The perception that beets taste like dirt is subjective and can vary among individuals. However, there are a few reasons why some people may describe the flavor of beets as earthy or reminiscent of soil. One key reason is geosmin.  Beets contain a compound called geosmin, which is also found in soil and gives it that distinct earthy smell. Geosmin is responsible for the earthy flavor in some root vegetables, including beets. Some individuals may be more sensitive to this compound and perceive it as a "dirt-like" taste.