During a visit to the Dixie Elixirs & Edibles plant in Denver last summer, I saw the machines the company uses to produce cannabis concentrates, the kitchen where it makes marijuana-infused chocolates, and the bottling line for its THC-spiked sodas. Toward the end of the tour, I had a semi-serious question for the company’s CEO, Tripp Keber: “Where do you keep your piles of money?”

Keber laughed but quickly turned serious. “We actually have strong banking relationships,” he said. “We don’t talk about them. Asking someone about their banking is like asking them what they wear to bed at night. It’s an intensely personal question, even within the industry.” You can begin to understand why banking is such a touchy subject for the newly legal cannabusinesses in Colorado and Washington as well as growers and dispensaries in the 21 states that allow medical but not recreational use of marijuana if you consider the federal laws a financial institution violates when it does business with a state-licensed company like Keber’s.

Read more: Cannabis Cash Conundrum, Continued | Reason