Although both make a living by expertly mixing an array of compounds, bartenders differentiate themselves from chemists in uniform, workplace, and tolerance for workplace line dancing. Shimmy, shake, and stir this sippable science with today’s Groupon: for $75, you get an introductory bartending package at the International School of Professional Bartending (a $150 total value). The package includes:

• A four-hour intro-to-bartending class (a $100 value)
• A bartender’s toolkit (a $50 value)
  
  

Regular classes start at 9 a.m., 1 p.m., and 6 p.m. Tuesday–Friday, and a special introductory course is offered on select Saturdays from 2 p.m. to 6 p.m. for those who aren’t planning to continue their training.

The International School of Professional Bartending’s veteran drink slingers breed well-versed mixologists and share lore from decades of experience in a true-to-life bar classroom. The path to potent professionalism begins with a four-hour introductory lesson, which covers the tending basics, which include using bar tools, measuring by eye, and free pouring. The sessions focus on hands-on learning in the school’s fully equipped practice bar, complete with draft beers, stainless-steel sinks, and soda guns. Jovial pupils sip on their inventive creations and craft fiery drinks that draw cheers and scare off greedy satyrs. After mastering basic bartending techniques and crowd-pleasing stunts, burgeoning barkeeps leave the classroom with a canvas tote bag brimming with bar necessities such as a stainless-steel mixing tin, a pint shaker glass, a two-sided jigger for mixing, and a wisecracking piano player to banter with.