Sanitizing PH55 meter after testing wine that went through MLF

[geek]

If you use the PH meter and test a wine that either is in the MLF process or finished sometime ago......would you just rinse in k-meta solution thoroughly and then with spring water before putting it to store?

Ok to let the PH probe be in contact with k-meta briefly?

I don't want to carry over any mlb into other non-MLF'd wine.

 

[acorn]

Your rinsing K-meta solution is many times stronger than what you add to wine to increase free SO2. That will ensure any MLB left on the probe is inhibited beyond return, but then you also rinse it with water. The chances of a MLB surviving such dose of K-meta, rinsing, exposure to oxygen (and to a different environment, should it even hypothetically get into your other wine), and going from the surface of a tiny probe after all the rinsing are very minimal.

 

[Boatboy24]

Why do you need to sanitize the pH meter? The meter has metallic parts on it, if I'm not mistaken. I wouldn't want to be putting KMeta anywhere near it.

 

[ibglowin]

I wish it was that simple to get MLF going. I have never had a problem. I don't sanitize my meter, just rinse well each time. I also check my white kit wines with the same pH meter I use on my reds from fresh grapes.

 

[cintipam]

I'm with Mike. I don't sanitize my meter either. But then I pitch the wine sample instead of returning it to the carboy. It takes so little to get a reading its no big loss, and also no threat of cross contamination.

Pam in cinti

 

[geek]

Why do you need to sanitize the pH meter? The meter has metallic parts on it, if I'm not mistaken. I wouldn't want to be putting KMeta anywhere near it.

because you never know what crevices inside the bottom housing can hold a bit of wine even after rinsing.....
I'm making sure I'm not over thinking it

 

[Boatboy24]

because you never know what crevices inside the bottom housing can hold a bit of wine even after rinsing.....
I'm making sure I'm not over thinking it

Are you putting your sample back into the carboy? I rinse, but not with Meta, and I never put my test sample back into the carboy.

 

[geek]

Are you putting your sample back into the carboy? I rinse, but not with Meta, and I never put my test sample back into the carboy.

Nope, usually goes to sink or my stomach...

 

[seth8530]

Are you putting your sample back into the carboy? I rinse, but not with Meta, and I never put my test sample back into the carboy.

I was going to point this out, I would never put a PH test sample back into a carboy.

Nope, usually goes to sink or my stomach...

I'm with boatboy, you should not be tasting PH samples. In general, a good rule for working with chemical reagents that are not designed for consumption would be to not drink something that you put into contact with them.

So really, the concern of cross contamination should not even be a concern. As far as cleaning an instrument goes I believe that good clean water should do the trick.