what are bitters
Bittercube bitters are handcrafted in Milwaukee. Bitters add a unique flavor to any drink. Bitters are like the spice rack of the cocktail world, according to Ira Koplowitz, co-founder of Bittercube. When cooking with spices, drastically different flavor profiles can be achieved with varying spice blends, he said. The same can be said for bitters.. More literally speaking, bitters are a liquid extraction of seeds, herbs, bark, roots, flowers, leaves and fruit of various plants. They are highly concentrated and are used by the dash to flavor cocktails.