Sanitizing and K-meta Contact Time

[cmason1957]

Why add the citric acid? I don’t understand the purpose

To lower the PH of the solution and makes the K-Meta work at about the same PH as wine would be.

 

[winemaker81]

Why add the citric acid? I don’t understand the purpose

Acid lowers the pH and makes the SO2 more effective. My current K-meta solution recipe is 2 to 3 Tbsp K-meta and 1 Tbsp acid. Tartaric is supposed to be best, but any wine acid that lowers the pH works. I have a large bag of acid blend, so I'm using that up.

EDIT: Craig's post didn't appear before I posted, hence us saying the same thing.

 

[gmac52]

To lower the PH of the solution and makes the K-Meta work at about the same PH as wine would be.

Thanks

 

[gmac52]

Acid lowers the pH and makes the SO2 more effective. My current K-meta solution recipe is 2 to 3 Tbsp K-meta and 1 Tbsp acid. Tartaric is supposed to be best, but any wine acid that lowers the pH works. I have a large bag of acid blend, so I'm using that up.

EDIT: Craig's post didn't appear before I posted, hence us saying the same thing.

Thanks