Stain Remover Soap Ball
100g (4 oz) of pure soap flakes
2 Small lemons
1 large tsp of Alum (available from pharmacies)
This Stain removing soap ball will lift most organic stains on fabric either by soaking overnight or just placing in the wash.
Chop the lemons up into small pieces and remove the pips. Place into a blender or a mortar and pestle along with the soap flakes and alum and crush together until a stiff paste is formed. Roll the mix into balls and place on greaseproof paper and place in a dry dark place to harden for around 7 days.
To use just rub onto the stain and either soak or place into the wash.
By Shellie Wilson. Shellie is the chief creative editor for Craftbits.
Might give it a go!
It will only be as abrasive as you rub the stain. Long term use could be damaging but it is only for stains so it should be fine. I'll also look into the recipe.