After a long interrogation, the officer told me it seemed “shady” and that my visa hadn’t been properly processed. He claimed I also couldn’t work for a company in the US that made use of hemp – one of the beverage ingredients.
i don't know what hemp is or how is related to THC.
Hemp is a type of cannabis. Historically in the US, it contained extremely small amounts of THC. With the legalization/decriminalization of THC across many states, I don't know if that's still true.