So have any of you ever experienced contaminated gas infecting your beers?
Asking for a friend
No seriously, I'm asking for a friend, a fellow BJCP judge from CRABS in Balmer moved to Jonesborough TN. A very competent brewer, he started using tank refills down here in TN and after a month on tap his beers started tasting funky. He's been here in TN and brewing for 2 years (obviously planned a lot better than I did) and ran out of CO2 for dispensing. The vendor will give no details on where he gets the gas. Any ideas folks?