What is the disadvantage of fractional crystallization?

Low yield as a lot of the substance that is being purified is lost due to the several steps involved. Fractional crystallization is a cascade process as it involves the purification of the substance to the highest degree of purity. Also fractional crystallization is ineffective in separating enantiomorphs which have identical physical property.

clouds form

solid ice forms on leaves.

water droplets form on grass.