Photos in bags have condensation, prevent?

I have some 8X10's & 12X18's for sale at a festival. The prints have a backboard and are individually bagged. The temperature started out in the low 60's & up to 78 now. The top of the pictures have condensation in each bag.

Anyone have experience with eliminating this problem? We even bagged some of the 8X10's this morning after arriving to the festival as we just received them. Is this something that will happen each time we set up at a festival?

Thanks for any info that may help.

JJD.Photography wrote in post #16863021
I have some 8X10's & 12X18's for sale at a festival. The prints have a backboard and are individually bagged. The temperature started out in the low 60's & up to 78 now. The top of the pictures have condensation in each bag.

Anyone have experience with eliminating this problem? We even bagged some of the 8X10's this morning after arriving to the festival as we just received them. Is this something that will happen each time we set up at a festival?

Thanks for any info that may help.

Consider office-supply type clear sheet protector that have openings.

If you are bagging up newly received prints remember they may not be completely dry from the printing process. Also, as already mentioned, I'd prefer to see some ventilation in the sealed bag to take care of temperature variations.