Changes

Often a pellicle will form on the surface of the beer inside the bottle shortly after packaging. This is no different than the pellicle forming in the fermentation vessel, and presumably occurs because of the oxygen in the headspace of the bottle. The pellicle will eventually settle out either on it's own during aging, or when the bottle is refrigerated. Other than for aesthetics, there should be no concern if this happens. Pierre Tilquin of Guezeria Tilquin suggests that storing bottles on horizontally their side during bottle conditioning will prevent a pellicle from forming. This is a common practice among lambic brewers <ref>[https://www.facebook.com/groups/MilkTheFunk/permalink/1210209235673955/?comment_id=1210248462336699&reply_comment_id=1210254505669428&comment_tracking=%7B%22tn%22%3A%22R8%22%7D Conversation with Pierre Tilquin and Raf Soef on MTF. 01/08/2016.]</ref>. Gently shaking the bottles so that the pellicle dissolves into the beer will also destroy the pellicle without harming the beer.