an insulated stein for carrying and maintaining a constant temperature of a poured beverage or of a canned beverage , featuring a sleeve to slip the can into , an optional insulating vessel to alterntively slip into the sleeve that can by itself contain a beverage poured into the vessel , a d - handle for the user to grasp onto , a hinged lid that can be pivoted upwards or downwards to cover the top of the can or to make the can accessible to the user , and a portable reusable refrigerant disk that fits into a cavity in the bottom of the stein and is held in place by a fitted bottom cap . the stein is made of an injection molded thermoplastic selected for good insulating properties .