Unless the addition of sodium metabisulfite chemical agent to promote yellow cauliflower does not change color, but also easy to store. We certainly do not want to buy chemical agent treated yellow cauliflower, so to eat fresh natural yellow cauliflower can only be purchased at the time to pay more attention to the new vegetables listed in the season to buy is of course delicious fresh dried yellow cauliflower (yellow cauliflower each year, new vegetables listed in the end of June - the end of August this period of time).

Yellow cauliflower two kinds of blackening:

1 blackened with white spots yellow cauliflower was black, white spots, this is moldy yellow cauliflower, do not eat, a good yellow cauliflower is a uniform color dark yellow.

2 dry place, no moisture, this blackening is a normal oxidation reaction, eat with water to soak it will return to the dark yellow. This can be eaten (yellow cauliflower dry place can generally be stored for about a year and a half of time).