How to choose the best:

Frisée

The leaves should look vigorous, with a bright green color at the tips that fades to pale shade nearer the roots.

Avoid any leaves that seem to be going yellow or brown.

Endive should feel firm and robust, not at all as if its wilting, so avoid any soft or slimy feeling leaves.

Look for a tight, firm head of chicory that feels heavy for its size.

Endive does best in a humid environment, so try wrapping in a moist cloth or paper towel before storing in a plastic bag.