Soda Crystals have been around for generations & before the invention of modern washing powder were one of the most popular laundry products around. Soda Crystals are the versatile one bag solution for all your cleaning & laundry needs. Use for sinks & drains washing clothes cleaning in the kitchen gardens & patios & more. Renowned for their ability to cut through tough stains & dirt on grubby clothes and are also perfectly safe for homes with septic tanks. Biodegradable; free of bleach. No Petrochemicals.