Cold-Brew Tea
A completely different extraction profile
Cold-brewing tea pulls a different set of compounds than hot brewing - sweeter, smoother, lower caffeine, and almost no bitterness. Method and recipes for every tea type.
Why Cold-Brewing Works Differently
Hot water rapidly extracts caffeine, tannins, and bitter catechins along with the desirable sweet and aromatic compounds. Cold water extracts much more slowly and selectively - amino acids and sugars dissolve in cold water; many tannins and caffeine extract poorly at low temperatures. The result is a cup that's strikingly sweet, smooth, almost juice-like, with 30-50% less caffeine than a hot-brewed cup of the same tea. Cold-brew also tolerates long steep times - over-extraction is much less of a risk.
- Cold-brew is the easiest brewing method for beginners - almost impossible to ruin
- It's also the best way to make iced tea - much smoother than hot-brewed-then-chilled
- Children, teens, and anyone caffeine-sensitive often prefer cold-brewed tea
The Basic Method
Use 5-10 grams of leaf per liter of cold filtered water. Combine in a glass jar or bottle. Refrigerate 6-12 hours (or overnight). Strain. The result keeps in the fridge 2-3 days. That's the entire method. There's no temperature timing to manage, no precise steep, no kettle. For 'flash cold-brew', use ~15g leaf per liter with ice, brew 30 minutes at refrigerator temp - faster but slightly more concentrated.
- Mason jars with a fine-mesh strainer work perfectly; no special gear needed
- Higher leaf ratio + shorter time gives a more concentrated, vivid cold-brew
- Try lemon zest, fresh mint, or fruit slices in the brewing vessel - they infuse beautifully cold
Best Teas for Cold Brewing
Japanese greens (especially gyokuro) are extraordinary cold-brewed - the high amino acid content shines in cold water, producing an intensely sweet, umami cup. Sencha and kabusecha are also excellent. White teas (Silver Needle, Bai Mu Dan) make a remarkably clean, sweet cold brew. Lightly oxidized oolongs (Ali Shan, Tieguanyin) cold-brew beautifully into a floral, smooth cup. Black teas work but tend to lose some of their bold malty character. Pu-erh and Wuyi yancha don't translate as well - the cold doesn't extract their roasted-mineral notes.
- Gyokuro cold-brew is a revelation - try it once and you'll keep coming back
- Cold-brew silver needle tastes almost like sweet melon water
- Save Wuyi yancha and pu-erh for hot brewing where their character shines
Iced Tea: Cold-Brew vs Hot-Brew-Over-Ice
Both methods produce iced tea, but they're noticeably different. Cold-brewed-then-iced gives a smoother, sweeter, less astringent cup - best for delicate teas where you want clarity. Hot-brewed-over-ice (Japanese 'koridashi' or 'iced shock' method) preserves more of the tea's intensity and aromatic top notes, since rapid chilling locks in volatile compounds - best for aromatic teas like Darjeeling, oolong, or jasmine. For commercial-quality iced black tea like restaurants serve, brew double-strength hot and pour over ice.
- Cold-brew = best for delicate teas (greens, whites, light oolongs)
- Hot-brew-over-ice = best for aromatic teas (Darjeeling, jasmine, oolongs)
- Sweeten while hot if you want sugar to dissolve - cold water resists sugar