Citric acid is one of the most common acids among plants and is found in almost all fruits, wood, mushrooms and even tobacco. Lemon juice contains 5% to 7%. It plays a central role in the metabolism of all living organisms; The human body produces about 2 g per day and breaks it down again. It is also an anti-limescale (it descales, cleans and dissolves limescale) and is a formidable anti-oxidant. Citric acid is completely biodegradable and is one of those household staples that should be found in every home. This is a 1kg bag. Regulatory information: Follow precautions for use. – Manufactured from vegetable raw materials (molasses). – Production and packaging in Western Europe. – Kraft packaging. – Fully biodegradable (OECD test).