fusels

Recently experienced fusel alcohols in my Saison. I used Belle Saison dry yeast, one pack, pitched at 1.054. Temperature was kept @ mid 60's (I use a chest freezer, nothing fancy). While I know this to be a very temp tolerant strain, having coaxed it up to 90f before with good results, I'm...

I've gotten the same off flavour/scent in two brews; one mead, one gose. It's highly reminiscent of paint solvent/mineral spirits, and describable somewhat like combusted diesel, machine grease, non-ferric/ferrous minerals/metals (or dust of these), being mildly peppery, flat and greasy in taste...