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White or brown grit

Updated: 23 October 2026

You have heard that grit and salt are different products, and the sack colour is supposed to prove it. On a UK road they are usually the same chemical. White or brown grit, for the three bags in the [grit comparison](/hub/diy-supplies/grit), is a residue choice: cleaner shoes, or the sandy dirt that some drive reviews treat as grip. This page does not rank a winner and it does not price a kilogram. Products Compared read the amazon.co.uk listings and the saved UK reviews. A qualifying purchase can earn a commission at no extra cost to you. No purity percentage below is taken from Darlies or Laeto, because those listings do not print one.

You have heard that grit and salt are different products, and the sack colour is supposed to prove it. On a UK road they are usually the same chemical.

Our top picks

Darlies Darlies brown grit, 23 kg title

Best overall

Darlies Darlies brown grit, 23 kg title
7.6/10about £17.99
View offer
Laeto Laeto brown grit salt, 20 kg

Alternative

Laeto Laeto brown grit salt, 20 kg
6.6/10about £16.99
View offer
Darlies Darlies white grit, 25 kg

Best value

Darlies Darlies white grit, 25 kg
6.6/10about £16.90
View offer
On this page
  1. 1.Grit on a UK road is rock salt
  2. 2.What the white bag is for
  3. 3.What the brown bags leave behind
  4. 4.The choice, with a condition

Grit on a UK road is rock salt

When a council says it is gritting, it usually means rock salt. National Highways spreads rock salt, with grains no larger than about 6 mm, and it does not use grit in the sense of stone chippings. Staffordshire County Council says the salt looks brown because it is unrefined. A brown sack and a white sack can both be sodium chloride. The brown colour is dirt from the rock, not a second de-icer. Supplier purity figures are not printed on the Darlies or Laeto listings. If the ice is a packed sheet, salt will not lift it. Sand or ash is what GOV.UK suggests for grip. Do not buy brown rock salt expecting gravel.

What the white bag is for

White, in this set, is only Darlies B00AHZER98, a stated 25 kg de-icing bag. The title says ice, snow, and melting. The bullets do not mention residue or BS 3247. Reviewers say the white colour avoids the brown footprints of ordinary grit, and that a thin spread is enough. One review calls the contents salt and sand, so white on the label was not a pure chemical for that buyer. Another bag arrived wet and was thrown away. Colour does not answer the pet question, which is printed and blank, and it does not make the salt kinder to a lawn. Buy this bag when people will walk indoors afterwards. A door mat still earns its place.
Darlies Darlies brown grit, 23 kg title

Testsieger

Darlies Darlies brown grit, 23 kg title
7.6/10about £17.99
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What the brown bags leave behind

Brown, in this set, is Darlies B00AHYTYII and Laeto B0BP89VW6G. Darlies brown is titled for ice and snow. Its bullets do not mention residue. The reviews do: a sandy smear, useful as grip on a tarmac slope, and a mess indoors. One buyer saw gravel change colour after about three months of weed use. Laeto is titled as a weed killer. Its bullets are the only text here that states a slight residue, unlike white grit salt. The same bullets claim BS 3247 and a non-toxic formula, with no certificate in the file. Most Laeto reviews are about weeds, not footprints. After the salt dissolves, you sweep the part that did not. Nothing in the reviews says brown dirt melts ice at a lower temperature.

The choice, with a condition

Choose the white Darlies bag when the salt will be walked indoors and you want fewer brown footprints, accepting that one buyer found sand in the sack. Choose a brown bag when a steep tarmac review's dirt is the grip you want, and you will keep it off the hall floor. Between the brown bags, Darlies is the one whose title says ice. Laeto is the one whose title says weeds. If the title must say ice, Laeto is the wrong brown bag even though the colour matches. White near the door and brown on the steep apron matches what these reviews say. It is not a licence to pile either colour against a border. This page refuses the myth that brown grit is a different chemical.

Common questions

Which of these bags is white, and which are brown?
Only Darlies B00AHZER98 is white, sold as a 25 kg de-icing bag. Darlies B00AHYTYII is brown and titled for ice and snow. Laeto B0BP89VW6G is brown and titled as a weed killer, with de-icing language in the bullets. Colour does not tell you which title is honest. Read the title as well as the shade.
When is the residue a reason to buy white?
When the path leads indoors. Reviewers of the white Darlies bag say they avoid the brown footprints of ordinary grit. Both brown bags are described as sandy or messy, and Laeto's bullets say a slight residue unlike white grit salt. White is the cleaner-shoe choice in this set. It is still salt, and one reviewer said their white bag contained sand.
When do reviews treat brown dirt as grip?
On a steep tarmac drive. A Darlies brown review describes the sandy residue as useful grip there. That is a reason to accept brown on a slope you drive, not a reason to track it through a kitchen. The same review file complains about indoor mess. Grip and a clean hall are different jobs.
Can you quote a purity percentage for Darlies or Laeto?
No. Supplier pages quote figures such as a high white-salt purity or a dirt share for brown salt. Those numbers are not on these amazon.co.uk listings. Repeating them would pretend a certificate exists. The only residue sentence printed on a bag here is Laeto's slight residue compared with white grit salt.
What do you sweep up after brown salt dissolves?
You sweep the insoluble sandy dirt that reviewers describe, the part that was never salt. On a drive it looks like a smear. Indoors it looks like grit on the floor. A door mat and a brush remove more of it than another sprinkle. The dissolved salt itself is what can reach a lawn or a paw, and sweeping does not pull that out of the meltwater.

Related pages

Best grit

Grit for driveways

Grit

Grit buying guide: check title, weight and BS 3247

How to grit a path: clear the snow, then salt thinly

Sources

Public UK sources first, then the amazon.co.uk listings compared on this page. Updated October 2026.

  1. GOV.UK: clear snow from a road, path or cycleway (retrieved October 2026)
  2. Highways Act 1980, section 41 (retrieved October 2026)
  3. BSI: BS 3247:2011+A1:2016 salt for highways (retrieved October 2026)
  4. HSE: slips and trips FAQ (retrieved October 2026)
  5. Met Office: clearing paths and driveways (retrieved October 2026)
  6. National Highways: winter service (retrieved October 2026)
  7. RSPCA: rock salt and pets (retrieved October 2026)
  8. Concrete Society: de-icing salts (retrieved October 2026)