FrostFlame — Keep your drinks perfectly hot or ice-cold – enjoy them relaxed all day long | Kalsten
No more cold breaks – for hot enjoyment moments or icy refreshment, anytime and anywhere
Say goodbye to lukewarm drinks that dull your day! With FrostFlame™, enjoy the ideal temperature for hours – whether steaming coffee to kickstart your morning or crisp cold water during your workout. Experience pure freshness or pleasant warmth whenever the moment calls.
Here's why customers love FrostFlame™
✓ Perfect temperature for hours: The groundbreaking vacuum insulation keeps your drinks not just warm or cold – it ensures that the first sip feels freshly served. Enjoy intense flavor without compromise.
✓ Clever lid as a drinking cup: No more annoying accessories! The practical closure transforms in an instant into a cup – enjoy your drink flexibly and without the burden on the go. Maximum freedom in your bag.
✓ Quality steel made from 316 stainless steel: No unpleasant metallic notes – just pure, clear enjoyment. The durable bottle remains rust-free and retains its elegant appearance day after day.
✓ Leak-proof & super portable: Transport your drinks worry-free – whether in your backpack or handbag. The tight closure and practical carrying strap guarantee full freedom of movement without moisture risk.
Clear answers to your questions – honest and straightforward
How long does FrostFlame™ stay hot or cold?
Thanks to state-of-the-art vacuum technology, enjoy up to 12 hours of soothing warmth or 24 hours of refreshing cold – the perfect companion for a long day full of energy.
Is the bottle easy to clean?
We recommend hand washing with warm soapy water and a brush to keep the insulating power intact. This way, your FrostFlame™ stays powerful and looking new at all times.
Is FrostFlame™ really leak-proof?
Absolutely! The specially designed closure guarantees 100% tightness – no annoying stains, no worries. Ideal for everyday use, the office, or outdoor adventures.
Technical details at a glance
Material: High-quality, food-grade 316 stainless steel & durable PP plastic
Colors: White, Pink, Black, Green, or Purple – find your favorite
Dimensions: Compact and practical – 23 x 8 x 6.5 cm
Capacity: Generous 600 ml for all your thirst moments
Scope of delivery: 1x FrostFlame™ stainless steel vacuum bottle with innovative drinking cup closure
Your delivery package
- 1x FrostFlame™ vacuum-insulated stainless steel bottle with comfortable, stylish drinking cup lid in vibrant purple
- No unnecessary extras – pure utility and modern design
- A loyal companion for every day, perfectly combining style and function
Free standard shipping on all orders. No minimum purchase.
- Ships to: United States
- Processing: 1–4 business days (Mon–Fri)
- Transit: 5–10 business days
- Total delivery time: 6–14 business days
- Order cut-off: 5:00 PM PST
You will receive a tracking number by email once your order ships. Please allow up to 48 hours for tracking to update.
See our full Shipping Policy.
You have 14 days from delivery to request a return.
- Email support@open.shop with your order number to start a return.
- Items must be unused, complete, and in their original packaging.
- Return label: flat $9.99 USD, deducted from your refund — nothing to pay upfront.
- Damaged, defective or incorrect items: we cover all return and replacement costs.
- No restocking fees.
- Exchanges: contact us and mention "exchange" — the new item ships once your return arrives.
- Refunds are issued within 7 business days of inspection.
See our full Return Policy.
Questions about your order or our products? We're happy to help.
Open
Hooizolder 214
Drachten Friesland 9205CD
Netherlands
Email: support@open.shop
Customer Service:
Monday to Friday, 8:00 AM – 6:00 PM PST (excluding public holidays)
We reply to all messages within 24 hours on business days. Weekend messages are answered on Monday.
For quick answers, visit our FAQ page or use our Contact Form.
