White stuff on the top of Frascati wine

[dvizz]

I just bottled from a couple of 6 gal. carboys containing Frascati. I started the process about a year ago when buying 2 6gal. pails of Italian grape juice. Both carboys had air locks and I noticed this white residue substance laying just below the neck of both glass carboys. One was a little wider than the other one. I tried to suck out the white residue but had it basically mingle with the contents as I placed the siphon tube to start drawing the wine to bottles. The Frascati is a little "off" in taste and my wife is kind of hesitant to drink it.
I have read on this forum the issue is oxygen contaminating the wine but I have been making both whites and reds following the same procedures for about 6 years now and have not seen this happen before. I don't add Potassium Met bisulfate to the wine prior to bottling.
Has anyone else experienced this and what might happen to the Frascati.

 

[sour_grapes]

Another strategy is not to siphon off, but rather to float off the offending substance. Add a like wine to the carboy via a racking cane or similar, and let the bad stuff overflow out of the carboy.

 

[salcoco]

first impulse is to suggest "flower of wine" if so it may continue to grow in bottle especially since K-meta not used. since it is oxygen required might not affect the bottled wine. basically it converts alcohol to water. should see if it is working in about a month.

 

[mainshipfred]

Another strategy is not to siphon off, but rather to float off the offending substance. Add a like wine to the carboy via a racking cane or similar, and let the bad stuff overflow out of the carboy.

Now that's a good idea. If I have something floating I've been sucking it out with a turkey baster. I do the same if I get a whiff of H2S. Usually a 1/2 to 1" from the neck takes care of it.