Christmas Crackers: How long do they last?

I started spring cleaning this afternoon and found an unopened box of Christmas crackers. There’s no expiry on the box. Will they still be snappy next Christmas?

Yes. I’ve used ones from the year before without issue. In fact, this past Christmas the new ones I bought were less snappy than the leftovers from the year before.

Thanks. They’re going back into the box for next Christmas’ festivities. And thanks for responding so quickly.