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-   -   Risk of oxidation while taking hydrometer readings?? (http://www.homebrewtalk.com/f39/risk-oxidation-while-taking-hydrometer-readings-53972/)

The Soft Underbelly 02-05-2008 09:50 PM

Risk of oxidation while taking hydrometer readings??
 
Ive searched the forum some and while i'm sure this topic has been covered, i cant easily find a thread that relates. So my apologies at the outset if this is redundant.

I'll be taking a hydrometer reading on my first batch in a couple of days. It is a 5 gallon batch which is in a 6 gallon glass carboy. My concern is, with this much head space, do i risk oxidation when i remove the bung & airlock. I understand that i need at least two consecutive identical readings to ensure fermentation has stopped. Since this might require several samples, what are my risks and, are there any procedures i can follow to reduce any risk.

Any advice is greatly appreciated.

Brewtopia 02-05-2008 09:54 PM

There is a blanket of C02 over your beer and since C02 is heavier than air, there's no risk of oxidation.

The Soft Underbelly 02-05-2008 09:58 PM

Dang! Talk about fast service!

Thanks for the explanation!


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