Radio Berlin 88.8 (2019)
"Salmiak (ammonium chloride) is a rock salt. It is industrially produced for the food industry, a white sour-salty tasting fine granulate. A maximum of 7.99 percent salt is permitted in the recipe, this must be labelled as "Extra strong adult liquorice - not children's liquorice".Die Kolja Kleeberg Show: Gut leben in Berlin"