Should I rinse tea before brewing?
A rinse is standard for some categories and pointless for others, and the reasoning is not the one usually given. The explanation usually given for rinsing is not the one that holds up.
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What is being compared
Why these get confused
The pesticide explanation is repeated everywhere and does not hold. The real reasons are dust and rehydration, and they only apply to some formats.
Point by point
| Aspect | Shou pu-erh (ripe) | Sencha |
|---|---|---|
| Is a rinse standard | Yes. Compressed dark tea is rinsed and the water discarded. | No. Rinsing sencha throws away the best infusion. |
| What it is actually for | Waking compressed leaf and washing off storage dust — a cake has been handled and stored for years. | Nothing. There is no compression and no long storage. |
| The reason usually given | 'Washing off pesticides', which a five-second rinse would not achieve anyway. | Same claim, equally unfounded. |
| How long | A few seconds, then discard immediately. A long rinse extracts the tea. | Not applicable. |
| Which other teas | Aged oolong, tightly rolled oolong and any compressed format benefit. | Green, white and most black tea do not. |
The short answer
Rinse compressed and aged tea. Do not rinse green, white or ordinary black tea — you are pouring away the infusion you paid for.
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