How long does it take play dough harden in a freezer?

Play dough typically hardens in a freezer within 1 to 2 hours. The cold temperature causes the moisture in the dough to freeze, which can lead to a firmer texture. However, it's important to note that freezing may alter the play dough's consistency, making it more brittle once thawed. For best results, it's advisable to let it air dry at room temperature instead.