Is it ok to reuse the solution for calibrating a ph meter?
Calibration fluid
- Thread starter Jag75
- Start date
Help Support Homebrew Talk:
RPh_Guy
Bringing Sour Back
For best results you'll want to use fresh solution each time.
https://www.homebrewtalk.com/forum/threads/ph-meter-calibration.302256/
https://www.homebrewtalk.com/forum/threads/ph-meter-calibration.302256/
OP
OP
Ah ok that's what I've been doing but thought maybe I'd be able to save a little bit since I re calibrate every time I brew . Thank you for the link .
I pour mine into clear 35mm film canisters (Fuji). They seal with a tight lid on them.
There's no shift compared to the stock solution, even after 8 weeks of not being reused.
Depending on how well you rinse the probe (2-3x) and blot it before dipping into the calibration solutions, you should be able to get 5-10 readings without shift. My Apera manual says to replace after 10 readings.
I do calibrate each session, but only 7.0 and 4.0, as that's the range I'm using.
There's no shift compared to the stock solution, even after 8 weeks of not being reused.
Depending on how well you rinse the probe (2-3x) and blot it before dipping into the calibration solutions, you should be able to get 5-10 readings without shift. My Apera manual says to replace after 10 readings.
I do calibrate each session, but only 7.0 and 4.0, as that's the range I'm using.
