Food retail sales have climbed as shoppers eat and drink more at home rather than going out as the effects of the Covid pandemic continue to play out.

The end of the government’s Eat Out to Help Out scheme designed to boost hospitality industry sales contributed to a 9.4% increase in grocery sales in the 12 weeks to October 4, market monitor Kantar reported. In the final four weeks of the period the rise was 10.6%.

Kantar head of retail and consumer insight Fraser McKevitt said: “Shoppers are moving a greater proportion of their eating and drinking back into the home. This is likely a response to rising Covid-19 infection rates, greater restrictions on opening hours in the hospitality sector and the end of the government’s Eat Out to Help Out scheme.”

He observed that alcohol sales were worth £261m more to grocers this month than last year, as a 10pm curfew was imposed on pubs, bars and restaurants in a bid to stop the spread of Covid-19.

Online sales in the past month surged 76% year on year. Kantar said that a fifth of households ordered groceries online and observed: “The proportion of sales made digitally remains unchanged from last month at 12.5%, suggesting that many shoppers are choosing to stick with deliveries as the pandemic develops.”

Ocado, whose joint venture with Marks & Spencer went live last month as it split with former partner Waitrose, increased sales by 42% over the 12 weeks, upping its year-on-year market share from 1.4% to 1.8%.

Kantar reported that Waitrose was “the fastest-growing retailer online this month”. Waitrose’s sales, including through its stores, were up 8.9% and it held its market share steady at 5%.

McKevitt said: “Ocado has increased the number of shoppers using its service in the latest period – the only retailer to do so – adding 22,000 customers. Its new partnership with Marks & Spencer is no doubt part of the appeal.

“Waitrose is keeping pace with its own online offer. Although starting from a relatively low base, it was once again the fastest-growing retailer online.”

Among the big four, Morrisons led the way with sales growth of 12%, taking its share from 9.9% to 10.1%. Asda trailed among the big four, generating sales growth of 5.4% taking its market share down from 15% to 14.4%.

Iceland performed strongly, as sales advanced 17% and its market share rose from 2.2% to 2.3%.

Neighbourhood stores continued to increase sales. The Co-op was up 9.3%, with market share unchanged at 6.6%. Symbol group and independent retailers notched up sales growth of 20% and increased market share from 1.8% to 2%.

Value specialist Lidl’s sales rose 12% – it has been in double-digit growth since last December – and its market share edged up from 6% to 6.1%. Aldi’s sales rose 7.8% but its market share inched down from 8.1% to 8%.