TWL+Mechanism+of+crystallization

__ Ostwald Ripening __

__ Accretion __
 * C﻿onditions may exist where small crystal is in unsaturated condition at the same time that large crystal are in supersaturated conditions --> small crystal and large crystal grow.
 * __ ﻿ __ Crystals that are very close to each other tend to grow together to form 1 large crystal; particularly those with high numbers of very small crystals in close proximity.
 * Example: ripening of ice crystals in ice cream

__ Polymorphism transformation __ __ Melt or refreeze __
 * __ ﻿ __ Lipid undergoes polymorphic change as less stable crystal forms changes to a more stable form.
 * The subsequent release at additional latent heat cause substantial probelm in the product.
 * Phase volume change in crystalline material occurs as temperatures fluctuates during storage, accompanied by change in crystalline structure.
 * Smallest crystals are most sensitive to high temperature and may dissolve or melt or even disappear.