... harmful for containing beer and other liquid drinks. The thermal insulation layer is made of imported PUR which can keep the temperature ... keg is made of high-reliable industrial plastic, with PU thermal layer, PE inner-bladder, and beer extractor and bottom beer pouring ... are 2L, 5L, 10L, 20L, 25L, 30L.Inner bladder. PE & thermal layer: PURLogo printing or embossed is available.Healthy to store beer ...