Definitions for "PRIMARY FERMENTER"
IS WHERE MOST OF THE FERMENTATION ACTIVITY OCCURS AND MUCH OF THE YEAST SETTLES OUT. IT IS OFTEN RECOMMENDED TO PUT IT INTO THE SECONDARY AFTER ABOUT 4 DAYS.
Any vessel in which primary fermentation occurs.
Sometimes called "the primary" a vessel, more often than not a fermentation bucket or carboy, where in primary fermentation takes place.