Take-home grocery revenues advanced 14.3% over the 12 weeks to May 17, the fastest rate since 1994, according to market monitor Kantar.

The rise in such goods was accompanied by a fall in sales of food-on-the-go, snacks and drinks, which would ordinarily have totalled £1bn.

In the last four weeks of the period, online grocery sales were up 75% year on year as almost a fifth of UK households placed orders.