HAS THE OPCIÒN WARMING Y8 ALSO MAKES IT VERY WELL. COOL I WOULD SAY RATHER KEEPS THE COLD AND WITH THAT I MEAN THAT THE CAN OR BOTTLE SHOULD U A BE COLD TO PUT IT INSIDE. AND OF COURSE YOU MUST PLUG WITH LONG TIME BEFORE IF YOU WANT WHEN GOALS DENTEO TIN YOU FOLLOW HOLDING UP IN COLD.