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Stainless Steel Vacuum Bullet Flask 500ml holds internal temperature using double-wall vacuum insulation. 304-grade steel construction prevents corrosion from constant liquid contact. Twist-and-pour lid mechanics stop leaks while pouring hot or cold fluids.
Key Features
- Thermal Retention: 12-hour heat and cold stability for stored liquids. Keeps tea hot through long work shifts.
- 304 Steel Body: Food-grade rust-resistant stainless steel inner and outer walls. Stops oxidation despite high BD humidity.
- Twist-and-Pour Lid: Leak-proof sealing mechanism with a controlled pour spout. Prevents spills inside bags during movement.
- Compact Dimensions: 500ml capacity with a 280g total dry weight. Fits standard side pockets without adding bulk.
- Anti-Skid Base: High-friction bottom surface for stability on flat areas. Grips smooth desks to avoid accidental tipping.
Frequently Asked Questions
How long does a vacuum flask stay hot?
Double-wall insulation maintains liquid heat for up to 12 hours. Internal temperatures drop gradually after this window ends.
Is stainless steel flask safe for tea?
304-grade stainless steel doesn't react with acidic or hot beverages. BPA-free plastic components keep the liquid's flavor unchanged.
