how do they turn black??
Black Peppercorns are made from the pepper plant. The reason it turns black is because during the process, the pepper's wall ruptures and causes the seed to shrink and darken.
Hope this haleped answer your question. :)
Yep. Peppercorns are what all pepper is made from. What we are used to seeing on the table is just peppercorns that have been finely ground up.