I haven't noticed any negative affect pouring. Though I usually siphon. If you barrel age you are exposing the wine to a lot more oxygen then you are going to get from pouring once. I would say white is a little more susceptible then red to oxygen but as long as you sulfite levels are good. You...
Another issue you may have is if you put it through ml and all of the malo acid is gone, then the ml bacteria will start eating the sugar and create VA in its place. Also adding nutrients at this point can be dangerous for if the yeast doesn't eat it then spoilage bacteria may.
What temperature are you keeping the wine at during the ml? Idealy it would be around 70. If the temp is too low that will stop ml, bit it will restart once it warms up. Also as the pH rises the effectiveness of so2 goes down, so a pH of 3.5 you might need 30 ppm to keep it protected at a pH of...
I don't think I would rack it just yet. Judging from the picture you have headspace happening. So what you got growing is in response to that. Racking it could mix it throughout the entire wine and add more oxygen causing it to continue. I would remove what I could of the fuzz and Hit it with...
Are you getting any nail polish remover type smell? If so there could be an aceta problem as well. So2 will help that as well, 50 ppm initial dose, in a week if you can/want to run labs to see where the free so2 level is, it should have dropped quite a bit as it binds with the aceta and drops...
To me the pH looks a bit low. And the ta a bit high, but taste will tell you more. You have some malic acid in there which seems to say no secondary (MLF) fermentation has taken place. The acetic is a potential problem but keeping things clean and more importantly, air off of the wine. Acetic...