I have a 4 tap kegerator now going on 3 years. About a month or so ago I tapped 4 new kegs of beer and swapped out my empty 20lb tank with a fresh one. Now y beer has a tinny taste to it and the only thing I can point to is the possibility I got a bad tank of co2?
I’ve been using the same supplier for all the years, local welding supply that only charges me $30 a swap, this is the first time I’ve ever had a problem.
All the lines were properly cleaned as well as the tapa, etc. When I did the latest refill on the kegs as well as all the kegs.
I’m assuming even if I degas all the kegs and swap with my other tank the off flavor won’t go away and I’ll have to dump almost 20gal of beer, major league disappointment!
Anyone ever have this issue with co2 causing this problem? Kind of bummed:(
The beers are an IPA, a pale, a pilsner and a Saison. Each fermented with a different strain and each properly pitched with either rehydrated dry yeast or properly sized starters and my tried and true sanitation/cleaning practices so I’m not sure what else might be the issue.
If it was one keg it’d be easier but all 4 at the same time? WTF!
When you cleaned your liquid lines, you definitely rinsed them well, correct? Just thinking that leftover residue could cause that off flavor possibly.
Nope, no water changes at all and all lines were soaked/flushed with PBW and Star San as well as the kegs, purged of o2. I also removed and soaked the taps as part of the process since it had been a few months since they’d been cleaned thoroughly.
Have you started any new medications recently? Certain antibiotics, high-dose vitamin D, antithyroid, diabetes, and a whole slew of other meds have been implicated in creating a metallic taste in your mouth.
I’ll bet there are more than one common denominator. Same fermentors? Same spigots? Same whirlflock? Malt, hops, transfer tubing etc etc keep digging and you’ll find it.
Briefly had an issue with “metallic” flavors. Its source was contact with copper post-fermentation. I was using a short piece to weigh the end of the vinyl tubing down when racking to kegs.
Tom Schmidlin cleared that one up for me.
You swap tanks? If nothing has changed except the co2 then look there first despite others’ experiences. Take a batch and split it. Carb one with the current co2 and prime the other. Serve the second off-system. See if there is a difference.
After reviewing my notes , dates, etc the only common thread on the 4 kegs is the gas and I have no copper in my system or process. I am I have a second keg of two of the same beers on tap sitting chilled in a keezer so I’m going to hook them up to my second tank and sample off picnic taps in a few days and then then a couple weeks and see what happens
No, I have a 10gal breweasy set up. Upgraded recently from my traditional cooler set up that I brewed on for 5 years. 2 batches were on the old setup, 2 on the new. I ferment in buckets and have 4 so the beers were split in different buckets as well.
I know you say there is no rust anywhere but you might want to check again. And even if there isn’t any rust you may need to passivate all your stainless.
The other issue is iron in your water could cause a metallic aftertaste. Perhaps it is time to change you water filter.