These stains are very difficult to remove, especially from light-coloured and finely-finished goods. From woollen and mixed fabrics, they are taken out by moistening them with a mixture of 1 part glycerine, 9 water, and i part aqua ammonia. This mixture is applied to the goods by means of a brush, and allowed to remain for 12 hours (occasionally renewing the moistening). After this time, the stained pieces are pressed between cloth, and then rubbed with a clean rag. Drying, and, if possible, a little steaming, is generally sufficient to thoroughly remove the stains. Stains on silk garments which are dyed with delicate colours, or finely finished, are more difficult to remove. In this case 5 parts glycerine are mixed with 5 parts water, and 1/4 part of ammonia added. Before using this mixture, it should be tried on some part of the garments where it cannot be noticed, in order to see if the mixture will change colour. If such is the case no ammonia should be added. If, on the contrary, no change takes place, or if, after drying, the original colour is restored, the above mixture is applied with a soft brush, allowing it to remain on the stains for 6 or 8 hours, and is then rubbed with a clean cloth. The remaining dry substance is then carefully taken off by means of a knife.
The injured places are now brushed over with clean water, pressed between cloths, and dried. If the stain is not then removed, a rubbing with dried bread will easily take it off. To restore the finish, a thin solution of gum arabic, or in many cases beer is preferred, is brushed on, then dried and carefully ironed. By careful manipulation these stains will be successfully removed.