What problems did Charles Cretors face while inventing the popcorn popper?

Charles Cretors faced several challenges while inventing the popcorn popper, primarily related to the need for a reliable heating mechanism that could produce consistent results. He encountered difficulties in designing a machine that could pop corn efficiently without burning it, while also ensuring that it was safe and easy to operate. Additionally, he had to overcome skepticism from potential investors and vendors who doubted the viability of his invention in a market dominated by traditional popcorn-making methods. Despite these obstacles, Cretors' perseverance ultimately led to the successful commercialization of his steam-powered popcorn machine.