When is it safe to consume alcohol after wisdom teeth extraction? a week or two?

As long as there is no pain in the socket or evidence of dry socket problems, and you are not taking any pain medications, low to moderate alcohol consumption typically does not cause problems after one or two weeks.

Usually you are on Antibiotic after Wisdom tooth extraction and alcohol drinking will reduce the effectiveness of the Antibiotic and interfere in healing . Best to wait for few weeks for proper healing even if you are not on Antibiotic .