How to remove grease stains
When fresh and recently stained: immediately wash the stained spot with warm water and some drops of dishwashing liquid, rinse, then put it directly in the washing machine.
When stained and dried: treat with Gall Soap before washing:
Wet the stained spot, wet the soap bar, make it foam slightly, rubb the stain with the foamed Gall soap abundantly.
Then put the garment in the washing machine and wash as usual.
Be careful with coloured textiles, Gall soap may discolour, so test on an inconspicious area of the textile. In any case wash immediately the after treatment.