To make a concept a little more 'technical' for the maintenance of heat and following the manufacturer's recommendations, so I poured hot water supplied at 90 ° (90 ° exactly 1 :)) in the cold mug (I said that I did not previously scalded as is done to reduce the exchange of calories). Which resulted in a small fall in temperature during filling, or 88 6. 1 h later, the temperature sensor (thermometer culinary) had 70 # 1. After 2 hours: 61 ° 1 3 hours: 50 ° 3: 30 pm: 46 ° Note that the liquid remained in full, hot water is not my favorite drink :)
To drink, you have to press the 'button' that can be seen in the photo, which releases an opening that is flush with the lid on top and closes automatically when you release the pressure.
Other small precision (indicated in the notice): Only mugs brushed stainless steel (structure or colored or painted) are dishwasher-safe. For others, the hand wash is recommended.
