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http://www.united.com/page/article/0,6722,52062,00.html
Alcoholic beverages
Alcoholic beverages placed in checked baggage must adhere to the following size restrictions and package guidelines.
For all alcoholic beverages:
When placed in checked baggage, glass bottles must be in a Styrofoam-type insert that is molded to the shape of the bottle and completely encloses the bottle
Customs regulations outside the U.S. may have additional alcohol transport restrictions
Proofs of alcohol vary. The guidelines for the varied proofs of alcohol are as followed:
Alcoholic beverages- less than 24 percent by volume (48 proof)
Includes most beer and wine
No limit on amount that can be accepted
Alcoholic beverages- 24 to 70 percent by volume (48 - 140 proof)
Covers most alcoholic beverages
Limited to 5 liters (1.3 gallons) per passenger
Alcoholic beverages more than 70 percent by volume (140 proof) are not permitted onboard the aircraft.
http://www.united.com/page/article/0,6722,52062,00.html
Alcoholic beverages
Alcoholic beverages placed in checked baggage must adhere to the following size restrictions and package guidelines.
For all alcoholic beverages:
When placed in checked baggage, glass bottles must be in a Styrofoam-type insert that is molded to the shape of the bottle and completely encloses the bottle
Customs regulations outside the U.S. may have additional alcohol transport restrictions
Proofs of alcohol vary. The guidelines for the varied proofs of alcohol are as followed:
Alcoholic beverages- less than 24 percent by volume (48 proof)
Includes most beer and wine
No limit on amount that can be accepted
Alcoholic beverages- 24 to 70 percent by volume (48 - 140 proof)
Covers most alcoholic beverages
Limited to 5 liters (1.3 gallons) per passenger
Alcoholic beverages more than 70 percent by volume (140 proof) are not permitted onboard the aircraft.