DIY laundry stain remover sticks

What it is

Soap is just fat reacted with an alkali, and that simple chemistry is what lifts a grease stain. A solid stain stick is concentrated soap shaped to rub straight onto the mark, no dilution, no bottle.

A DIY stain remover stick is a bar of grated soap melted with a little washing soda and glycerine, then poured into a small mould or an empty deodorant tube. You wet the stained fabric, rub the stick directly on it, leave it for a few minutes, and wash as normal. The concentrated soap and the alkaline washing soda work together on grease, food, and grass marks before they set.

The base soap matters. A simple olive or coconut oil bar (Fels-Naptha is the classic American laundry bar, while a plain unscented castile bar works elsewhere) gives a clean, effective stick. Adding a teaspoon of glycerine keeps it from drying out brick-hard, which is the most common first-batch mistake.

It is not magic on everything. Old set-in stains and certain dyes resist any pre-treatment. On fresh marks caught the same day, though, a stain stick handles the great majority, and keeping one by the laundry basket means you treat stains while they are still liftable rather than discovering them baked in after a hot dry.