Make up a solution of 1 part vinegar to 5 parts warm water and sponge carefully but thoroughly (test for colourfastness on the back of the sofa), then go over with a clean cotton cloth and clear warm water.
Allow to dry naturally.
If you have a household tip that you would like to share with Aggie’s followers – send it to us for publication – go to https://aggiestips.com/do-you-have-a-tip-to-share-with-aggie/