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Vacuum Cup User Manual
Thank you for choosing this vacuum cup. To ensure safe and efficient use of the product and fully utilize its heat/cold retention performance, please read this manual carefully before use.
- Initial Cleaning
- Before using the new cup, remove the packaging and labels first. Clean the cup body, lid, and sealing ring with a soft sponge dipped in neutral detergent (such as dishwashing liquid). Do not use sharp tools like steel wool or hard bristle brushes to avoid scratching the inner wall coating.
After cleaning, rinse thoroughly with clean water, air-dry upside down, or wipe dry with a clean soft cloth to prevent residual detergent from affecting water quality.
- Preheating/Precooling (Enhance Heat/Cold Retention)
- If using the cup for hot water (recommended water temperature ≤ 95°C; do not fill with boiling water), first pour a small amount of hot water into the cup, shake the cup for 10-15 seconds, then pour it out, and then fill with a sufficient amount of hot water. This can improve the heat retention effect by 20%-30%.
If using the cup for cold drinks (recommended temperature ≥ 0°C; do not fill with dry ice or frozen liquids below 0°C), first pour a small amount of cold water or ice water, let it stand for 10 seconds, then pour it out, and then fill with cold drinks for better cold retention.
Liquid Filling Specifications
- It is recommended to fill the liquid to 1-2 cm below the cup mouth. This prevents liquid from overflowing when tightening the lid and avoids leakage or scalding caused by the expansion of high-temperature liquid.
Do not fill with corrosive liquids such as carbonated drinks, soy sauce, vinegar, or fruit juice. These liquids may corrode the inner wall coating, affect heat retention performance and service life, and easily produce gas to increase the pressure inside the cup, which may cause splashing when opening the lid.
- Lid Operation
- When tightening the lid, rotate it clockwise until you hear a "click" or feel it fit; there is no need to apply excessive force to avoid damaging the threads or sealing ring.
Before opening the lid, if the cup contains high-temperature liquid, it is recommended to loosen the lid slowly by 1-2 turns first to release the pressure inside the cup, then fully open it to prevent hot water from splashing and causing scalds.
- Usage Scenario Notes
- When carrying the cup daily, ensure the lid is fully tightened to avoid tilting, inverting, or violent collision, which may cause leakage.
- It is not recommended to store liquids in the vacuum cup for a long time (more than 24 hours), especially perishable drinks such as milk and soybean milk. These should be consumed and the cup cleaned in a timely manner to prevent bacterial growth.