I brewed a Milk Stout and I'm going to add the lactose at bottling time. Do I still need to add priming sugar to my Milk Stout or is the lactose vertually unfermentable? I don't want exploding bottles. Thanks.
Probably not. I usually add with 10 minutes left in the boil to dissolve/sanitize.
10 minutes out from flameout is also when I kick the March pump on to recirculate through the CFC and tubing to sanitize and drop in a Whirfloc tablet, so it's a convenient time for any adjuncts that I may be adding.