VITRIFICATION
Vitrification is a technology that is used in the embryo and egg freezing process so that they can be stored for later use. It is a technology that has many uses outside of fertility care with egg and embryo freezing, as it allows something with a crystalline structure to be converted into something very smooth. The classic example is the creation of glass using sand (which is crystalline) as the main ingredient. Other examples include the manufacture of china plates and cups (also using sand), cotton candy from sugar (also crystalline) or ice cream which is smooth to the taste and contains no ice crystals despite its frozen state.