Hot for hours.
Know exactly how hot.

A thermos (or vacuum flask) is a double-walled container with a vacuum gap between the walls. That vacuum barely conducts heat, so it slows down how fast a hot drink cools or a cold drink warms up - that's what keeps drinks at temperature for hours instead of minutes.

Thermoscup uses double-wall 304 stainless steel vacuum insulation, the same principle behind any quality thermos flask. It's rated to keep drinks hot for up to 12 hours and cold for up to 24 hours, so your morning coffee is still warm at lunch.

The wide mouth opening is designed for easy cleaning - hand wash with warm soapy water and a bottle brush, rinse thoroughly and air dry with the lid off. The tea separator lifts out to clean separately. Avoid dishwashers and abrasive cleaners, which can damage the seal and the LED display.

Yes. All parts that touch your drink are BPA-free, food-grade 304 stainless steel.

A small digital display is built into the cap and shows your drink's live temperature in °C when you touch it - no buttons, no app, no charging cable to lose.

One Thermoscup Smart LED Flask in your chosen colour, with its removable 304 stainless steel tea separator fitted.

Most insulated flasks give you no way to check the temperature without opening the lid. Thermoscup adds a live LED display built into the cap, plus a removable stainless steel tea separator, as standard.

30 days to return an unused Thermoscup in its original condition for a full refund. Your statutory rights are unaffected. See our Returns Policy for the full details.

We currently deliver within the UK only. See our Shipping Policy for delivery timescales and costs.