Does Matcha Powder Expire?

Have you ever rummaged through your pantry, pulled out that vibrant green tin of matcha powder, and wondered if it's still fresh enough to use?

Understanding the shelf life of matcha powder is essential for enjoying its full flavor and health benefits.

In this post, we'll explore whether matcha powder expires, how to store it properly, and what signs to look out for when determining its freshness.

Does matcha powder expire?

Let's cut to the chase: While matcha doesn't spoil like milk or eggs, it does have a shelf life. Over time, matcha may lose its vibrant color, fresh flavor, and nutritional benefits. But there's more to consider.

Unopened matcha powder

Unopened matcha powder, when stored correctly, can retain its quality for up to 1 to 2 years. Manufacturers often include a "best-by" date on the packaging, which serves as a good guideline.

However, proper storage is key. Keeping the matcha in a cool, dry, and dark place helps preserve its freshness.

Opened matcha powder

Once you've opened that tin or bag of matcha, the clock starts ticking a bit faster. For the best flavor and health benefits, it's recommended to consume opened matcha within 60–90 days.

But don't panic if you can't finish it all within three months! If stored properly in an airtight container, opened matcha can remain usable for up to 12 months.

The science behind matcha oxidation

Matcha's delicate nature means it's susceptible to oxidation—a process where exposure to air leads to chemical changes. Oxidation can cause the matcha to lose its bright green color and fresh taste, resulting in a dull, bitter powder that's far from the quality you bought.

Proper storage conditions

Want to extend the life of your matcha? Proper storage is essential. Here are some tips:

• Use airtight containers: Exposure to air may oxidize the matcha, dulling its color and flavor. Seal it tightly after each use.
• Keep it cool and dark: Light and heat are enemies of matcha. Store it in a cool, dark place—your refrigerator is a great option.
• Avoid moisture: Moisture can cause clumping and spoilage. Always use a dry spoon, and keep the container sealed.

Dos and don'ts of storing matcha

Signs your matcha has deteriorated

Not sure if your matcha is past its prime? Here are some signs to look out for:

• Color changes: Fresh matcha has a vibrant green hue. If it looks yellowish or dull, it's likely oxidized.
• Bitter taste: While matcha has a natural bitterness, an overly bitter or off taste indicates it's gone stale.
• Loss of aroma: Fresh matcha has a rich, earthy scent. If the aroma is weak or nonexistent, freshness has faded.

Get your personalized vitamin recommendations in less than 3 minutes.

Take the Health Quiz

Get your personalized vitamin recommendations in less than 3 minutes.

Take the Health Quiz

Can you still use old matcha?

So, can you still use matcha that's past its best-by date? Generally, yes—it's safe to consume.

However, the experience may not be as enjoyable. The flavor, aroma, and potential health benefits diminish over time. If the matcha shows signs of spoilage, like mold or a sour smell, it's best to discard it.

Frequently asked questions (FAQ)

Here are some of the most frequently asked questions about matcha powder's shelf life.

Final thoughts

Matcha powder might not "expire" in the traditional sense, but its quality undoubtedly diminishes over time. By understanding its shelf life and storing it properly, you can ensure that each cup you brew is as flavorful and beneficial as possible. So, next time you scoop some matcha, you'll know exactly how to keep it at its best.

Sources and references

• Does Matcha Expire? How to Tell If Your Matcha Powder Has Gone Bad
• What is the Shelf Life of Matcha?
• Matcha Expire? Understanding Shelf Life, Storage, and Signs of Spoilage