Crystallization is a better method of purification or separation than evaporation.

Crystallisation is a process that involves the preparation of a saturated solution by heating, followed by slow cooling. The result is the formation of pure solid crystals, with impurities remaining dissolved in the solvent. Unlike evaporation, which simply involves heating to remove the solvent. This makes crystallisation a more efficient method for purifying substances as it results in a higher-quality, purer product.