During the scene at the beginning where Jones is plowing, he takes a drink from a large brown bottle, starts stumbling, and slurs his speech.
At the party Jones is throwing, his guests all drink liquor and even Pilkington says "a friendly drink."
Mr. Jones drinks during breakfast.
Jones and his farm hands drink at night after coming home from the bar, drinking from large brown bottles while watching TV.
After the unsuccessful attempt by the men to take back the farm, the carriage driver puts a cigarette in his mouth and starts looking for a light.
After listening to the broadcast from the farm, Jones has a cigarette in his hand while Pilkington talks to him.
When Pilkington comes to talk to Napoleon for the first time, he is smoking a cigar.
Pilkington gives Napoleon a bottle of whiskey. Napoleon drinks it from a large bowl throughout the rest of the movie.
Pilkington and the other men celebrate the trade arrangement in a bar, drinking.
Pigs have hangovers after drinking too much whiskey.