1 thermal insulation effect (24 hours /6 time): In room temperature 20 degrees +-2 degrees, I fill a product with boiling water to a bottom end not to do, and the ※ thermal insulation effect is temperature of hot water when 湯温 left you unattended since 95 degrees +-1 degrees in the state that I did to put it long for six hours more than 45 degrees Celsius more than /73 ℃.