Review on ☕️ CRESIMO 101 Oz Thermal Coffee Dispenser - Insulated Coffee Airpot with Coffee Air Pump - 12 Hour Heat Retention/24 Hour Cold Retention- Stainless Steel Coffee Carafe for Hot & Cold Water and Coffee by Sanny Hoffman

In all cases I preheated them with boiling water and let the boiling water sit in the machine for 5 minutes before refilling with hot drinks. This is a must, otherwise you will lose a lot of heat immediately when filling. So always preheat! We used them for an outdoor winter party and it was great. The day of the party was 15F and windy. They stood on the table a little sheltered from the wind, but even the last drinks were still too warm four hours after bottling to drink them straight away. with meat thermometer. It was 185F. I then put them outside for 24 hours in an outside temperature of 20 to 28 degrees Fahrenheit. After 24 hours the water temperature is still 112F. I have no complaints and I'm very glad we bought a solid all-metal body.