A vacuum blender having the ability to reduce oxidation of ingredients for a more nutrient-rich product. The blender includes a container for holding ingredients to be blended, the container being open at a top end and having blender blades at a lower end, a lid for covering the open end of the container, and a base having a motor contained therein for driving the blender blades, an interface for coupling with the blender blades of the container, a vacuum system for effecting a vacuum to the container and electronic controls for operating the motor and vacuum system. The vacuum system is configured to couple with the lid to draw a vacuum from the top of the container when activated.