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Whole coriander seeds or ground

Updated: 21 October 2026

You have decided the jar is for cooking, and the next choice is whole coriander seeds or ground coriander. The powder is faster on a Tuesday night. It also goes flat, and a heavy toast turns the seeds bitter instead of fragrant. Every culinary listing in this set is already whole seed, not a pot of powder. Bags, prices and weight clashes sit in the [coriander seeds comparison](/hub/herb-seeds/coriander-seeds). This page is the form, the toast and the jar. Peter F. is passing on published cookery guidance, not a timed oven test of these ASINs. A qualifying purchase can earn a commission at no extra cost to you.

You have decided the jar is for cooking, and the next choice is whole coriander seeds or ground coriander. The powder is faster on a Tuesday night.

Our top picks

Rajah Rajah Dhaniya 2 × 50 g

Best overall

Rajah Rajah Dhaniya 2 × 50 g
9.2/10about £1.20
View offer
TRS TRS whole dhania 250 g

Alternative

TRS TRS whole dhania 250 g
8.6/10about £4.99
View offer
Natco Natco coriander seeds 300 g

Best value

Natco Natco coriander seeds 300 g
7.6/10about £3.99
View offer
On this page
  1. 1.Whole seed or powder
  2. 2.A light toast
  3. 3.Jar, best-before and a large bag
  4. 4.Leaf and seed are different

Whole seed or powder

Buy whole if you will grind a little at a time. Buy ground only if you know you will not. Ottolenghi, in The Guardian on 4 May 2024, says buy whole where you can, toast lightly, cool, then grind. Ground coriander is the same dried fruit, milled, so the smell leaves a jar of powder sooner. Cookipedia calls the crushed fruit lemony and warm, and says the ground spice loses flavour quickly. Treat that as cookery guidance. None of the eleven culinary ASINs here is a powder. If the recipe says ground coriander, you grind the bag. A pre-ground pot is the shortcut when you will not toast anything. It is the wrong shortcut if you mill 250 g on day one. Just Seed's 2000 seeds are for leaves. Cracking them wastes the only sowing packet in the set.

A light toast

You do not have to toast every pinch. Crushing keeps a raw citrus note, and Rajah reviewers mention aroma when the seeds are crushed or dry-roasted. Toast when you want the smell to open. The Guardian method is a dry pan, or a cool oven, until the seeds smell fragrant, then a cool-down, then the grind. There is no minute chart and no 170°C setting in that column. If the pan smokes and the seeds go dark, they are on the way to bitter. Tip them out and start with a fresh teaspoon. Cool the seeds before a plastic mill or a coffee grinder. Hot seeds clog, and they leave a curry smell in the hopper. A Rajah reseal strip is enough for a 50 g pouch you will finish.
Rajah Rajah Dhaniya 2 × 50 g

Testsieger

Rajah Rajah Dhaniya 2 × 50 g
9.2/10about £1.20
View offer

Jar, best-before and a large bag

TRS reviewers say to use an airtight jar. Natco is 300 g at about £3.99, and TRS is 250 g at about £4.99. Those bags pay off only if the rest stays sealed after each grind. Cookipedia's window is about six months, or up to a year if the jar is sealed. The best-before on the pack still wins. A Rajah note that mentions a date into 2027 is a review of that pouch, not a rule for a sack left open since spring. Grind to order. One curry a month matches the Rajah twin at about £1.20. The organic Spice Mart pouch is 50 g and names the Soil Association. It is easy to finish, at a high price per 100 g. It still fades if you grind it all on day one.

Leaf and seed are different

BBC Food is direct: the seed does not taste like the leaf. The leaf is the fresh herb, sharp and soapy to some people. The seed is warm and citrus, and it sits in garam masala, harissa, pickles and everyday cooking. A soapy reaction to the leaf does not, by itself, rule out the jar. Loving the leaf does not mean the toasted seed will taste the same. Stories about boiling the seeds for swollen feet are anecdotes, not a use. Spice Planet and Spice Mart print culinary-only lines. For a medical question, speak to a doctor. Toast lightly if you want fragrance, cool the seeds, grind what you need, and keep the rest in a jar.

Common questions

Do I have to toast the seeds?
No. Crushing them raw is a fair way to keep a citrus note, and Rajah reviewers mention both crushing and dry-roasting. Toast when you want the smell to open. Stop when they are fragrant. Dark, smoking seeds taste bitter, and the fix is a fresh teaspoon, not a longer roast.
How do I know they are toasted enough?
They smell fragrant and they are still pale to light brown, not black. The Guardian method is a dry pan or a cool oven, then a cool-down before grinding. There is no tested minute or oven temperature on this page. If the pan smokes, they have gone too far.
How do I store a 250 g bag?
Tip it into an airtight jar, which is what TRS reviewers suggest, and grind small amounts. Cookipedia's six-to-twelve-month window is cookery guidance. The date on the pack is the one that counts. A 250 g or 300 g bag is poor value if it sits open after a single curry.
Does the seed taste like the leaf?
No. BBC Food says the seed flavour is unlike fresh coriander leaf. The seed is the warm spice in blends and pickles. The leaf is the herb. A soapy reaction to the leaves is not, by itself, a verdict on the jar of seeds.
Can I grind them in a coffee mill?
Yes, if you cool the seeds first and you accept that the hopper will smell of curry. Hot seeds clog plastic mills. A wipe helps and does not reset the grinder to a neutral coffee smell. A separate cheap mill is the cleaner split if you care about the next breakfast.
Is a resealable spice bag as good as a jar?
It is good enough for a small pouch you will finish, and Rajah notes mention a reseal strip. It is a weaker seal than a jar with a lid. For a 250 g TRS bag or a 300 g Natco bag, move the seeds into a jar after you open them. The strip on a 50 g pouch is a pause.

Related pages

Coriander seeds buying guide

Coriander seeds for curries

Best whole coriander seeds

Coriander seeds

How to grow coriander from seed in a British garden

Sources

Public UK sources named below. amazon.co.uk prices, stars and review counts on these twelve listings were taken from those listings. Page updated 21 October 2026.

  1. RHS, How to grow coriander (retrieved 19 October 2026)
  2. BBC Gardeners' World, How to grow coriander (retrieved 19 October 2026)
  3. Seed Marketing Regulations 2011, Schedule 1 (retrieved 19 October 2026)
  4. GOV.UK allergen labelling (retrieved 19 October 2026)
  5. CAP Code section 15, food claims (retrieved 19 October 2026)
  6. Consumer Rights Act 2015 (retrieved 19 October 2026)
  7. Spice Mart Soil Association schedule, licence DA30091 (retrieved 19 October 2026)
  8. The Guardian, Ask Ottolenghi, 4 May 2024 (retrieved 19 October 2026)
  9. BBC Food, coriander seeds (retrieved 19 October 2026)