Canadian winemakers, blessed with excellent summer growing conditions, and beset by a long, harsh winter, have turned a problem into an opportunity. Icewine is the country's flagship wine. What is an occasional venture into vinous exotica in other wine growing countries has become a norm in Canada where 68 of the country's 160 wineries produce a specialty most frequently associated with Germany and Austria. But while their European colleagues are happy when they get the right conditions for icew...