Glycerine & propylene glycol are versatile ingredients that every homebrew shop should stock. These two compounds are essential for creating smooth, well-balanced brews and enhancing flavors. PG has so many different uses that it is supposed to also attract new and returning non-homebrewers. Glycerine is known for its ability to add body and sweetness, making it a favorite among brewers. Propylene glycol, on the other hand, is excellent for stabilizing and preserving your creations.