Does tea go off?
Quick answer
Dry tea doesn't spoil like food, but it fades. Most loose tea is at its best within 6–24 months: green and delicate teas fade fastest, black and roasted oolong keep longer, and well-stored puerh actually improves with age. So it's "best-by," not "expired" — a flat, papery or musty smell is the real signal to let it go, not the date on the tin.
| Tea type | Best within (well stored) | |
|---|---|---|
| Green / white | Delicate | 6–12 months |
| Oolong (light) | Fragrant | ~12 months |
| Oolong (roasted) | Stable | 18–24 months |
| Black | Robust | 18–24 months |
| Puerh / aged | Ages on purpose | Years — improves |
How to tell it's past its best
Tea that's faded isn't unsafe — it's just dull. Look and smell for:
- Little or no aroma from the dry leaf — the first thing to go.
- A flat, papery, or cardboard taste in the cup.
- Greens that have turned from vivid to drab and brownish.
When to actually bin it: any sign of damp, clumping or mould, or a sour, musty smell. Tea stored badly in a humid cupboard can spoil — that's the one case where it goes in the bin, not the pot.
Common questions
Can I drink tea past its best-by date? Usually yes — if it smells fine, it's just weaker. Add a little more leaf or steep slightly longer.
Does tea ever truly expire? Only when it's been spoiled by damp or mould. Stored dry, it simply loses flavour rather than becoming unsafe.
Why does my old green tea taste like nothing? Greens are the most fragile; they lose their fresh, grassy top notes within months once opened.
Keep it fresh with proper storage, learn to buy good tea in sensible amounts, and squeeze more from faded leaf by re-steeping. Dial in the brew with the grams calculator.