sulfite and MLF

[timmor]

I have just ordered 30 gallons of raw juice and plan start fermentation with Pasteur Red yeast + nutrient. I also hope to start MLF at the end of the primary fermentation.

Questions:

1. How much potassium metabisulfite do I add to kill wild yeast BUT not inhibit the MLF?
2. Should I add an MLF nutrient just incase there is too much SO2 or won't that help?

[grapeadmin]

Pretty much any so2 added at the beginning of fermentation will blow off with the initial fermentation. You could likely add up to 800-100 ppm and it would not prevent the ml ferment.

Adding the ml nutrient is never a bad idea.

thanks
john