Does Matcha Powder Expire?
The short answer is no, matcha doesn't expire in a way that makes it unsafe to drink.
But here's what does happen: its quality degrades significantly over time. Think of it less like a strict expiration date and more like a best-by date.
After the best before date, you'll notice changes in color, aroma, taste and texture. The vibrant green fades. The fresh smell and taste dull. The powder becomes grainy.
It's still safe, but it won't give you the perfect matcha latte you’re looking for.
Understanding Matcha's Shelf Life
When stored properly in an opaque, airtight container like our 30g metal tin, unopened matcha can last anywhere from one to two years.
Once you open it, though, the clock starts ticking faster. For the best flavor and benefits, you'll want to use opened matcha within one to three months.
Matcha actually degrades much faster than other teas because its a fine powder, which means more of it is exposed to oxygen, heat, and light. Other teas are larger whole leaves, giving them more protection.
So those best-by dates on your matcha aren't to be ignored. They mark the point where quality starts to noticeably decline.
How to Tell If Your Matcha Has Gone Stale
Color
Fresh matcha is a vibrant, electric green. It practically glows. When matcha goes stale, that brightness fades into something dull and yellowish-green, sometimes even turning brown.
Aroma
A fresh, high-quality matcha should greet you with a sweet, grassy, creamy scent when you open the tin. Stale matcha? It smells flat or musty. Sometimes it has no scent at all. Your nose knows.
Taste
High quality matcha like our 753 Matcha offers a smooth, rich, slightly umami flavor. When matcha turns stale, those notes disappear. You're left with something bitter, flat, or watery.
Texture
The powder should always feel fine, smooth, and fluffy between your fingers. If it's grainy, sandy, or clumpy, it has likely absorbed moisture. And if you see any signs of mold, discard the matcha immediately. That's the only time matcha becomes genuinely unsafe.
Storing Matcha for Maximum Freshness
Matcha is sensitive. Just like us, really. It needs protection from air, light, heat, and moisture.
When storing your matcha, start with an airtight, opaque container like our 30g metal tin to protect it from oxygen and light exposure. After opening, store it in the fridge if you can to keep it fresh and happy.
Consider buying smaller quantities more frequently. Instead of a large tin that sits for months, opt for a size you'll finish within a month. This way, you're always working with fresh matcha.
So, can matcha expire? Not in the traditional sense. It won't make you sick (unless its moldy). But to get the most out of your matcha, freshness matters.
Treat it with a little care, and every cup will feel like the small ritual it's meant to be.
