Rather than start a new thread about pH meters, I thought I would resurrect this one since I found an earlier thread that referred to it.
I have some meter questions for the experienced and experts out there.
I recently picked up a Milwaukee ph56 from Cynmar and will be using it to test the pH of our darker beers. Some of the questions I have are specific to this model, but the answers might be useful for other meters as well.
We brew anywhere from 1-4 batches a month of various styles. Although the intent was to test the darker beers, I'll probably use them for all beers just because I can. Do I need to calibrate the meter before each batch, or is it more of a once every x months sort of thing?
I understand that I need to store it in a 4.01 solution or bottled water to keep the probes wet. The ph56 comes with cap over the probes. Is this something that I should fill with the solution, or should I get a small beaker and leave the probe in there? I am worried about evaporation and some klutz (me) knocking the solution over. Does anyone have any suggestions on storage? It came with a nice case, but if I have to store it wet, the case becomes kind of useless. Also, when I transport it to the brewery, do I need to do it in the solution, or can I remove it from the solution for the 10-minute drive and subsequent 5-6 hour brew day?
Based on my brewing frequency noted above, should I buy bottles of calibration solution or packets? Packets seem more convenient since I can grab a 4.01 and a 7.01 and be set for the day, but bottles are probably cheaper in the long run. I am worried about spoilage since the solutions are dated. Does the solution degrade with exposure or time?
Thanks in advance!