One of the youngest bean-to-bar factories in the U.S., Theo offers 45-minute tours that draw raves for their generous samples and thoroughness. Enthusiastic guides walk you through everything from the bean-roasting and table-tempering process to the final ganache-making steps in a 100-year-old building that once housed streetcars, now filled with vintage roasting and grinding machinery. Best of all, the store sells unique factory-only flavors like salted licorice caramel, key lime pie and peach Riesling.

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