Yes, I use it in a 5 gallon keg. I've had up to 4 oz in it for a 5 gallon keg, but it would hold more. The keg hop is my 2nd dry hop, so I do 3-4 oz in fermenter, then another 3-4 oz in keg. I transfer from fermenter, to keg with dry hops for about 4-5 days, then to a new purged serving keg. I...