TJ Semanchin is the co-owner of Wonderstate Coffee, a Wisconsin-based coffee roaster. Donald Trump's 10% blanket tariffs mean Semanchin's company will have to make some hard decisions. Wonderstate typically imports 40,000 pounds of coffee in one transaction. This as-told-to essay is based on a conversation with 51-year-old TJ Semanchin, the co-owner of Wonderstate Coffee. Business Insider has confirmed Semanchin's identity and role at the company. The piece has been edited for length and clarity. I've been in the coffee business for the last 25 years. Before that, I was living in Latin America studying issues around sustainable development in coffee...