The limit for alcohol in checked luggage depends on the Alcohol by Volume (ABV). For beverages with less than 24% ABV (like most wines and beers), there is no quantity limit set by the FAA, though you must stay within your airline's weight allowance. For spirits with 24% to 70% ABV, you are limited to 5 liters (1.3 gallons) per passenger, and the alcohol must be in its original, unopened retail packaging. Any alcohol exceeding 70% ABV (over 140 proof), such as grain alcohol or some high-proof rums, is considered a hazardous material and is strictly prohibited in both checked and carry-on bags. When traveling internationally, also be mindful of your destination's customs duty-free limits to avoid unexpected taxes or confiscation upon arrival.