How to store dried spices so they keep their flavour: the four enemies of light, heat, air and moisture, the best containers and places, and whether to use the fridge or freezer.
The short answer¶
Store spices airtight, in the dark, somewhere cool and dry — a cupboard or drawer away from the cooker, kettle, dishwasher and sunny windows. Keep them whole until you need them, buy in quantities you will use, and label each jar with the date you opened or filled it. Dried spices do not usually "go off" in a dangerous sense; they simply lose aroma and colour, so the aim of good storage is to slow that fade.
Why spices fade¶
A spice's flavour is carried mostly by volatile aroma compounds — the terpenes, phenols and aldehydes described in aroma compounds — along with pigments such as the carotenoids in paprika and curcumin in turmeric. Four things speed their loss:
| Enemy | What it does | Worst affected |
|---|---|---|
| Light | Breaks down pigments and some aroma compounds | paprika, chilli powders, saffron, turmeric, dried green herbs |
| Heat | Speeds evaporation of volatile oils and chemical breakdown | Everything, especially ground spices |
| Air | Oxidises oils and carries aroma away | Ground spices; oily seeds such as poppy and sesame |
| Moisture | Causes clumping, mould and insect problems | Ground spices, especially salty blends and asafoetida |
Grinding multiplies the surface area exposed to all four, which is why whole spices last so much longer.
Containers¶
- Airtight is the most important quality. A screw-top or clip-top jar with a good seal, or a tin with a snug lid.
- Opaque or tinted containers protect from light. Clear glass is fine inside a dark cupboard or drawer.
- Glass does not absorb odours and is easy to clean. Metal tins are light-proof and robust. Good-quality food-grade plastic is acceptable for short-term storage but can absorb smells and colour, especially from turmeric and chilli.
- Size matters: the less air in the jar, the better. Decant bulk bags into a small jar for daily use and keep the rest sealed.
- Original packets are fine if they reseal properly; otherwise fold the top over tightly and clip it, or place the packet inside a jar.
See spice racks and jars for choosing jars and layouts, and masala dabba for the traditional Indian spice box.
Where to keep them¶
The worst places are the most convenient: a rack on the wall beside the hob, a shelf above the cooker, or a sunny windowsill. Heat and steam rise from the hob, and sunlight bleaches colour within weeks. The best places are:
- a drawer, with jars stored lids-up and labelled on top
- a cupboard away from the oven, kettle and dishwasher
- a pantry or larder
Fridge and freezer¶
For most dried spices a cool cupboard is enough. The fridge and freezer can extend shelf life for a few:
- Paprika, chilli powder, chilli flakes and gochugaru keep their colour longer in the fridge.
- Oily seeds — poppy seed, sesame — and nuts can turn rancid; the fridge or freezer slows this.
- Large bulk stocks of whole spices can be frozen in well-sealed bags and a small amount decanted for daily use.
⚠️ Beware condensation
Cold jars taken into a warm kitchen attract condensation. Moisture on the spice causes clumping and can cause mould. Take out only what you need and return the jar straight away, or let a frozen bag come to room temperature before opening it.
Good habits¶
- Label with a date — the day you opened or filled the jar — not just the name.
- Measure away from the steam. Shaking a jar directly over a simmering pan lets steam into the jar. Spoon it out first.
- Use a dry spoon. A wet spoon introduces moisture.
- Rotate. Put newer stock at the back and use older first.
- Audit once a year. Smell each jar: if there is little aroma when you rub a pinch between your fingers, it will add little to the food. See how long spices last.
Pests¶
Occasionally, dried foods including spices can harbour pantry moths or small beetles, particularly in warm kitchens. Airtight jars prevent them spreading. If you find webbing, larvae or tiny holes, discard the affected spice, clean the cupboard, and check nearby stores of flour, grains and dried fruit. Freezing newly bought bulk spices for a few days is a precaution some cooks take.
Whole spices that need special care¶
- vanilla — Wrap pods in baking paper or foil in an airtight jar or tube at room temperature. The fridge can dry them out and encourage mould.
- saffron — Airtight, dark and cool; tiny tins are ideal.
- asafoetida — Its smell escapes and taints everything nearby. Keep in its tub inside a second airtight jar.
- Dried limes and tamarind blocks keep well at room temperature if airtight.