Can You Reheat Tea?

Yes, you can reheat tea, and it tolerates reheating better than coffee does. The compounds that make coffee taste bad when reheated form relatively quickly; tea has a different chemistry and stays acceptable for a reasonable window before you reheat it. That said, reheated tea is not quite the same as a fresh cup, and a few simple rules make the difference between drinkable and flat.

Can You Reheat Tea?

Yes. Plain brewed tea that has been left to cool at room temperature is safe to reheat for up to four hours after brewing. After that, while it’s unlikely to cause harm, the flavour has degraded enough that reheating it is rarely worthwhile. Tea with milk should be treated more carefully: refrigerate it within two hours and reheat gently, not to boiling. Tea with sugar or honey can be reheated without any special treatment.

Why Reheated Tea Tastes Different

Tea contains tannins (polyphenols that create astringency) and catechins (antioxidants responsible for much of the fresh flavour). When tea is reheated, particularly if it was brewed strongly or left to steep for too long before cooling, the tannins become more pronounced and the cup tastes flatter and more bitter. The volatile aromatic compounds that give each tea its character also continue to evaporate as the tea sits, meaning some of the distinction between a delicate green tea and a robust Assam disappears over time.

The practical upshot: reheating tea brewed for the right amount of time and refrigerated promptly gives a noticeably better result than reheating tea that sat on the counter for three hours before you noticed it.

Reheating Tea in the Microwave

The fastest method and perfectly acceptable for most teas.

1. Pour the tea into a microwave-safe mug. Remove the teabag if it’s still in there: reheating with the bag in over-extracts the tannins and makes the result noticeably more bitter.
2. Heat at 80% power for 45 to 60 seconds.
3. Stir and check the temperature. It should be warm but not boiling. Boiling tea a second time drives off more volatile flavour compounds and makes the tannins harsher.
4. Add 15-second bursts if needed.

Reheating Tea on the Stovetop

Better control, particularly useful for larger quantities like a pot of tea.

1. Pour the tea into a small saucepan.
2. Heat over low to medium-low heat, stirring occasionally.
3. Remove from heat when it steams gently and is hot to the touch. Do not bring to the boil.
4. Pour immediately.

Reheating Tea With Milk

The same principles apply, but watch the milk. Scorched milk has a sulphurous, unpleasant flavour that no amount of sugar fixes. Heat gently and stop well before it simmers. Milk also separates slightly if brought to a boil, which changes the texture of the tea.

Does the Type of Tea Matter?

How Many Times Can You Reheat Tea?

Once, ideally. Each reheating drives off more of the volatile aromatics and makes the tannins more pronounced. After a second reheating the cup tends to taste flat and noticeably bitter. If you regularly have leftover tea, a thermos or insulated mug is a better solution than repeated reheating: it keeps the temperature up without the flavour degradation of multiple heat cycles.

Q: I just recently started drinking tea, and I was wondering what is the best way to reheat it?

A: Tea is very simple to reheat, and it is all based on personal preference. There are a two great ways to reheat it, the microwave and the stove.

The Microwave

When you are microwaving your tea, be sure to remove the tag on the tea bag, if you are microwaving it together. The tag contains a tiny staple, and metal in a microwave is a big no-no! It will spark and could cause a fire.

Simply place your mug of tea into the microwave for 30 seconds at a time. If you like it scalding hot, one minute and 30 seconds typically is enough based on an 1100 watt microwave. You should check it every 30 seconds to ensure that it is coming to the temperature that you like.

The Stove Top Method

Using the stove to warm your tea is pretty easy. Simply add your tea to a pot and turn it on low heat. Give it about five minutes, and it should be warm. Depending on how hot you like your tea, feel free to leave it on for longer. Be sure you do not boil the tea bags as they are fragile and may be broken open, leaving you with tea leaves in your beverage.

Instead of setting the kettle back on, you can now reheat your tea quickly and easily using these methods. What method have you used? Do you have any tips to share with other readers? We would love to hear from you.