How to buy good spices: whole versus ground, where to shop, what colour, aroma and texture tell you, sensible quantities, and warning signs of stale or adulterated stock.
The short answer¶
Buy whole spices where you can, in small quantities, from a shop that sells a lot of them. Whole seeds, pods, bark and berries keep their aroma for years; ground spices begin to fade within months, because grinding exposes the volatile oils to air. Freshness matters more than origin or price: a bag of cumin seed from a busy South Asian grocer, used within a year, will beat an expensive jar of ground cumin that has sat on a supermarket shelf in the light. Look for strong colour and strong smell, check dates, and be wary of spices that are suspiciously cheap for what they are, notably saffron.
Whole or ground?¶
| Whole | Ground | |
|---|---|---|
| Keeps its best flavour | Roughly 2–4 years | Roughly 6 months–1 year |
| Flavour when fresh | More complex; can be toasted first | Convenient, instant |
| Effort | Needs grinding | None |
| Risk of adulteration | Lower — easier to see what you are buying | Higher — fillers and dyes are harder to spot |
| Best for | Cumin, coriander, fennel, cardamom, cloves, pepper, nutmeg, allspice | Turmeric, paprika, ginger, chilli powders, sumac, amchur, asafoetida |
Some spices are almost always bought ground because they are hard to grind at home — dried turmeric and ginger roots are extremely hard, and paprika and asafoetida are sold ground as a matter of course. Everything else is worth buying whole and grinding as needed. See whole vs ground spices and grinding spices.
Where to buy¶
- South Asian, Middle Eastern, East Asian, African and Caribbean grocers. Usually the best value and turnover for the spices used in those cuisines, sold in larger bags. Large bags are only good value if you will use them; share or decant (see storing spices).
- Specialist spice merchants, in person or online. Often give origin, harvest or packing dates and less common spices. A good merchant will tell you when a batch was packed.
- Supermarkets. Convenient and reliable for everyday spices, but small jars are expensive by weight, and stock may sit under bright lights for a long time. Many supermarkets also have a "world foods" aisle with larger, cheaper bags.
- Markets abroad. Can be superb, or can be tourist stock of uncertain age and purity. Buy from stalls where locals buy, and remember import rules for bringing food home.
What to look for¶
Colour. Ground spices should be vivid for their kind: paprika and kashmiri chilli brick-red rather than brown, turmeric deep yellow-orange, sumac a deep purplish red, green cardamom pods green rather than bleached straw. Fading means age or light exposure.
Aroma. Where you can, smell before buying. Rub a pinch between your fingers; a fresh spice smells strongly and immediately. Dusty, flat or musty smells mean old stock.
Texture. Ground spices should be free-flowing. Clumping suggests moisture. Whole spices should be intact, not broken into dust at the bottom of the bag; nutmeg should be heavy for its size and not wormholed; vanilla pods should be supple and oily, not dry and brittle.
Packaging. Opaque or tinted, airtight, resealable packaging protects better than clear bags on a sunny shelf. A packing date is more useful than a best-before date, which is often set two or three years ahead.
Labelling. A clear name — ideally with the botanical name for anything with commonly confused types, such as cinnamon (Ceylon, Cinnamomum verum) versus cassia, or black versus green cardamom.
How much to buy¶
Buy the amount you will use in about a year for whole spices, and in about six months for ground. For spices used in every meal, such as cumin, coriander seed and black pepper, a larger bag is sensible. For something used twice a year, such as mahleb or grains of paradise, buy the smallest amount available.
Spices that need extra care¶
⚠️ Saffron, chilli powder and turmeric
These are the spices most often adulterated. Genuine saffron is sold as whole threads (the stigmas), deep red with a slightly flared trumpet at one end, and is never cheap; very cheap "saffron" is often safflower petals, marigold or dyed fibres. Buy threads rather than powder, from a reputable seller. Ground chilli, paprika and turmeric have in the past been found adulterated with illegal dyes or, in the case of some turmeric, lead compounds used to brighten colour. Buying from established suppliers subject to food-safety regulation reduces the risk. See spice adulteration and lead in spices.
Some other spices are grown to international quality standards; saffron, for example, is graded under the ISO 3632 standard by colouring strength and aroma compounds. A seller who can tell you the grade, origin and harvest year is usually a seller who cares about quality.
Common mistakes¶
- Buying a large jar of a ground spice for one recipe.
- Buying cassia labelled simply as "cinnamon" and wondering why it tastes different from Ceylon cinnamon — both are legitimate, but they are different (see coumarin in cinnamon).
- Choosing on price per jar rather than price per gram. Small jars are the most expensive way to buy spices.
- Not smelling. Your nose is the best quality control you have.