The Turbo Mill BTM for high-speed milling of dry or moist ingredients incorporates an oscillating rotary valve to feed product into the milling chamber where a rotating stainless steel blade assembly reduces the product particles through impact or cutting. Depending upon application, the blade assembly can be reversed. For dry products, reduction is accomplished using the flat side of the blades. For moist products, the knife-edge of the blades is used. Milled material is discharged through a fine mesh screen that regulates the finished product size. The screen can be quickly changed by removing the front cover plate. This eliminates the need to disturb the inlet and outlet connections.