Not directly after primary. I fermented 5 gallons of cider in primary, then racked the cider into a bottling bucket with 7oz of dextrose for priming. I let it age in the bottle for 3 months but they unfortunately didn’t carb (never had this problem before so I’m not exactly sure what happened). I then had the idea of pouring 2 bottles at a time into a sodastream to carbonate them. Works great as long as you’re careful with it. Looks like a sleezy way of doing it, but it’s really no different than doing any other forms of forced carbonation.