There is a bit of confusion out there as to what the difference is between primary and secondary fermentation. Sometimes secondary fermentation is confused with a second fermentation and other times malolactic fermentation. Let’s set the record straight.
Primary Fermentation
Before we talk about secondary fermentation lets start at the beginning with primary fermentation. This stage starts as soon as you add your yeast to the must. During this stage the yeast population is growing rapidly.
You know you’re in the primary stage because there’s a lot of visible activity. There’s often a lot of foam on top of the must and your airlock will be bubbling like crazy. Continue reading “The Difference Between Primary and Secondary Fermentation”