... at least 24 hours --Certificate:FDA,LFGB,ISO9001:2008 Coffee pot double wall stainless steel,vacuum coffee potCapacity:BES-166 1 ... the real manufacturer in vacuum flask, coffee pot, travel mug, air pot, thermos, wide mouth pot, sport water bottle, gift set, food flask ... to contact with us at any times. SS vacuum Coffee Pot with handle,lid with button