The Cello Flipstyle Vacuum Flask – 750 ml is an ISI-certified thermosteel flask from Cello — one of India's most established drinkware brands with over two decades of vacuum flask experience. Built from Grade 18/8 (304) stainless steel with Cello's proprietary Thermoseal double-wall vacuum insulation with copper coating, the Flipstyle keeps beverages hot or cold for up to 24 hours. At 750 ml, it holds enough for 3 to 4 standard servings of tea, coffee, or water — suitable for an office morning, a day of travel, or an outdoor outing without refilling. The Cello Flipstyle is a 750 ml ISI-certified vacuum flask from Cello's thermosteel range, featuring a flip-style lid mechanism that provides easy one-hand opening and a reliable spill-resistant seal for everyday carry. Like the Instyle, it is built from Grade 18/8 stainless steel with double-wall vacuum insulation and includes a carry jacket. The Flipstyle is a well-rated everyday flask at an accessible price point in Cello's line-up. The flask is ISI certified by BIS, confirming it meets Indian safety and quality standards for stainless steel vacuum flasks.
The Cello Flipstyle's secure flip-style lid mechanism sets the tone for how it is used in daily life. The Flipstyle's secure flip mechanism is designed for reliable daily use — easy to open with one hand and secure enough to carry in a bag without risk of accidental opening. The carry jacket adds grip and an additional layer of thermal protection. All steel components are rust-proof, odour-free, and BPA-free, ensuring beverages taste exactly as poured with no metallic aftertaste. The double-wall vacuum eliminates exterior condensation, so the flask can be placed on documents or in a bag without causing moisture damage. Cello recommends pre-conditioning the flask with hot or cold water before first fill, and keeping it away from carbonated beverages for long-term maintenance.
ISI certification from BIS confirms the Flipstyle meets national safety and quality standards for vacuum flasks. Grade 18/8 stainless steel provides rust resistance, odour neutrality, and food-safe performance across years of daily use.
Cello's Thermoseal technology combines copper coating with double-wall vacuum insulation to deliver up to 24 hours of hot or cold temperature retention. The exterior remains condensation-free, preventing moisture from reaching bags and surfaces.
At 750 ml, the Flipstyle holds enough for 3 to 4 standard cups of tea, coffee, or water — enough for a full office morning or a day of travel without the need to find a refill point.
The flip-style secure lid mechanism — reliable for daily bag carry with one-hand ease of use. Reduces spill risk during bag carry and active movement, making it a reliable daily companion for commuters, office workers, students, and travellers.
The flask is BPA-free throughout and comes with a thermal carry jacket for additional insulation and grip. The stainless steel body is rust-proof and does not absorb food odours, keeping beverages tasting fresh day after day.
The Cello Flipstyle 750 ml Vacuum Flask is available at Girdhar Das & Sons, Varanasi's trusted kitchenware store since 1970. We carry Cello's full vacuum flask range alongside flasks from Borosil, Milton, and other leading brands. All products are 100% genuine and brand-authorised. Shop at gdsons.co.in or visit us at W.H. Smith School Road, Sigra, Varanasi.