Dgallo
Instagram: bantam_brews
If you’ve never used temp control to manage your beers, you’re only comparing beers you’ve made where they can get hotter than ideal to other beers you’ve made without temp control. You may not getting any off flavors or you might be and are unable to notice them. The only way to know for sure would be to do one where your like 70 for an entire fermentation and then compare.I wrote Fermentis a several years ago and ask them about the disparity between the temps on their yeast packets and their website and other documentation.
Their answer was that doing their continual testing of their yeasts, they've found that the older findings suggesting lower ideal range of temps was no longer valid.
They also said they had too many sachets pre-printed and they were going to use all the old sachets until they needed to print more. It was their opinion and justification for using the old packets that the narrower range of temps on their packets still made good beer.
I can't argue with that reasoning or justification. But I can argue with you guys that claim I have to keep my pale ales and IPA at lower temperatures to get a good beer. I have done plenty that have briefly reached 74 - 76°F and they were very good beers with no undesirable notes.
Beer only gets hot during the krausen. I haven't had any krausen that lasted longer than half a day. Not sure why I need to control the temps continually for these beers.
Fermentis also said that the website information was the correct information to use regardless of what the sachet says. Here is the current one for S-04.
https://cdn.bfldr.com/G7S7MSWL/as/b5bgjw88vgcpnm9c7csjkt5k/SafAle_S-04_TDS_-_Technical_Data_Sheet
I noticed that Northern Brewer links to the old data sheet with the incorrect information. and also gives the incorrect information.
MoreBeer states the correct information but also links to an old data sheet.
Again though if you’re happy with your beer, nothing I say matters, but there’s a reason breweries invest in glycol and jacketed fermenters. If they felt they could produce the same beers without it, they would save the money due to price point and profit margins alone