Picked my Frontenac grapes yesterday. Measured the Brix first at 24.5 so picked 95 pounds of grapes. Ran them through my crusher/destemmer. To fully juice them you really need to run them through twice. Looks like almost 9 gallons. Good flavor. We had a minor frost in the morning and only a few grape leaves were wilted so think I will be OK. They seemed to juice very well.