Crossing the US - Canada Border - Wine Limits?
"Alcoholic beverages are products that exceed 0.5% alcohol by volume. If you meet the minimum age requirements of the province or territory where you enter Canada, you can include limited quantities of alcoholic beverages in your personal entitlement. Minimum ages for the importation of alcoholic beverages, as prescribed by provincial or territorial authorities, are as follows: 18 years for Alberta, Manitoba and Quebec; and 19 years for the remaining provinces and territories.
"You are allowed to import only one of the following amounts of alcoholic beverages free of duty and taxes:
* 1.5 litres (53 imperial ounces) of wine; or
* a total of 1.14 litres (40 ounces) of alcoholic beverages; or
* up to 8.5 litres of beer or ale."
Just want to add that those limits are per person, not per automobile, so you can bring 3 litres of wine between you.
Also, while in Quebec, you can buy wine at either the government "Societe Des Alcools du Quebec" (SAQ) stores (which all my English friends refer to as the "Alcoholic Society") or at local grocery stores. You can get decent wines at the SAQ; most of the stuff at the depanneurs is plonk. Prices for the most part are higher than in the US.
Be sure to have a poutine!