, it is important to store your coffee in a dark place, such as a cabinet or pantry.

Avoid Moisture.

Moisture is one of the biggest culprits when it comes to ruining the flavour of your coffee beans. When coffee beans are exposed to moisture, they lose their freshness, flavour, and aroma. Avoid storing your coffee beans in areas with high humidity, such as the refrigerator, the freezer, or near the sink or a window. Instead, store your coffee beans in a dry place, preferably in airtight containers, away from moisture.

Avoid exposure to light.

When coffee beans are exposed to light, they lose their freshness and become stale. Hence, it is essential to store your coffee beans in a dark place, away from direct sunlight or fluorescent lighting. Opt for opaque containers or store your coffee beans in a pantry or a cabinet that doesn't receive much light.

Don't store coffee beans for long periods

Although you may want to stock up on your favourite coffee beans, it's best not to store them for too long. Coffee beans have a shelf life of about two weeks after they are roasted, after which they start to lose their freshness and flavour. So, it's better to buy small batches of coffee beans and consume them within two weeks for the best taste.

Grind your coffee beans just before brewing

Grinding your coffee beans just before brewing is one of the best ways to get the freshest and most flavourful cup of coffee. Coffee beans start to lose their flavour as soon as they are ground, so it's best to grind them just before using them. Invest in a good coffee grinder and grind only the amount of coffee beans you need for your brew.


So, how long does coffee stay fresh after it is roasted? The short answer is around 2-4 weeks. To ensure that your coffee stays fresh for as long as possible, it is important to store it in an airtight container, keep it in a dark and dry place, and avoid extreme temperatures. By following these tips, you can enjoy the vibrant flavours and aromas of fresh coffee for longer. Happy brewing!

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