3L/5L Pump Action Air Pot Flask with Vacuum Insulated, Safety Lock & Carry Handle for Drink, Tea & Coffee by Crystals® (3L Air Pot Flask)

Product Information

A Thermos King will last years but it’s not officially dishwasher-safe, and you’re not even meant to submerge it in water (if you do, you kill the manufacturer’s 50-year guarantee). The cup arrives with a rather complex looking set of instructions of how to dismantle its lid to clean it. The leakproof café cap and the twist valve seal on its lid are so effective that you also have an insulated water bottle, soup carry-cup and a handy little ice caddy for filling with ice cubes, all wrapped up in one package.

The broad mouth was ideal for slotting in a handful of ice cubes in one go – and chilled down quickly with water from the tap.This fab lightweight flask is designed to survive anything, without messing with the temperature of its contents, keeping your brew comfortably hot for 12 hours.

It’s an excellent feature on the 1000ml flask, which although feels a bit top heavy, is lightweight overall and also comes with the option of an adjustable shoulder strap.Key specs – Material: Stainless steel (not officially dishwasher-safe); Capacity: 470ml; Size: 22 x 6. Thoughtful details include a twist-and-pour stopper that lets you pour drinks without removing it, and a space-saving handle. The insulation itself is ‘climate lock’ and passed our test with flying colours, keeping water close to boiling (too hot to drink! Made from multiple layers of BPA-free and rust-proof stainless steel, these flasks should survive years of bumps and knocks, keeping you in hot cuppas and ice-cold drinks season after season. The size you pick should be based on your individual needs, as well as the activities you might be doing while using it.

Would you prefer one that’s tall and thin, or will that end up poking out of the top of your pocket? It’s also non-magnetic, which may disappoint if you would hoped to adorn your Thermos with fridge magnets.This vacuum-insulated flask from Black+Blum is a highly distinctive and eco-friendly option for keeping your food nice and warm. The flask itself has a press-button top, meaning you press it in to pour your drink and then press it again to lock it. Flasks come in a huge range of shapes, sizes and openings, and with varying claims as to how long they'll keep drinks hot or cold. Multi-wall insulation: Double-wall insulation creates a vacuumed layer, which is vital for keeping hot drinks hot and cold drinks cold.