Stainless steel lunch boxes have become the first choice for many office workers and students, but the question that everyone is most concerned about is: Is it really leak-proof? Today we will talk about the leak-proof performance of stainless steel lunch boxes, especially the super leak-proof performance of stainless steel lunch boxes produced by Youming Factory.
1. Why is the stainless steel lunch box leakproof?
The sealing structure is the key
Youming factory uses thickened food-grade silicone sealing ring
The edge of the lid is precisely processed
The four-corner lock design is more secure than ordinary buckles
Material selection is very important
304 food-grade stainless steel is used
The box body is formed in one piece, without seams
Anti-deformation steel ring is embedded in the lid
2. Leak-proof test of Youming factory lunch box
Daily use test
Put in food with soup
No leakage when placed and carried normally
No leakage even if tilted 45 degrees
Extreme situation test
Invert for 10 minutes after filling with liquid
Put in a backpack to simulate a bumpy environment
Test results: zero leakage
Long-term use test
After 3 months of continuous use
The sealing performance is still as good as new
The silicone ring is not easy to age and deform
3. How to choose a truly leak-proof lunch box
Look at the sealing design
Youming factory lunch boxes use triple sealing
Silicone ring + lock + anti-overflow edge
More than ordinary lunch boxes More reliable
Check the workmanship details
The edge of the box is smooth and burr-free
The lid fits tightly after closing
The lock opens and closes smoothly without looseness
Actual test method
You can request a sample test before purchase
Fill in colored liquid and shake to test
Observe whether there are any signs of leakage
4. Tips for use
Correct use method
Do not exceed the maximum capacity line when filling
You should hear a "click" sound when fastening the lock
Avoid violent shaking when carrying
Daily maintenance suggestions
Wash promptly after each use
Check the status of the silicone ring regularly
Avoid scratching with sharp objects
5. Advantages of Youming factory
Professional leakproof technology
Owns 12 leakproof patents
Each production line has leakproof detection
Products have passed SGS leakproof certification
Strict quality control
Each batch of products is sampled
Leakproof performance test must meet the standard before leaving the factory
It is recommended to identify professional brands when purchasing, and use and maintain them in the correct way, so that the leakproof performance of the lunch box can be kept in the best condition for a long time.
