Aeration-Oxidation Free SO2Testing

[wineflyer]

Has anyone used the Aeration-Oxidation method to test for free SO2? Specifically, the test set up that used an aquarium pump to blow air through the wine sample? Looking for thoughts/experience with the test/advice, etc.

I know the Accuvin tests are popular with those in the forum, but I am looking to expand my horizons a little in the testing realm. Any info/wisdom would be much appreciated. Thanks

 

[PeterZ]

Not familiar with this test procedure. What are the details?

 

[wine_wizard]

I think this is the general idea:
text description

and video examples:
[ame="http://www.youtube.com/watch?v=yG_HeY_sYLQ"]process 1 part a[/ame]
[ame="http://www.youtube.com/watch?v=X3GFGZS9hrU"]process 1 part b[/ame]

[ame="http://www.youtube.com/watch?v=xTdiHYrYhW8"]process 2 part a[/ame]
[ame="http://www.youtube.com/watch?v=Yalg2jouAVs"]process 2 part b[/ame]
[ame="http://www.youtube.com/watch?v=8Bdc5r-qBHQ"]process 2 part c[/ame]

Haven't tried these yet, but suspect they would be more accurate / repeatable then the accuvin test strips...

Also thought of using my exisitng vacuum source and draw the air thru, so no aquarium pump needed..

What do our chemists think ??

 

[PeterZ]

Your existing vacuum pump is probably far too powerful. The little aquarium pumps only run about 1 psi, where the vaccum pump draws about 14 psi of vacuum. A small aquarium pump is only about $10.

 

[Randoneur]

Winemaker mag has an article on this in the Oct/Nov 2010 issue that is just been published.