Starting Monday at 9am, grocery stores will be permitted to sell drinks with an alcohol content of up to eight percent, an increase from the previous limit of 5.5 percent.
This week, lawmakers approved a reform of the alcohol law, allowing food stores to sell beer, cider, and wine with an alcohol content of up to eight percent.
Food shops have stocked up over the weekend while making shelf space for new products.
The K and S Groups told Yle that they intend to make the stronger alcoholic beverages available as of Monday. Both firms said they are shipping the drinks to stores from central warehouses.
Lidl meanwhile said their alcohol selection will include a few new beers as of Monday, with wine assortments expanding throughout next week.
Lidl's purchasing director, Thomas Heinrichs, said the German supermarket chain plans to introduce a few new beers and several red, white and sparkling wines.
The K and S Groups, which make up the country's supermarket duopoly, also said customers will see a greater wine selection.
The selection of low-alcohol white wines will notably expand at K stores, while the S Group said some of its larger supermarkets will stock up to 200 different wines.
The K Group said it expects low-alcohol wines to sell particularly well. According to K Group's purchasing and sales director, Aki Erkkilä, consumers are increasingly looking for milder products to enjoy with everyday meals, and grocery stores can meet this demand with wines that have an alcohol content of under eight percent.
"This is also important for small shops in urban areas," said S Group's Grocery SVP, Sampo Päällysaho. "Customers have had to travel longer distances before, but now they can make these purchases as part of their regular grocery shopping."
Lidl meanwhile said it does not anticipate any spike in demand. Heinrichs said that overall, the consumption of the soon-to-be-introduced alcoholic beverages is likely to be moderate.
"Some customers are waiting for them. But there hasn't been an overwhelming amount of product requests from customers for these drinks," he said.
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