I wouldn't expect any problems from pitching both packets. Depending on your source of information, that could be the correct pitch rate. (There seems to be considerable disagreement on that point.) But regardless, overpitching is better than underpitching.
Fermentis reported on a study (https://fermentis.com/en/news/fermentation/rediscover-saflager-w-34-70/) where they tested 34/70 fermented at various temperatures, including 20C (68F). Their conclusion was:
Our study has demonstrated the constant neutral character of SafLager™ W-34/70 over...
I'd never heard about the advantage of underletting preventing dough balls until this thread. I'll be doing my first BIAB batch next week. I plan to lower the grain bag into the heated strike water and hope to take advantage of this effect. You mention "dont rush it". From your experience, do...
I think it's mostly accepted that transferring to secondary risks oxidation and contamination and is not worth the risk unless there is some special reason (adding fruit, etc.).
I've tried many methods of bottle cleaning. I was never completely satisfied until I tried a Papazian method. He wrote about cleaning carboys with 2 oz bleach in 5 gallons of water, with an overnight soak. I use this bleach concentration, but scaled down for just the bottles I am cleaning (one...