Here it is another new technology, chocolates after printing will dry very fast with coating agents for food sprayed on them before printing.
Video 5: it shows the coating agent for food sparying on chocolate before printing, the coating agent for food is edible and it is transparent color. Spary bottle, spary can or spary gun can be used to do it. After sparying, it will dry at once, which means you can print on it at once. The main function of coating agents for food is to make the printed chocolate or other food products with cocoa butter dry much faster.
Video 6 : it is printing onto chocolate with coating agent sparyed, by which, it can dry much faster.