This Stainless-Steel grinder can be used to grind salt or pepper. Just unscrew the bottom and fill with your favorite salt or pepper. This grinder is hand turned from Mulberry. This Mulberry is from Eastern North America but can be found worldwide. Mulberry can have colors from golden brown to medium/reddish brown. The darkening is with age. The Mulberry tree grows to a height of 50 feet with a diameter of 1 ½ feet. Polished and sealed with a food grade finish.