Hello rabaja, I would be interested in trying your pretzel recipe, if you still have it. thanks!

This is too late to help with your picnic request, but it seems there was too much moisture in the container; i.e. that it was airtight. Store the pretzels in a paper bag, rolled shut. They will lose some moisture but not too much. Pretzels are hard to keep fresh when they are day-old. To refresh them, I often spritz them very lightly with water and reheat them then at 350 degrees for about 4 minutes. Helps to bring back some of the crispness.