The note presents a powerfully roasted and nutty aroma, often described as popcorn-like, peanut-like, or even reminiscent of toasted bread crust. It carries a distinct savory edge, sometimes bordering on burnt or smoky. Its intensity is considerable, even at low concentrations, and it can project strongly. It evolves rapidly, initially presenting with a harsh, almost acrid facet before mellowing into a warmer, more palatable roasted character. It is typically used as a middle-base note due to its tenacity.