Typically, the "classic" Lay's chips come in a yellow bag. The FDA stated that symptoms of those allergic to milk could include "hives, facial swelling, upset stomach, vomiting, wheezing ...

A previously undisclosed allergen has triggered a recall on a limited number of the yellow-bag Lay’s potato chips in two states in the upper Northwest. Frito-Lay issued a recall on 13-ounce bags ...

The recalled 13-ounce bags, which are yellow and include a red Lay's logo and a blue "Party Size" banner, also bear the manufacturing codes 6462307xx or 6463307xx. No other Lay's products ...