Are krumkaker still good after being frozen?

The Christmas baking experiment results are in: frozen krumkaker get a little moist upon thawing and the texture is undesirable, but keeping them tightly wrapped or sealed in an airtight container will allow for continued crispiness into early February. I had a chance to taste these leftovers from three days before Christmas at the beginning of this month, and they tasted like they were, at most, two or three days old. Still well-flavored by the cardamom and vanilla, still light and somewhat crunchy. The samples I brought home were gone in about five minutes.