Loose leaf makes better iced tea than bags. That’s not a close call. The leaves have room to open, the extraction is cleaner, and you’re not fighting the papery, compressed character of a teabag that was never designed to be tasted this carefully. Two methods work well: cold steeping overnight, or flash chilling by pouring hot concentrate over ice. They produce different results and are both worth knowing.
Cold Brew (Overnight Method)
Add 30g (about 1 oz) of loose leaf tea to half a gallon of cold water. Stir briefly, cover, and put it in the fridge for 12 hours—overnight works fine. Strain and drink. That’s the whole process.
Cold water extracts more slowly than hot, which means less bitterness and less astringency. The tannins that make overbrewed hot tea harsh don’t extract as readily at cold temperatures. The result is a cleaner, lighter cup—particularly noticeable with green teas, where hot brewing can go bitter quickly. Cold brew is more forgiving and harder to mess up. The tradeoff is time: you need to plan ahead.
Take a look at our gallon iced tea pitcher if you're thirsty or smaller glass iced tea maker if you want something that would fit in the fridge door.
Flash Chill (When You Want It Now)
Brew your tea at double strength—twice the leaves you’d normally use, same amount of water—and pour the hot concentrate directly over a vessel full of ice. The ice melts as you pour, diluting the concentrate back to drinking strength while chilling it immediately. You have iced tea in under five minutes.
This is essentially the Japanese iced coffee method applied to tea. Flash chilling preserves more of the aroma that escapes as tea cools slowly, which gives the result a slightly brighter, more vivid character than cold brew. Black teas in particular are well-suited to this—the flavor holds up to the rapid temperature change.
For brewing parameters—water temperature by tea type, steep times—see the brewing guidelines page.
Which Teas Work Best
Jasmine Green: The best cold brew in the collection. The jasmine character comes through cleanly at cold temperatures—nothing gets lost in the chill. Naturally sweet without anything added. Cold brew it for 10–12 hours.
Yunnan Black: Full-bodied enough to hold up well iced, with a natural sweetness and malty character that doesn’t turn harsh when cold. Good either way—cold brew or flash chill both work.
Gunpowder Green: The backbone of Moroccan mint tea and the traditional base for Southern sweet tea. Bold enough to stand up to ice and—if you’re going that direction—sugar. Cold brew or flash chill.
Green Eyebrow: A lighter everyday green that cold brews beautifully. Clean and slightly nutty—good if you want something less assertive than Gunpowder.
Bao Zhong Oolong: Lightly oxidized, apple blossom notes, fresh and bright. One of the better teas for cold brew if you want to try something outside the standard green-or-black iced tea territory.
A Short History of Iced Tea
The man most often credited with inventing iced tea is Richard Blechynden, a British tea plantation owner who allegedly added ice to his unsold hot tea at the 1904 St. Louis World’s Fair when no one wanted a hot drink in summer heat. The story is probably apocryphal, or at least overstated. American cookbooks had cold-steeped tea recipes decades earlier.
The Buckeye Cookbook (1876) by Estelle Woods Wilcox describes what is essentially modern cold brew:
“To have it perfect and without the least trace of bitter, put tea in cold water hours before it is to be used, the night previous if for breakfast… the delicate flavor of the tea and abundant strength will be extracted and there will be not a trace of the tannic acid which renders tea so often disagreeable and undrinkable.”
Earlier still: a recipe for tea punch in Lettice Bryan’s The Kentucky Housewife (1839) calls for very strong steeped tea poured boiling over sugar, enriched with cream, and finished with a bottle of claret or champagne—served either hot or cold. One and a quarter pounds of loaf sugar is somewhere around two and a half cups, if you’re curious.
If the punch angle interests you, the tea punch blog post has more on that history and several recipes worth knowing about.
