I mix campden in my winein the primary, and at every other racking after that. It's easy to know that the campden has been thoroughly mixed in "primary" wine, because I use a drill-mounted stir device. And this is true at some rackings, because I use the same stir device to degass.
But at some rackings I do not degass.In this case, how do you ensure that the campden is thoroughly mixed in the wine?
But at some rackings I do not degass.In this case, how do you ensure that the campden is thoroughly mixed in the wine?