How to store spices so they stay fresh: pepper, cardamom, cloves
Why spices go stale
A spice is valued almost entirely for its aroma and pungency. Much of that comes from volatile oils: compounds that slowly evaporate or oxidise once they are exposed to air. Nothing dramatic happens to an old jar of pepper or cinnamon. It simply smells of less and less until it adds very little to the dish.
The second risk is moisture. Dried spices stay sound partly because they are dry. When they pick up water from humid air, they can grow mould or attract insects. Spices Board India notes that black pepper is hygroscopic, meaning it absorbs moisture from the air, and that in the rainy season, when humidity is high, this can lead to mould and insect infestation. Anyone who has kept spices through a Kerala monsoon will recognise the problem.
So good storage comes down to four things:
- Dry: keep moisture out, both from the air and from wet hands and spoons.
- Sealed: limit contact with air so the aroma stays in the spice.
- Dark: light speeds up oxidation, especially in ground spices.
- Cool: keep jars away from the stove, oven, kettle and sunny windowsills.
Whole spices keep better than ground
Grinding a spice greatly increases its surface area, so the volatile oils escape and oxidise much faster. That is the main reason ground spices lose their character long before whole ones. If you want spices to stay fresh, the most useful habit is to buy whole and grind small amounts as you need them.
This works especially well for the spices Kerala kitchens use most:
- Black pepper (Malayalam: കുരുമുളക്, kurumulaku) keeps far better as whole peppercorns. A small hand grinder or a mortar and pestle handles daily needs.
- Green cardamom (ഏലക്കായ, elakkaya) stays aromatic inside the pod. Open pods only when you need the seeds.
- Cloves (ഗ്രാമ്പൂ, grambu) are the air-dried, unopened flower buds of an evergreen tree, and they are usually used whole anyway.
- Cinnamon (കറുവപ്പട്ട, karuvapatta) as quills or pieces holds its aroma better than powder.
Some spices, such as turmeric (മഞ്ഞൾ, manjal) and chilli powder, are almost always bought ground. For these, buy smaller packs more often rather than one very large pack, and be strict about the rest of the habits below. If you are not sure of a spice's Malayalam or English name, our Malayalam–English spice names list covers the common ones.
Containers and where to keep them
Choose the right container
Use clean, completely dry containers with tight lids. Glass jars with good seals and steel tins with snug lids both work well. Opaque containers, or clear jars kept inside a closed cupboard, protect against light. Avoid leaving spices in a torn packet held shut with a rubber band, since air and humidity get straight in.
Several small containers are better than one large one. Every time you open a jar, the air inside is replaced. Keeping a small jar for daily use and the rest sealed away means most of your stock is opened far less often.
Choose the right place
The shelf right beside or above the stove is the most convenient spot and also the worst one. It is warm, it gets steam from every pot, and grease settles on the lids. A drawer or cupboard away from the cooking area, the sink and any window that takes direct sun is a far better home for the main stock.
Small habits that help
- Use a dry spoon. A damp spoon carries moisture straight into the jar.
- Do not shake a jar directly over a steaming pot. The steam rises into it.
- Close lids straight after use, especially during the monsoon or in a humid flat.
- Write the month you filled or opened the jar on a small label.
- Do not top up an old jar with new spice. Finish the old stock first or keep the two apart.
Spice-by-spice notes
| Spice | Malayalam | Best stored as | Main thing to watch |
|---|---|---|---|
| Black pepper | കുരുമുളക് (kurumulaku) | Whole peppercorns, sealed | Absorbs moisture; mould and insects in humid weather |
| Green cardamom | ഏലക്കായ (elakkaya) | Whole pods, opaque container | Loss of green colour and aroma |
| Cloves | ഗ്രാമ്പൂ (grambu) | Whole buds, sealed | Aroma fading with air exposure |
| Cinnamon | കറുവപ്പട്ട (karuvapatta) | Quills or pieces | Powder fades faster than pieces |
| Turmeric powder | മഞ്ഞൾ (manjal) | Small sealed packs | Light and moisture |
Black pepper
Pepper is dried hard before it is ever stored. Spices Board India notes that pepper berries hold around 65 to 70 per cent moisture at harvest and must be dried to a much safer level. Its guidance also asks that storage areas be kept clean, dry and free of insect pests. At home the lesson is simple: pepper must stay dry. If peppercorns feel damp or start clumping, move them to a clean, dry jar straight away, and throw out any that show mould.
Cardamom
Kerala's small green cardamom is prized partly for its colour. Spices Board India's cardamom guidance says pods should be dried to a moisture level of 10 to 12 per cent to retain their green colour in storage, and that black polythene-lined gunny bags improve storage. Dryness and darkness are the two points that carry over to a home kitchen. A sealed, opaque tin in a cool cupboard does the same job on a small scale.
Cloves and cinnamon
According to Spices Board India, clove clusters are picked by hand when the buds are fully developed and then dried in the sun over several days. Once dry, whole cloves keep well in a closed jar. Cinnamon pieces also last well whole; if you prefer powder, buy it in small amounts and keep it sealed.
Storing spices in the Gulf or abroad
Many families carry spices back from Kerala in bulk. A few points help that stock last:
- Divide large packs into several small sealed containers as soon as you unpack. Open one at a time.
- An air-conditioned flat may feel drier than a Kerala kitchen in the monsoon, but kitchens everywhere still produce steam and heat, so keep the main stock out of the cooking area.
- Keep spices well away from cleaning products and anything damp, such as the space under the sink.
If you are planning what to bring back or pick up, the bilingual grocery list maker lets you write a list in both English and Malayalam, which helps when someone else is doing the shopping.
How to tell if a spice is past its best
The usual sign of an old spice is lost flavour. Use your senses:
- Smell: crush a little between your fingers. A strong, clear aroma means it is still good. A faint or dusty smell means it has faded.
- Colour: cardamom that has turned pale and powders that look washed-out have lost quality.
- Texture: clumping in a powder means it has taken up moisture.
- Warning signs: visible mould, webbing, small insects or a musty smell mean the spice should be thrown away, not dried out and used.
For more on choosing and keeping Kerala ingredients, see our guide on how to identify fresh fish, browse all kitchen guides, or check the seasonal produce calendar to see what is in season.
Sources and useful links
- Spices Board India: Cultivation practices for black pepper (drying, packaging and storage)
- Spices Board India: Cultivation practices for small cardamom (post-harvest and storage)
- Spices Board India: Clove
- Wikipedia: Spice (storage and grinding)
Frequently asked questions
What is the best way to store spices at home?
Keep them in clean, dry, tightly closed containers away from steam, heat and direct light. Buy whole spices where you can and grind small amounts as you need them.
Do whole spices last longer than ground spices?
Yes. Much of a spice's aroma comes from volatile oils that evaporate or oxidise in air, and grinding greatly increases the exposed surface, so ground spices fade faster.
How do I stop black pepper from getting mouldy in the monsoon?
Black pepper absorbs moisture from humid air, which can lead to mould and insects. Keep it fully dry in a sealed container and never use a wet spoon or open it over a steaming pot.
How should I store cardamom to keep it green?
Spices Board India links good green colour in storage to well-dried pods kept in black polythene-lined bags. At home, a sealed, opaque container in a cool cupboard follows the same idea.
Should I keep spices near the stove?
No. Heat and steam from the stove are what spices should be kept away from. A closed cupboard away from the cooking area is a better place.
