Cold brew tea,
made simple.

What is cold brew tea?

Cold brew tea is made by letting tea leaves sit in cold water over several hours so the flavor extracts gently, without heat. Because hot water pulls out bitter tannins and caffeine quickly, hot tea can turn harsh if you steep it a minute too long. Cold water extracts those same compounds much more slowly and selectively — it draws out the sweet, aromatic notes while leaving most of the bitterness behind. The result is a clean, rounded, thirst-quenching tea that tastes closer to the leaf itself.

You can cold brew almost anything: green tea, black tea, oolong, white tea, herbal tisanes like hibiscus and chamomile, and even matcha. Delicate teas (green, white, jasmine) shine because the method protects them from scorching. Bold teas (black, pu-erh) become smooth and low-acid, which is why cold brew is popular with people who find regular iced tea too tannic or too sour on the stomach.

How to make cold brew tea

The basic method takes two minutes of hands-on work and one overnight in the fridge:

1. Add tea to a jar or pitcher. Use about 1 tablespoon of loose leaf tea (or 1–2 tea bags) per 2 cups (500 ml) of cold, filtered water.
2. Pour in cold water. Room-temperature or refrigerator-cold water both work. Give it a gentle stir so the leaves are wetted.
3. Refrigerate. Cover and steep in the fridge — green and white teas for 4–6 hours, black and oolong for 8–12 hours, herbal blends for 6–12 hours.
4. Strain and serve. Remove the leaves or bags so the tea does not keep extracting, then serve over ice. Cold brew tea keeps well in the fridge for up to 3–5 days.

Because cold water extracts so gently, it is very hard to make cold brew tea bitter — if anything, the risk is under-steeping, which you fix by simply waiting a little longer.

Cold brew tea ratio and steep time by type

Ratios are forgiving, but this table is a reliable starting point. Adjust to taste — more leaf or more time for a stronger cup.

Tea type	Leaf per 2 cups water	Steep time (fridge)	Notes
Green tea	1 tbsp / 2 tea bags	4–6 hours	Sweet, grassy, no bitterness
White tea	1 tbsp	6–8 hours	Delicate, subtly floral
Oolong tea	1 tbsp	6–10 hours	Layered, floral to roasty
Black tea	1 tbsp / 2 tea bags	8–12 hours	Smooth, malty, low-acid
Herbal (hibiscus, chamomile)	1.5 tbsp	6–12 hours	Caffeine-free, bold color
Matcha	1 tsp whisked	Whisk + chill	Frothy, no steeping needed

The best teas for cold brewing

Almost any quality tea cold brews well, but a few are standouts. Jasmine green tea and dragonwell make a fragrant, honey-sweet cold brew. Hibiscus produces a tart, ruby-red, vitamin-C-rich brew that is naturally caffeine-free. Assam or Ceylon black tea gives you a smooth iced-tea base without the sour edge of hot-brewed-then-chilled tea. If you are new to cold brewing, start with a tea you already like hot — you will taste a cleaner, sweeter version of the same leaf.

Cold brew vs hot brew: taste, caffeine, and acidity

Cold brewing changes three things people notice immediately. Taste is smoother and sweeter because fewer bitter tannins are extracted. Acidity is lower, which is gentler on sensitive stomachs and on tooth enamel. Caffeine is typically a little lower than a hot brew of the same leaf, because caffeine extracts faster in hot water — though a long 12-hour cold brew of black tea can still be pleasantly energizing. If you love the flavor of tea but not the bitterness or the acid, cold brew is often the fix.

Is cold brew tea good for you?

Cold brew tea is simply tea and water, so it carries the same antioxidants (polyphenols and catechins) as hot tea, with no added sugar unless you add it yourself. Many people find it easier to drink more water through the day when it tastes this good, and the lower acidity makes it friendlier for sipping on an empty stomach. As always, tea is a beverage and not a treatment — we share general information, not medical advice.

Common cold brew tea mistakes

The two most common issues are easy to avoid. Weak, watery tea almost always means not enough leaf or not enough time — add a little more of both. Cloudy tea usually comes from brewing too warm or storing too long; keep it cold and strain on time. And remember to remove the leaves once it is ready, or a delicate green can eventually turn vegetal even in the fridge.