What kind of pepper do you have in your grinder?
The grinder I was given only has about an inch left and, to the best of my recollection, I've never actually bought
just peppercorns. I am going to order from Penzey's today. Their selection of peppercorns is overwhelming - tellicherry, malabar, muntok, pink, green, black. I have a shaker of ground white, so I want at least some (or all?) black.
https://www.penzeys.com/search/?q=%22peppercorns%22