Can a crystal bowl be used to freeze food without breaking?

It is generally not recommended to freeze food in a crystal bowl without testing the bowl's resistance to extreme temperatures first. Crystal bowls are typically made from glass, and not all types of glass are suitable for freezing temperatures. Some types of glass, such as tempered glass, are more resistant to thermal shock and may be able to withstand the temperature changes associated with freezing and thawing. However, other types of glass, such as annealed glass, may not be able to withstand these temperature changes and may break or crack when exposed to freezing temperatures.

To determine if a crystal bowl is safe for freezing, you can perform a simple test. First, fill the bowl with water and place it in the freezer. Leave the bowl in the freezer for several hours, or overnight, to allow it to cool completely. After removing the bowl from the freezer, inspect it carefully for any signs of damage, such as cracks or chips. If the bowl shows no signs of damage, it may be safe to use for freezing food. However, it's always best to err on the side of caution and check the manufacturer's instructions or recommendations for the specific crystal bowl you have.