Scottish brewer Brewdog isn’t judgmental if you’ve been drinking bad beer. In fact, they want to help folks ditch dud suds for their brand new dry-hopped pilsner, Lost Lager.

For a limited time, Brewdog is running “Bad Beer Amnesty,” a program encouraging patrons to bring in a can of beer from a “brewery which puts profits over passion & flavor” to trade in for a can of their Lost Lager. Traded-in beers will be donated to a UK University who will then convert the unopened brews into biofuel.