Side note: it is true that pepper would keep better in a vacuum container when not being used. Most commercial vehicles do not provide this for containers or grinders, but that could also be aided with a parallel design – defeating the criticism that only a big of pepper in the grinder reflects the expectation that it is sub-optimal for storage compared to the sub-optimal stock storage it came from.

Only today, I auto-discovered what is probably a lost folk secret: if the pouring of the peppercorns into the funnel is animated with extra kinetic & angular momentum, their rate of becoming stuck in a jam at the bottom is significantly less.