Crystal soda cleans and removes grease. It can be used to unclog plumbing or clean heavily soiled surfaces (hood, trash, oven door, toilet, refrigerator, ...). Its softening effect increases the effectiveness of the usual cleaning agents (detergent, dishwashing liquid). In DIY, the crystal soda facilitates the takeoff of wallpaper and old paintings. Tip: to dissolve the soda more easily in crystals, use lukewarm and not cold water.