The elder generation of Oud Beersel customers came to the brewery to purchase lambic straight from the wooden barrels. In the past, bars served the still lambic from their own wooden barrels but that tradition was disappearing. After 10 years of looking for the right solution, Oud Beersel launched the exclusive BEER BOX, a pressure resistant bag-in-box solution that allowed Oud Beersel to ship unpasteurized lambic through distributors and importers.

At the same time, Oud Beersel started innovating with Infused Lambic. Since then, many versions of lambic infused with spices, flowers and tea have been launched.