On April 23, 1516 the Ducal brothers Wilhelm IV and Ludwig X issued a decree called the “Reinheitsgebot,” or “Purity Law.” This place an end into the adulteration of beer. From then on, only barley (and the malt made from it), hops and water can be utilised to supply it. https://vawoo.com.au/product/arizer-xq2-desktop-vaporizer/