A beverage whipper, including a whipper disk configured for spinning
within the whipper and having a radius is disclosed. The whipper disk
further includes a front surface and a plurality of forward-facing
concave surfaces that divide the front surface into a plurality of front
surface sections. The concave surfaces extend generally radially over
more than half the radius and have a circumferential width and a depth,
wherein the width is larger than the depth. The front surface sections
have a total area that is at least 4-times the total area of the concave
surfaces. Also, a beverage dispenser that includes the whipper for
forming beverages having crema such as espresso or cappuccino.