Vacuum Flasks

Double-wall vacuum insulation seals a vacuum between the inner and outer stainless steel walls, removing the medium through which heat transfers. The result is a flask that keeps a hot drink at a drinkable temperature for up to 12 hours and a cold drink cold for up to 24 hours, whether on a desk in a warm office or in a pack outdoors. Capacities run from compact 350ml for commuters and desk workers through to large containers approaching 2 litres for outdoor activity or site work. Exterior finishes include natural brushed stainless, powder-coated matte, and polished variants. Printed branding applies to coloured and powder-coated exteriors. Engraving removes the surface layer on natural stainless for a permanent, precise mark that stays sharp through years of use.

The flask someone fills before leaving home and carries all day ends up in the best position for branded impressions. It sits in the hands of the person themselves, on their desk in front of their colleagues, on the table in client meetings, and in every outdoor or active setting they take it into. That range of settings is hard to reach with any other single promotional product.

One style in this range uses recycled stainless steel, giving organisations that want their branded products to reflect their environmental commitments a genuinely sustainable flask option.

Good to Know

What is the difference between vacuum-insulated and single-wall stainless steel flasks?

A single-wall flask holds liquid but doesn't maintain temperature, losing heat or cold within an hour. A double-wall vacuum-insulated flask seals a vacuum between two metal walls, dramatically slowing heat transfer and keeping drinks at their starting temperature for many hours.

Which branding method suits a vacuum flask best?

Powder-coated and coloured exteriors work well with printed branding, giving the artwork a solid background and the ability to reproduce complex logos. Natural stainless steel pairs with laser engraving, which cuts permanently into the metal for a precise mark that outlasts print under heavy daily use.

What capacity range works best as a corporate gift?

The 500ml to 750ml range covers most everyday drinking needs in a portable size, making it the broadest choice for general gifting. Smaller 350ml options suit desk use, while larger 1 litre options suit active and site-based roles where the extra capacity is genuinely needed.

Do vacuum flasks require any special care to keep the insulation performing?

Hand washing is recommended over dishwashers, as repeated machine cycles can affect the seal and exterior finish over time. The vacuum is sealed at manufacture and needs no maintenance, though significant physical impact to the body can compromise the seal and reduce insulation performance.