Steeprock Functional Coffee est. 420 is a first-to-market innovative line of nano-infused coffee pods, compatible with K-cup type coffee machines. Steeprock Functional Coffee est. 420 is a first-to-market innovative line of nano-infused coffee pods, compatible with K-cup type coffee machines. The 100% Arabica coffee brews like a normal K-cup, and the THC emulsion powder dissolves completely to deliver a hot cup of infused coffee with enhanced onset and bio-availability.