Does green tea go bad?

In this brief guide, we are going to answer the question “does green tea go bad” with an in-depth analysis of the lifespan of green tea. Moreover, we are going to discuss the proper way to store green tea and the factors that affect the freshness of the tea leaves.

So without much ado, let’s dive in and figure out more about it.

Does green tea go bad?

Yes, green tea does go bad after a certain time and as compared to other types of tea the shelf life of green tea is the shortest as it is an unfermented tea as in the world of teas the rule is “The more fermented the tea is, the longer will it last”. Almost all the green tea varieties are unroasted therefore they are the most volatile ones and have the shortest shelf life among all other types of teas.

It is recommended to use the green tea within 6 months after it is purchased to enjoy its premium fresh flavors as it is the peak quality time of the green tea. Nevertheless, green tea can last for about 1 year if it is kept properly in an air-tight container in a cool, dry, and dark place.

But when it comes to matcha, which is a powdered green tea variant it is recommended to use it within 1-2 months of opening.

How to properly store the green tea?

The proper way to store green tea is to keep it in an air-tight container, jar, or air-tight bag in a cool, dry, and dark place. It should be noted that the place should not be humid or else the humidity of the environment can decrease the shelf life of the green tea.

When green tea is exposed to the moisture there are great chances of mold formation on it and it will go bad afterward. Moreover, it should also be stored away from direct sunlight. So a cool, dark corner of your pantry will be a good place to store your green tea.

You should always seal the pouch after scooping out the green tea. Moreover, you should never use a wet spoon to scoop out the tea from the package or the container in which it is stored.

You can read more about how to store tea leaves here.

What are the factors that affect the freshness of the tea leaves?

The factors that determine how long the tea leaves will stay fresh include the level of dryness, processing, oxidation, and roasting.

Level of dryness

The shelf life of the tea leaves directly depends upon the extent to which they are dried. If the tea leaves are dried thoroughly then the tea will have a considerably longer shelf life. On the other hand, if the tea leaves are not dried thoroughly then they will have moisture in them because of which they will lose their flavor and aroma quickly and will have a short shelf life.

Moreover, if the leaves are kept in a humid environment, then the moisture in the environment will result in mold growth on the leaves. The leaves that have mold growing on it will go bad quickly.

Processing

The more processed the tea leaves are, the easier will it be to dry them thoroughly and the longer will be their shelf life. That means that the shelf life of the black tea is more than that of the green tea as the former is a more processed one.

Oxidation

Oxidation is the process that brings out various flavors in the tea and also plays an important role to stabilize the otherwise volatile flavors and constituents of life. Some of the tea like oolong tea and green tea are the ones that are partially oxidized.

Roasting 

Roasting further helps in drying the tea leaves thoroughly, thus it helps to further stabilize the constituents of tea. Roasting also enhances the flavor profile of the tea. When it comes to roasting, every type of tea can be roasted but mainly the oolong tea is the one that is roasted most commonly.

What can I do with expired tea leaves?

You can use the expired tea leaves as odor absorbers. You can keep them in your kitchen, fridge, or storage area so that they can absorb the strong odors there.

Moreover, you can also use them as fertilizers for your plants as the tea leaves still have some nutrients left in them. All you gotta do is to crush them and spread them in the soil surrounding your plant. 

What happens if you consume expired green tea?

So when it comes to teas, the best before or the expiry time refers to the time after which the tea no longer has its great flavor and aroma. So as long as you are not that concerned about the flavor and aroma of the green tea, you can go for a green tea that is past its prime age, and even if you consume expired green tea, it won’t harm you.

But if there is a mold in your green tea, it is recommended that you should not use it.  

Conclusion

In this brief guide, we answered the question “does green tea go bad” with an in-depth analysis of the lifespan of green tea. Moreover, we discussed the proper way to store green tea and the factors that affect the freshness of the tea leaves.

Citations

https://eco-cha.com/blogs/news/how-long-does-tea-stay-fresh

https://simplelooseleaf.com/blog/life-with-tea/do-tea-leaves-expire/

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Mahnoor Asghar is a Clinical Nutritionist with a bachelor's degree in Nutrition and Dietetics. She is compassionate and dedicated to playing her part in the well-being of the masses. She wants to play a fruitful role in creating nutrition and health-related awareness among the general public. Additionally, she has a keen eye for detail and loves to create content related to food, nutrition, health, and wellness.

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