except for tobacco and alcohol, goods you claim in your seven-day exemption (CAN$800) may be shipped to your home by mail, courier or other means of transportation.

Alcoholic beverages

You are allowed to import only one of the following amounts of alcohol free of duty and taxes:

1.5 litres (53 imperial ounces) of wine;
a total of 1.14 litres (40 ounces) of alcoholic beverages; or
up to a maximum of 8.5 litres of beer or ale.
Alcoholic beverages are products that exceed 0.5% alcohol by volume. Minimum ages for the importation of alcoholic beverages, as prescribed by provincial or territorial authorities, are 18 years for the provinces of Alberta, Manitoba and Quebec and 19 years for the remaining provinces and territories.

Note
The CBSA classifies "cooler" products according to the alcoholic beverage they contain. For example, beer coolers are considered to be beer and wine coolers are considered to be wine. Alcohol and wine products not exceeding 0.5% alcohol by volume are not considered to be alcoholic beverages.

The quantities of alcohol you can bring in must be within the limit set by the province or territory where you will enter Canada. If the value of the goods is more than your personal exemption, you will have to pay both duty and taxes, as well as provincial/territorial assessments. In Nunavut and the Northwest Territories, you cannot bring in more than the quantities of alcohol allowed. For more information, contact the appropriate provincial or territorial liquor control authority before you arrive back in Canada.

http://www.cbsa-asfc.gc.ca/publicati...f5056-eng.html