i have been using buckets to ferment in and they are getting old .what size of glass carboy's do you need to use to primary and secondary in . i have 2 5 gallon ones from wine making. are they big egough to use or do i need 6 gallon size?
I use the 6 gal size Better Bottle. Much lighter than glass and won't shatter if you drop it (been there, done that). Works great for a 5 gal batch of beer.