- Current location:
How to maintain a vacuum cup
- Daily Cleaning
- After each use, empty the remaining liquid in the cup in a timely manner, clean it with neutral detergent and a soft sponge. Focus on cleaning the gap of the lid's sealing ring (the sealing ring can be removed for separate cleaning to avoid residual stains). After cleaning, dry it before reassembling.
If there is residual odor in the cup, pour an appropriate amount of warm water and 1-2 spoons of baking soda, shake it, let it stand for 30 minutes, then rinse thoroughly with clean water. Alternatively, soak it with lemon slices for 1 hour to effectively remove the odor.
- Long-Term Maintenance
- Do not place the vacuum cup in a high-temperature environment (such as near a stove or in a microwave oven). High temperature may damage the vacuum layer and reduce heat retention performance. Do not put it in the freezer either, as low temperature may cause the cup body to shrink and deform.
- When the cup is not in use, keep the inside dry, loosen the lid slightly (do not fully tighten it), and store it in a cool and ventilated place to avoid long-term compression and deformation of the sealing ring.
If there are slight scratches on the cup body, wipe gently with a soft cloth dipped in a small amount of toothpaste. Do not scratch the inner or outer wall with sharp objects.
- Frequently Asked Questions (FAQs)
- Why is the heat retention effect reduced?
- Possible causes: Damaged vacuum layer (e.g., dropping, impact), aged or improperly installed sealing ring, no preheating/precooling before filling liquid, or lid not tightened.
Solution: Check if the sealing ring is intact and properly installed, and confirm the lid is tightened. If the problem persists, the vacuum layer may be invalid, and you need to contact after-sales service for inspection.
- What to do if the lid is hard to open?
If the lid is hard to open due to negative pressure inside the cup, invert the cup, tap the bottom gently, or soak the lid in warm water for 1-2 minutes. After the internal and external pressure is balanced, try to open it again.
- How to clean scale inside the cup?
- Mix an appropriate amount of white vinegar (or citric acid) with warm water at a ratio of 1:10, pour it into the cup, let it stand for 2-3 hours, then clean it with a soft sponge to remove the scale.