Tieguanyin does have an expiration date, but it varies depending on the degree of fermentation and packaging. For teas with a shorter shelf life, it's best to consume them within their expiration period to enjoy their authentic flavor and derive Health benefits. So, how long before Tieguanyin expires? Let's explore further.

How Long Until Tieguanyin Expires

1. Fermented Tieguanyin: Most Tieguanyin is lightly fermented, so its shelf life isn't very long, typically around three months. It's best to drink it within one to two months. However, if vacuum-sealed and stored at 3-5 degrees Celsius, it can last up to two years. If returned to room temperature, it should be consumed as soon as possible.

2. High-Temperature Roasted Tieguanyin: Tieguanyin that has been roasted at high temperatures can be kept for ten to twenty years or even aged into old Tea. In Fujian, there's a tradition of aging tea inside pomelo peels, which can later be brewed together as a cooling tea.

3. Vacuum-Compressed Packaged Tieguanyin: Tieguanyin sold in stores is usually vacuum-compressed packaged. To preserve it for a longer time, store it in a cool, dark place away from direct sunlight. Storing it at minus 5 degrees Celsius is even better. However, it's not recommended to keep it for more than a year; consuming it within half a year is ideal.

How to Determine If Tieguanyin Has Expired?

1. Appearance: Expired Tieguanyin may show visible signs such as discoloration or mold. You can also check for brittleness by gently handling the leaves. Moldy tea leaves tend to be brittle and crumble easily. If you don't see any obvious changes, continue your inspection.

2. Smell: If visual inspection doesn't reveal anything, you can use your sense of smell. The aroma of expired Tieguanyin will differ from its original scent, lacking the rich and fragrant aroma. If you find the smell to be average, the tea may not be completely spoiled but close to expiration. If the leaves crumble easily, they are definitely past their prime and should not be consumed.

3. Check the Expiration Date: Many teas have an expiration period of about one to two years, and some Tieguanyin can last up to three years. When purchasing, choose teas with production dates closer to the present. Avoid buying teas that are too old. Even if a Tieguanyin has passed its expiration date but still smells normal, exercise caution. You can Brew a small amount to assess the taste and aroma before deciding whether it's safe to drink.