How to quickly check the tightness of a thermos cup
Inverted water leakage test Fill the cup with hot water (not to the top, leaving a small amount of air), tighten the lid, invert and let it stand for 2 to 5 minutes, and shake it a few times. If there is no water leakage or dripping, it is considered qualified; if water droplets leak, […]
Common misconceptions about vacuum cups
“The heavier, the better at keeping warm” is not accurate: the weight mainly comes from the thickness of stainless steel, and the vacuum degree is the key. Thermos cups cannot be used to hold carbonated beverages, as strong acids can increase the internal pressure or corrode the inner lining, posing safety risks. Once the vacuum […]
How to choose the capacity of a vacuum cup for autumn
Capacity selection: Suitable for daily autumn scenarios, avoiding being too large or heavy. In autumn, there is no need for large-capacity water storage. Priority should be given to lightweight adaptability, with optimal capacity tailored to different scenarios, balancing water consumption and portability. 300 to 350ml: Mini and lightweight, suitable for girls’ small bag commuting and […]
Taboos for using fingerprint thermos cups
High-temperature sterilization of the cup lid is strictly prohibited The smart fingerprint cup lid contains an internal circuit, chip, and charging interface. It is forbidden to subject it to boiling water steaming, hot water washing, microwave heating, or high-temperature drying. Otherwise, it may damage the electronic components, leading to unlocking failure and circuit short-circuiting. Avoid […]
Common materials for vacuum cup lids
PP plastic (polypropylene) It is the most commonly used material, food-grade, resistant to high and low temperatures, and has good toughness. Most cup lid shells and inner lid bodies are made of PP. Disadvantage: Long-term exposure to high temperatures may cause slight aging. Tritan (copolyester) Transparent plastic, BPA-free, good temperature resistance, translucent texture, commonly used […]
What are the types of lid designs for vacuum cups
Made of food-contact grade material, it has no odor and features a threaded fit. With a silicone sealing ring for leak-proof sealing, it won’t leak even when placed in a bag. Screw cap style It can be used as a small water cup, where boiling water can be cooled down. It comes with a tea […]
