Biorigins Citric Acid. Great for cleaning when diluted in water. Loose granules. Supplied in a paper bag.
Citric acid kills bacteria, mould, and mildew, so it's great for general disinfecting and cleaning. It's also effective at removing soap scum, hard water stains, calcium deposits, lime, and rust. Serves as a preservative in many cleaning solutions, too.
For a strong solution, mix 2 ½ teaspoon of citric acid in 1 cup of warm water. Essential oils can be added. 200g.