If you purchase Juice buckets to make wine, you end up with a new primary. The bucket the juice comes in is typically a 6 1/2 gallon food grade bucket with a breather valve. remove the rubber valve, drill out the opening to fit a rubber grommet for an airlock.
I now have 9 primaries by doing just that, but never have more than 4 going at one time.
As mentioned earlier by others, you can use the primary for both, but I prefer to mark my primaries for beer or wine only.
Oh! by the way....... These juice buckets also make great brine tanks for fresh hams and other special meat creations.
Salute!
