| Prouduct Name | Stainless Steel Tumblers |
| Volume | 350ml; |
| Material | double wall stainless steel |
| Size | 10*5/12*8cm |
| Weight | 900g |
| MOQ | 9pcs |
| Color | custom |
| Certificate | USA & EU food grade test passed; |
| Function | drink, beer, water, coffee, tea |
| Feature | keeping cold and hot |
| Usage | indoor & outdoor |
| Delivery time | 35 days |
A safe and durable way to use it is to use a thermos for water. The temperature of general household hot water is around 100℃, while the high temperature resistance standard of 304 stainless steel at 800℃ is much higher than that for household use. In general, 304 and 316 stainless steel thermos will not affect your health if you use the thermos correctly. In contrast, the 304 thermos is more cost-effective and more practical. After adding water to the cup, tighten the cork and lid clockwise, and place the cup flat on the table, there should be no water leakage; the lid and the mouth of the cup should be flexibly screwed without gaps. See if the tightness is good. Check whether the vacuum insulation of the cup is good. Pour boiling water into the thermos and tighten the cork or lid clockwise for 2-3 minutes. Touch the outer surface of the cup with your hands. If the cup is obviously warm, it means The product has lost its vacuum and cannot achieve a good thermal insulation effect.
At present, the stainless steel cups on the market are mainly made of 304 stainless steel. 304 stainless steel is a nationally recognized food-grade stainless steel. It has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; good hot workability such as stamping and bending, no heat treatment Hardening phenomenon (use temperature -196℃～800℃). the stainless steel material currently on the market is substantially large Parts are stainless steel;
