I have been lacto fermenting many types of hot sauces and salsas. I have read that the white film on the top was dead yeast cells from alcohol fermentation. Some of my sauces are no longer producing CO2. They have been fermenting for a little over a month. My question is if yeast gets in the sauce while lacto fermenting, will the alcohol content grow to the point where it kills the good lacto bacteria? No sugar was added to the peppers so the only sugar that could undergo alcohol fermentation would have to come from the peppers.