No idea but cleaning it would help...
Call one of the locations of Cracker Barrel and they will tell you. Mildew is caused by moisture & lack of sunlight.
They are going to mildew. Just clean it with 409. Any Crackle Barrel employee can answer your question concerning guarantee!
You can actually ask one of the cracker barrel locations not necessarily the one you purchased it from they should be able to give you the right answer
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