A rotatable blade with a front side and a back side, for use in a slicing machine, includes a curved peripheral edge formed as a cutting edge defining a blade plane. On the back side of the blade, the cutting edge is adjoined by a first surface which is inclined obliquely to the blade plane, extends radially inwards and is at an acute cutting angle to the blade plane. A second surface of the blade follows the first surface radially inwards on the back side of the blade, and the blade has a same thickness over an entire radial extension of the second surface.