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With a double-wall vacuum structure, the HighGrade Stainless Steel Vacuum Flask 1 L maintains liquid temperatures for 24 hours. Under the 18/8 food-grade steel shell, water stays neutral without rusting. This 1000ml hot and cold water bottle provides capacity for full-day hydration cycles.
Key Features
- 24-Hour Temperature Retention: Double-wall vacuum insulation blocks heat transfer for 24 hours. Ice stays solid through long work shifts.
- 18/8 Stainless Steel: High-density 18/8 stainless steel construction resists internal corrosion. It won't leach metallic flavors into water.
- Leak-Proof Screw Cap: Threaded screw cap seals the 1000ml mouth against leaks. Keeps bags dry despite road dust exposure.
- Shatter-Proof Build: Rigid steel exterior survives impacts that break glass-lined containers. The flask remains functional after accidental drops.
- BPA-Free Safety: Toxin-free internal components eliminate chemical leaching into hot liquids. Drinks remain safe for consumption.
Frequently Asked Questions
How long does a vacuum flask keep water hot?
This 1000ml hot and cold water bottle maintains heat for up to 24 hours. Double-wall insulation prevents external air from cooling the contents.
Is stainless steel flask better than glass?
Stainless steel is shatter-proof and more durable than glass linings. It survives drops on hard surfaces that break traditional glass flasks.
