304 stainless steel thermos large capacity thermos cup male and female portable outdoor car water pot household thermo

Dear, this item is shipped for free, with a great price and is very economical. If you like it, please place an order.

 Purchasing a thermos flask is actually very simple:

1. Check the uniformity of the interior coating and the polish of the exterior, looking for any scratches or scratches.
2. Check if the spout of the pot is smooth and uniform, as this affects the comfort of drinking water.
3. Inspect the plastic parts. Qualified products should only have a light odor (new pots may have a slight plastic smell), and if the odor is too heavy, it is an unqualified product. Poor-quality plastic parts not only affect the service life but also affect drinking water hygiene;
4. Check the internal gaskets for tightness. Ensure that the plug and the pot are tightly fitted. Rotate the plug in and out to check if it moves freely and if there is any leakage. Fill a pot with hot water and invert it for about 5 minutes or shake it vigorously to check for leakage.
5. Check the insulation performance, which is the main technical indicator of stainless steel insulated kettles. After filling the kettle with boiling water, you can feel it with your hands. If the kettle does not insulate, the lower half of the cup will get hot after two minutes, but the lower part of the insulated kettle will always be cool (Note: It is normal for the part near the spout to have a slight temperature, as the area near the lid cannot be vacuumed).

Use caution: Avoid hitting the pot body, do not drop it, damage the pot body or plastic parts, to avoid destroying the vacuum layer of the pot to make the insulation fail, or cause leakage. When tightening the inner lid or outer lid, apply moderate force, do not over-tighten, to avoid loose screws.

For orders of 50 or more, pricing is negotiable. We offer laser typing and marking services, and can print your company's logo.