I don't mind buying frozen vegetables in bags, but you always have to read the ingredients, you'd be surprised at how many are made on shared equipment with allergens. (glutenfreeandmore.com)
Not all chocolates that are made on shared equipment clearly identify this on the label. (godairyfree.org)
This can occur at any point in the supply chain due to the type of ingredients used or through the use of shared equipment and processes during manufacture. (allergenbureau.net)