Mokhtar Alkhanshali is trying to produce the perfect cup of coffee. And he’s trying to do it with beans grown in the midst of an active war zone in Yemen. Despite those challenges, his company’s first batch earned rave reviews, and sold for $16 a cup at one of the fanciest coffee chains around. But can he turn that early success into a profitable business, or will the challenges of trying to achieve perfection using a supply chain that starts halfway around the world do his young company in?