Martinelli’s is recalling more than 170,000 apple juice bottles because their contents may be contaminated by patulin, a toxic substance produced by some fungi.

The recall covers round glass 10-ounce bottles with white metal screw-top lids that were distributed in 28 states, from Alabama to Wisconsin, according to the FDA recall notice. S. Martinelli & Co., the Watsonville, California, beverage company that makes the drink, didn’t immediately respond to a request for comment.

The recall is listed as Class II, which under FDA guidelines signals that a product may “cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote.”