Last week I was in Harrow, Ont., judging the 34th annual ACWC (All Canadian Wine Championships), by far Canada’s oldest national competition. Atlantic wines have historically done very well at this competition, mainly because there are lots of categories for the types of grapes we grow down here. The grapes used to be mainly French American hybrids like Marechal Foch and Seyval Blanc, but these days you are more likely to find Marquette, Fronten…