Returning to sand means that there are sugar cubes inside that have not been boiled. When boiling the sugar, make sure there is sufficient water and simmer it over low heat to solve the problem. Be sure not to stir the syrup while it is boiling. If you stir the syrup, it will not form a crystal clear sugar hard shell. If sugar becomes sandy when boiled, you can only use the sugar that has become sandy as ordinary condiments.

Anti-sand indicates that there are sugar cubes inside that have not been boiled. When boiling the sugar, make sure there is sufficient water and simmer it slowly over low heat. Be sure not to stir the syrup while it is boiling. If you stir the syrup, it will not form a crystal clear sugar hard shell. If sugar becomes sandy when boiled, you can only use the sugar that has become sandy as ordinary condiments.