White asparagus has a stronger more earthy taste. Size does not influence the quality of the asparagus, but is a matter of preference. The size of the stalk has no relationship to tenderness. Whether thick or thin, select asparagus with firm, straight stalks. Stalks should be fresh-looking, with closed, compact tips.
Open tips are a sign of over-maturity.
Choose asparagus stalks which show the most green color. At home, keep asparagus cold and humid. Store in the refrigerator and wrap the bases in a damp towel. Use it quickly to enjoy the best fresh flavor and texture. To prepare fresh asparagus, simply break or cut off the white stem ends.