agentbud
Well-Known Member
I use RO water for my brewing. In my brewing software, I have my water profile for RO set at a starting Ph of 7 and adjust it accordingly for the mash. However, I just read an article that stated that RO water left out will have its Ph drop to around 5.5 within an hour of being exposed to air? I normally run my RO system hours before brewing so that I have enough water, so it is definitely sitting out exposed to air for a while.
Is it true that this will indeed cause the Ph of that water to drop to around 5.5?
Is it true that this will indeed cause the Ph of that water to drop to around 5.5?