Forgive me for not reading through 7 pages of threads, but I'm getting ready to keg my first hard seltzer.
I followed recommendations from Mitch E. at Speciation Ales in MI. They've started brewing and selling these, I imagine they're good for what they are.
At any rate, I made a 2.5 gal batch to start with. 2 lbs table sugar into hot water and a bag of frozen mixed berries. I'm told the fruit negates the need for yeast nutrients. So I suppose it's a very watered down wine? At any rate, got to 1.036 and pitched Bootleg Biology Oslo Kveik.
After a week or so, it was only down to 1.020, so I ended up adding Fermaid O and put on heat to maintain 90 deg F. A few days later, its down to 1.000 and my wife liked the taste of the sample.
A couple questions: when kegging, is there merit in adding Campden tablets to ward off oxygenation? At what pressure should I serve? I keep my beer system at about 14 psi - I assume that's too low?