Storage & Freshness3 min readUpdated 29 September 2026

How to Store Herbs, Seeds, Nuts and Powders So They Stay Fresh

Hazelnuts in their shells

Good storage keeps flavour strong and prevents waste. This guide covers the simple habits that protect herbs, spices, seeds, nuts and powders, especially in a warm, humid climate like Nigeria’s.

In brief

  • Keep products cool, dry, dark and sealed.
  • Use airtight glass or food-grade containers, not open bags.
  • Write the date on each container and use the oldest first.
  • Freeze nuts and seeds you will not use soon.

The five enemies of freshness

  1. Heat: speeds up spoilage. Do not store near the stove or on a sunny windowsill.
  2. Light: fades colour and flavour. Use opaque or dark containers, or keep jars in a cupboard.
  3. Moisture: makes powders clump and encourages mould. Always use dry spoons.
  4. Air: dulls aroma and turns oils rancid. Close containers tightly.
  5. Pests: keep containers sealed and cupboards clean.

Choose the right container

Glass jars with tight lids, or food-grade plastic or metal tins, are ideal. Reuse jars only after washing and drying them fully. For powders, a small silica gel sachet (kept away from the food) helps in humid weather.

By product type

TypeWhere to keep itTypical care
Dried herbs and teasCupboardAirtight, away from light. Crush just before use for stronger aroma.
PowdersCupboardSealed, dry spoon every time. Discard if damp or musty.
SeedsCupboard or fridgeOil-rich seeds (sesame, sunflower, flax) last longer in the fridge.
Ground flax and ground nutsFridge or freezerGrind small amounts. They spoil faster than whole.
NutsCool cupboard, fridge or freezerWalnuts and cashews need the coldest storage.
Oils and buttersCool, dark placeTight lids. Keep water out of butters.

Signs something has gone off

  • A sharp, paint-like or bitter smell and taste
  • Visible mould, clumping or a damp feel
  • Insects or webbing

When in doubt, do not eat it.

Buying large and storing small

Bulk sizes save money, but only if you use them before they spoil. Decant into smaller jars and keep the main bag sealed. See our bulk buying guide.

Frequently asked questions

Should I keep spices in the fridge?

Most dry spices and herbs are fine in a cool, dark cupboard. Fridge storage can add condensation when opened, so only use it for oil-rich seeds, nuts and ground flax.

How can I stop powders clumping?

Keep them sealed, use a dry spoon, and store away from steam. A silica gel sachet helps in humid weather.

Can I freeze herbs and powders?

You can, in airtight containers, but it is rarely needed. Freezing is most useful for nuts and ground seeds.

Ready to try it?Shop the ingredients from this guide, or ask us a question. We reply on WhatsApp any time.

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