BrewDog has announced demand for its Barnard Castle Eye Test beer was “the most we have ever seen for a beer”.

James Watt, managing director, said: “The traffic crashed our BrewDog website for nine hours. We sold 648,768 cans, which was all we were able to make. This enabled us to make and donate more than 100,000 bottles of hand sanitiser.”

The limited-edition beer was inspired by the Dominic Cummings lockdown rule-breaking incident in May. It was released just days after the prime minister’s aide made his televised press conference appearance.

The launch followed a Twitter vote to name the beer, won by Barnard Castle Eye Test, a reference to Cummings’ claim that he drove for half an hour from his temporary home in Durham to a local tourist attraction to see if he was safe to drive.

Alternative names relating to aspects of the Cummings saga up for consideration were Cummings & Goings, 260 miles and Stay At Homes.

The New England IPA is made with Cascade, Citra, Mosaic and Simcoe hops.

Profits from the sale of 12-packs of the 6% abv beer funded its production of free hand sanitiser for the NHS and health care charities.