White clothes that have turned grey

Short answer: White turns grey because dye from other clothes settles in the fibres, wash after wash. Wash white on its own and avoid overfilling the machine, and it keeps its fresh colour.

The colour comes from the neighbour

Even clothes that do not visibly bleed give off small amounts of dye to the water. It settles in everything white in the same machine, including bamboo sweatpants for women. The change is slow, so you notice it only when white and grey lie side by side. The cause is rarely the fabric itself.

A full machine makes it worse

When the drum is packed, the dye is not rinsed out but pressed into the fibres. It shows fastest on thin things such as bamboo socks, which have little fabric to hide it in. Give the laundry room to move so the water can rinse through. A machine that is not crammed makes a real difference.

How to get white back

Wash white alone at forty degrees with a half load and an extra rinse. Two rounds make a visible difference, also for bamboo slips. Use an ordinary detergent and no more than recommended, so no residue stays in the fabric. Let it dry in fresh air and see whether the grey tone has become lighter.

Wash white on its own

The most important rule is never to wash white with colours, not even light ones. Even a little colour in the water settles in the white fibres over time. Gather white in a basket of its own, and it is easy to wash together once the basket holds half a machine. That keeps the routine simple.

Half a load and an extra rinse

A half load gives the laundry room to move, and the water can rinse the dye away. The extra rinse removes what would otherwise stay in the fibres. It costs a little time and water, but it is the most effective way to keep white white. Use the extra rinse every time you wash white.

Do it in two rounds

If white has already turned grey, it helps to wash it twice in a row with the same settings. The first round loosens part of the dye, and the second rinses it out. Expect a visible difference, but not a brand new garment. Do not repeat it more than needed, as every wash wears the fabric a little.

Use bleach sparingly

Bleach makes white lighter, but it weakens the fibres. Use it no more than a couple of times a year, and read the instructions before you dose. If you want clothes to last, it is better to prevent with sorting than to rescue with bleach afterwards. Sorting is the gentler way.

Prevent it from the next wash

The best approach is to stop the greying before it starts. Sort white out, fill the machine only halfway, and use the extra rinse. Then the dye gets no chance to settle, and the clothes stay light for longer. Sorting takes only a moment, and the reward is white clothes that look fresh.

Frequently asked questions

Does bleach work

It makes white lighter but weakens the fibres. Use it a couple of times a year at most, and prevent with sorting so you need it less.

Can grey white become fully white again

Rarely fully, but two to three shades lighter is realistic. That takes washing alone, with a half load and an extra rinse, preferably in two rounds.

Does washing hotter help

No, heat releases more colour from the other laundry in the machine. Wash white at forty degrees and alone, and there is no dye to soak in.