Rubber taste

[mlandon98]

IMO, for 3 gallons of wort with US-04 then 5.7 to 9 grams will be a more proper pitch.

Not certain I quite understand how much you actually pitched or if 3 gallons was the actual quantity you pitched to.

I never said how much yeast I pitch because I don't remember. The numbers I gave were hypothetical

 

[Home_Brew_2022]

I may have missed it but you didn't mention what you use for carbonation.
My brewing process is very similar to yours and out of 65+ batches in the last year and a half or so I've never had this issue.
I use S05 on probably 80% of my beers. Some German yeasts and some of the NEIPA oriented yeasts.
I do not use temperature control for any of them because of space constraints.

I've seen the advice that if you can't control your fermentation temperatures then choose yeasts that work for your environment.

Is it possible your bottles are contaminated? It is very tedious but I soak my bottles in an Oxy clean solution to remove the labels and then use a stiff scrub brush on the inside and outside. They then get rinsed with very hot tap water and then sanitized right before bottling. I've also found that certain bottle labels have a nasty adhesive that leaves a film on everything so I avoid those kinds. (Stone for instance)

 

[mlandon98]

I may have missed it but you didn't mention what you use for carbonation.

Is it possible your bottles are contaminated? It is very tedious but I soak my bottles in an Oxy clean solution to remove the labels and then use a stiff scrub brush on the inside and outside. They then get rinsed with very hot tap water and then sanitized right before bottling. I've also found that certain bottle labels have a nasty adhesive that leaves a film on everything so I avoid those kinds. (Stone for instance)

I know, this thread is getting pretty long. I use priming sugar for bottling. I have never had a beer with this off flavor that was also over or under-carbonated.

Contaminated bottles probably can't be the issue. I have had this issue with bottles straight out of the box. I have a combination of reused bottles and virgin bottles from the homebrew store. Labels probably aren't a problem either.