1. Clean the thermos: First, clean the inside and outside of the thermos thoroughly to make sure there is no dirt or residue. Use a mild detergent and a soft brush for cleaning. Be careful to avoid using too harsh detergents that may damage the thermos. 2. Check the seal: Check whether the seal of the thermos bottle is intact. If the seal is aged or damaged, the insulation effect may be reduced. If you find a problem, you can try replacing the seal with a new one. 3. Preheat the thermos flask: Before using the thermos flask, you can preheat it with hot water for a period of time, then pour out the hot water, and then pour in the liquid to be kept warm. This can improve the insulation effect of the thermos bottle. 4. Use an insulated bag or sleeve: If the thermal insulation effect of the thermos bottle is still not satisfactory, you can consider using an insulated bag or sleeve to increase the thermal insulation effect. These attachments can provide an extra layer of insulation to help maintain the temperature of liquids.
Post time: Oct-23-2023