All Frontier Bottled Spices are freshness dated, non-irradiated, safety sealed and feature a convenient shaker top for easy use. Throughout medieval Europe, pepper was commonly traded, ounce for ounce, for gold. This irreplaceable spice has long been recognized as an ingredient for stimulating the appetite. Peppercorns can be, depending on their processing, either black, white, green and red. That is, the same plant produces all four types, depending on the time of harvest and the method of processing. Green pepper is harvested unripe, and then either pickled in salt or vinegar, or quick-dried. This produces a less pungent, more herbal flavor.