What are the best pH pitching levels for brewing beer? Jade January 03, 2023 14:08 Updated The best pre yeast pitching pH for brewing beer is normally between 4.8 and 5.2. Related articles Can I reuse yeast? How should I condition my beer when kegging? How long can I leave my beer in the fermenter after the SG reading is stable? Why is there a black sludge on the inside of my GF30? What is it and how do I clean it? Do I have to rehydrate my yeast?