About 4 hours (at room temperature 30deg C, time the product is down to 62deg C -> 30deg C)
Heat in microwave for 2 minutes in 600W/2 minutes and 30 seconds in 500W If temperature is low, heat again by 10 seconds. In case double boiling, when the water get boiled, ignition fire and insert heat retentioner.
Hear Insulation Temperature
5 minutes heating: about 60deg C (30 minutes elapsed), 30 seconds heating: 2 minutes about 43deg C (30 minutes elapsed)
Good points · Heat retaining ability is pretty · It is strong, so it is not so bad · If you use it for the first time · If you do not warm it often it will only partially raise the temperature · Because there are so many 30 entries, If it is a lot ...