Raw, rinse, stone, acid: reading a denim wash

Every denim brand in Pakistan uses the same handful of words to describe washes, and almost none of them explain what the words mean. They are not styling terms. Each describes something that physically happened to the garment in a machine.

Raw

Unwashed after weaving. Stiff, dark, and it will fade to your body over months of wear. The most rewarding denim to own and the least forgiving to buy — it shrinks, and it will transfer dye onto light furniture early on.

Rinse

A single wash to remove loose dye and soften the hand, with almost no fading. It looks close to raw but behaves itself from the first wear. The right choice if you want a dark jean that stays dark.

Stone

Washed with pumice, which abrades the surface and lifts indigo unevenly. Produces the familiar mid-blue with contrast at the seams. Heavier on the fabric than an enzyme wash, so the hand comes out softer and the fabric slightly weaker.

Enzyme

Cellulase enzymes eat away surface fibre instead of stones. Gentler on the garment, more controllable, and the modern replacement for stone washing in most laundries.

Acid

Pumice soaked in an oxidising agent, tumbled dry against the fabric. Produces the high-contrast marbled effect — sharp white against the base shade. Nothing subtle about it, which is the point.

Black and over-dye

Black denim is usually sulphur-dyed rather than indigo-dyed, which is why it fades to grey rather than blue. If you want a black jean to stay black, wash it inside out, cold, and rarely.

Wash names describe a process, not a colour. Once you know the process, you know how the jean will age.