Malic acid is one of the natural or nature-identical acids, which is often contained in commercially available descalers. Like citric acid, malic acid is produced during a fermentation process or during a metabolic process in your own body.
These acids dissolve lime and are food-safe and harmless as a residue in the machine.
You can find out how to clean your machine with citric acid on our blog.
Cleaning and maintaining the washing machine: five simple tips
