All products are in stock, hurry up and order! Dear customers, please note! There may be watermarks inside the cups you buy, which are left over from our testing of each cup for insulation when we ship them. This is not from use, and all new cups have a slight smell. Please rest assured that this is normal and does not harm your health. Thank you for your understanding and support!

Insulation Cup Usage Instructions

1. Before use, please clean the product inside thoroughly, and heat it for 1-2 minutes with hot water to appropriately raise the temperature of the insulated cup, which can better improve the insulation effect.

2. If the water is too little or too much, it will affect the insulation effect. The insulation effect is achieved when the water volume is 1-2CM below the bottleneck.

The contents of the lunch box should not be either too little or too much; the capacity should be either three-fourths or four-fifths of the content.

3. Pour water into the bottle and tighten the cap slowly and firmly to prevent leakage.

4. When using, please add a spoonful of baking soda to warm water from time to time, disinfect the cup while the lid is open, and then thoroughly clean with warm water.

5. Cleaning cups with vinegar once a month is very beneficial for hygiene and long-term use. When cleaning, you can add 1-2 drops of vinegar to warm water to dilute, and then pour it into the insulated cup.

Pour the vinegar into a cup, open the cap, and let it stand for 30 minutes. Then, use a soft cloth to wipe it clean. Vinegar cleaning is very effective for removing fine particles and bacteria.

6. Because of the temperature difference between the vacuum flask and the external air, condensation may occur on the middle cap due to the generation of steam, which is a normal phenomenon.