mercaptans

I have a 6 gallon batch of Merlot made from grapes, last year. The fermentation was difficult and, for some reason, I ended up with H2S in this wine. I splashed racked it, I treated it with Reduless and I thought that the problem was resolved. The wine completed MLF in the spring, I racked it a...

Hello, my first time posting here so forgive me if I miss something. Currently working with a batch of California cab sauvignon, ran into an H2S problem. Splash racked it 2 times and after fumigating the house with sulfur and letting it stand for a week did have noticeable improvement but still...