JD Wetherspoon is to offer more drinks from UK and non-EU producers and from next month.
It is switching from a range of drinks including Champagne and wheat beers, which are produced in France and Germany.
JDW will replace Champagne with sparkling wines from the UK; Denbies Sparkling Whitedowns Brut and Whitedowns Rose Brut as well as Hardys Sparkling Pinot Chardonnay from Australia.
The pubs will also serve wheat beers from the UK; Blue Moon Belgian White, Thornbridge Versa Weisse Beer and SA Brains Atlantic White.
Wetherspoon will continue to serve Kopparberg cider from Sweden, with Kopparberg having confirmed that it will be producing its cider in the UK post-Brexit.
Alcohol-free Adnams Ghost Ship will replace Erdinger alcohol free beer from Germany.
Wetherspoon chairman Tim Martin said: “This move helps us to broaden our horizons so that we create an improved offer for the two million customers who visit our pubs each week.
“It is the start of a review all products in the next six to 24 months, with the object of making our business more competitive.
“We intend to honour existing contracts with EU suppliers, some of which have several years to run. However, we are starting to make the transition to non-EU trade now.”