Expiration & Storage Tips
When does green tea expire?
Unopened, a packet of green tea leaves or bags generally remains fresh up to one to two years from the manufacturing date. Once opened, the tea can last you around 6 months to a year, but its flavors might start to deteriorate after 6 months. As for homemade green tea preparations such as iced tea or latte, it's best to consume them within 2-3 days. Freezing green tea is not generally recommended, because it may impact the flavor and aroma of the tea.
How do you tell if green tea is bad?
Determining if green tea has gone bad can be a bit tricky as it doesn't spoil in the same way food with more moisture does. But it does lose its flavor, aroma, and health benefits over time. The first sign to look for is a dull, stale, or oddly 'off' smell as compared to its usually fresh, grassy aroma. As for the appearance, if your green tea leaves or powder look dull and faded instead of vibrant, or there's a noticeable amount of dust in the bag, it's likely past its prime. Lastly, if you brew the tea and the taste is flat, stale, or it loses its usual refreshing flavor profile, it's probably not fresh anymore.
Tips for storing green tea to extend shelf life
• Green tea is sensitive to heat, light, moisture, and strong odors, so it's best stored in a cool dark place, preferably in an airtight container. Avoid storing it near strong-smelling foods or spices.
• If you bought more than you can use in six months, consider repackaging the remaining amount in vacuum-sealed baggies, or wrap tightly in plastic wrap, then store in a cool, dry place. This could help retain the quality about a month or two longer.
• Try to handle green tea leaves with clean, dry hands or utensils. Moisture is a major enemy of green tea.
• If you're using loose leaf green tea, one hack is to store it in small individual portions after opening the packaging. This way, each time you need to brew tea, you're only exposing a small amount tea to air.