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Your Coffee. Your Temperature. Your Cup — 600ml of Precision-Engineered Hydration.
The OTE Torch is not just another insulated tumbler. It is a 600ml vacuum-sealed system built around one question: how do you keep a drink at exactly the right temperature, for exactly as long as you need it?
SUS316: The Inner Wall That Outlasts the Rest
Most tumblers use 304 stainless steel. The OTE Torch uses SUS316 — a marine-grade alloy with added molybdenum that delivers significantly higher resistance to corrosion, oxidation, and odour absorption. For anyone who drinks coffee daily, switches between acidic juices and hot tea, or simply refuses to replace a tumbler every year, this is the material that matters.
7 Layers. One Locked-In Temperature.
Cold drinks start at 5°C. After 3 hours: 8.5°C ± 1°C. After 6 hours: 12°C ± 1°C. After 9 hours: 15°C ± 1°C.
Hot drinks start at 100°C. After 6 hours: 60°C ± 1°C. After 12 hours: 32°C ± 1°C.
That is not a marketing claim. That is OTE Laboratory data, from a 7-layer vacuum structure spanning SUS316 inner wall, oxidation-resistant layer, vacuum insulation, 304 outer shell, automotive-grade primer and topcoat, and UV protective clear coat.
One Lid. Two Ways to Drink.
Flip between the SUS316 stainless steel straw — antibacterial, odour-free, and engineered for gentle sipping — and the direct-drink opening for a full, unobstructed flow. The dual-mode lid seals leakproof with a dust-proof silicone cap that keeps the straw clean between uses. No loose caps to lose. No drips in your bag.
Designed for the Hand That Holds It.
The ergonomic streamlined body sits comfortably in a single-hand grip. The silicone base pad grips smooth surfaces and prevents scratches. The 88.5mm wide mouth fits large ice cubes with room to spare and makes hand-washing genuinely easy — no bottle brush gymnastics required.
Everything in the Box.
600ml OTE Torch vacuum tumbler
SUS316 stainless steel straw with dust-proof silicone cap
Straw cleaning brush
BPA-free PP lid with dual-mode opening
FDA, CNAS, and EU food-contact safety certifications











