Food-grade 316L stainless steel (corrosion-resistant, oxidation-resistant, acid and alkali resistant, high temperature resistant, odorless, safe for infants and family use)
Outer Layer
304 stainless steel
Vacuum Copper Plated Layer between inner and outer layers
Multi-layer thermal locking structure with double-layer vacuum technology to minimize heat loss
Maintains temperature for up to 24 hours
Tested with 95±1°C water filled to the brim, temperature retention at
Item
Detail
6 hours
≥80°C
12 hours
≥70°C
24 hours
≥50°C
Exceeds national standard GB/T29606-2013 for stainless steel vacuum cups
Food-grade sealing lid with silicone gasket for leak-proof and durable sealing
Does not release harmful substances
Quick and smooth pinch-to-open lid for easy one-handed operation without twisting
Compared to traditional screw lids, reduces effort and time
Upgraded V-shaped high-flow spout for smooth, splash-free pouring
Additional details
10-second fast fill
700ml (internal lab data)
Clean and precise water flow with quick cut-off
Suitable for various beverages including water, coffee, tea, soda, dairy products, lemon water
Material compatibility recommended based on beverage pH and liner material
Low carbon and environmentally friendly materials
Safe contact with all liquids, no odor or contamination
Ideal for brewing and steeping teas such as aged white tea, ripe Pu'er, small green mandarin, black tea, and floral teas
Performance data based on Joyoung internal laboratory testing under controlled conditions (ambient temperature 20±5°C). Actual performance may vary with usage and liquid volume.
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