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Water temperature changes how much tannin tea releases

Boiling water extracts more astringency than water below the boil

Black tea is usually brewed with water close to boiling, which pulls out colour, body and tannins. Green and white teas are brewed cooler because their leaves are less oxidised and hot water makes them harsh and bitter. Steeping time matters as much as temperature, since both compounds keep dissolving as the leaves sit.

Different water temperature experiments
Chong Tian Lin ยท CC BY-SA 4.0 ยท licence ยท source

Where this comes from

Encyclopaedia Britannica

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Tags: tea, brewing, tannins

Water temperature changes how much tannin tea releases: the short answers

Where does this come from, and can I check it?
Boiling water extracts more astringency than water below the boil. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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