Almost every item in the kitchen will use the Principled BSDF material, and to make successful materials, we need to understand the science and practice of physically-based materials. BSDF (short for Bi-directional Scatter Distribution Falloff). When an emission of light hits a surface, there's a limited number of plausible physical effects.
First, the light ray is an emission. That ray can reflect off the surface, bouncing back light's energy. The ray can scatter through the surface, partially getting absorbed, and partially bouncing that light back out as diffuse reflections, also called albedo. The part of this scattered ray that sends out the remaining light is characterized by the energy that wasn't absorbed, ...
