all steel 304 stainless steel thermos cup wholesale russian thermos cup outdoor large capacity gift

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The product's inner liner, inner lid, and outer lid are all made of pure 304 stainless steel, and it supports testing by various professional testing institutions.

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All steel 500ml: Height 24.5cm, Diameter 7.2cm

All steel 750ml: Height 27.5cm, diameter 8cm.

All steel 1000ml: height 29.5cm, diameter 8.5cm.

All steel: 1500ml: height 34cm, diameter 9cm.

② Insulation aging

The inner pot is plated with copper, and the insulation effectiveness lasts about 30 hours. When filled with boiling water at 100℃ from a kettle, the water temperature will drop to about 75℃ after 6 hours and to about 55℃ after 20 hours at a room temperature of about 23℃. Note: The test was conducted with a 1000ml capacity.

Insulation effectiveness is proportional to the initial water temperature and the amount of water, filling warm water or half a cup of water will reduce the insulation effectiveness.