Look for firm, creamy-white florets that are tight and without brown speckles. Check also the condition of the base of the stem. If it is dry and discolored, the cauliflower is certainly past its best. The outer leaves of a cauliflower are usually cut away before they are sold. This helps you to see the head but removes what would be a clue to a limp, older cauliflower that is definitely best avoided.
** Asian Online Recipes