The invention discloses compositions and method for food plant substance after reducing weight loss and/or natural gloss being kept to harvest. Particularly, the method for the present invention includes the compositions to the plants on surface substance, including edible wax, and there is fusion temperature to be lower than 70oC A kind of hydrocolloid Fatty acid Emulsifier And water, wherein total weight of the edible wax in the composition that weight percentage ranges are about 10% to about 25%.
