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mold in primary fermentation stage

I have been making wine from grapes at home for several years and never encountered this problem. During the primary fermentation stage I noticed some mold on the top of the cap of some in a few of the primary fermenters. I am working with alicante and grenache grapes for the first time and have heard that this is not uncommon with these grapes. As I said before, I never encountered this before. the weather here has been exceptionally hot, in the 70s during the day and 50s at night.

I removed the cap with the mold and set these primary fermenters aside. Any ideas about what I should do? I appreciate your help. Orlando

Reply to
orlando.villella
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Press ASAP and then watch it with an eagle eye. Might want to avoid ML. Keep sulfite levels up.

Pp

Reply to
pp

Quick update, I added some more yeast to accelerate fermentation. The mold has dissapeared and I will take a reading for SG with the anticipation of pressing this weekend. So far so good. Orlando

Reply to
orlando.villella

You did exactly what I would have done, get the fermentation going strong. The yeast will eat up any fungus especially if your using a "killer" strain. You should be fine now.

Bob

Reply to
doublesb

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