Unlike coffee beans, tea doesn't need grinding or special equipment — but it does need a little care. Stored badly, even a fine tea can turn flat, musty or stale.

This guide uses what Wikipedia's tea articles document, plus the storage directions printed on Ceylon spice and tea packs.

At a glance
  • Green tea: usually loses flavour within a year
  • Black tea: retains flavour for several years
  • Main risks: moisture, heat, light and strong odours
  • Moisture: can allow fungi to grow
  • "Caddy": from "catty", a Chinese unit of weight

How long does tea keep?

According to Wikipedia's article on black tea:

Always check the best-before date on your pack.

What spoils tea?

Wikipedia's tea processing article warns that without careful moisture and temperature control, fungi will grow on tea, which can render it unfit for consumption. That makes moisture the most important thing to avoid.

Common-sense storage follows from this:

Spices tooThe same advice applies to spices: Ceylon cinnamon packs, for example, direct that cinnamon "should be stored in an air-tight container in a cool, dark place away from heat & moisture".

The tea caddy: a short history

Wikipedia's tea caddy article explains that when tea first reached Europe from Asia it was extremely expensive and kept under lock and key. The containers were often decorative pieces for the drawing room.

The tea caddy began as a locked treasure box — a reminder of how precious tea once was.

Tea bags

Tea bags usually contain small particles (fannings), which have more surface area exposed to air than whole leaves. Keeping them in a sealed container helps. See Tea Bags vs Loose Leaf.

Sources & further reading

Tea Online Editorial TeamFacts in this article are drawn from the sources listed above, such as the Sri Lanka Tea Board, Wikipedia and government health agencies. Featured product links on this site go to Yarra Valley Impex, an Australian retailer of Ceylon tea and spices. These are commercial links. This article is general information and not a substitute for professional medical advice.