Why is it illegal to freeze cider?

However, freezing cider can affect its quality:

* Separation: Cider can separate when frozen, with the water freezing and the alcohol, sugar, and other components concentrating in the unfrozen portion. This can result in a watery cider after thawing.

* Flavor changes: Freezing can alter the flavor of cider, making it less palatable. This is due to the changes in the chemical composition of the cider.

* Container damage: If the cider is in a glass container, it can break when frozen due to expansion.

So, while not illegal, it's not generally recommended to freeze cider.

If you're looking to preserve cider for longer periods, pasteurization or canning are better options.