Majestic Wine Plc has said it will import an extra £5 million to £8 million of stock to ensure it is covered against any problems with deliveries following Britain's exit from the European Union.
Britain is still at risk of falling out of the world's biggest trading bloc without a formal exit deal and companies are having to plan for the chance of substantial interruptions to the smooth flow of goods and parts across its borders.
Some 55% of the wine consumed in the UK is imported from the European Union, and Britain's Wine and Spirit Trade Association has campaigned against a no-deal scenario, which it says would be disastrous for the UK industry.
Get a FREE Digital Subscription!Enjoy full access to Hospitality Ireland, our weekly email news digest, all website and app content, and every digital issue.
"We were planning for tough times and we're investing through tough times," Majestic chief executive Rowan Gormley said in the company's results release, stressing the company was doing well in a tough market.
The results showed a small pre-tax loss for the six months that ended on October 1 compared to a profit of £3.1 million last year.
Adding to the cost implications of a broadly weaker British pound for importers is the fall in discretionary spending by Britons, who are tightening their purse strings amid rising prices of daily essentials and muted pay rises.
Majestic also said that profit at its Naked Wine business would be hit by a speed up in investment. The firm expects to spend £20 million or higher by the end of 2019 to bring new wine drinkers to the unit.
"The weak performance in Majestic Retail is a surprise and should have been better considering the summer," Liberum analyst Wayne Brown said, cutting the stock's rating to "hold".