In December, the FDA issued the original recall, with more than 6,000 bags of 13 oz classic chips removed from shops in Oregon and Washington|Willis Lam|CC BY-SA 2.0

The last few months have seen a rise in food recalls, and Lay’s Classic Potato Chips is the latest product that the Food and Drug Administration wants off the shelves.

In December, the FDA issued the original recall, with over 6,000 bags of 13 oz classic chips removed from shops in Oregon and Washington due to undeclared milk, a major allergen.

Earlier this week, the FDA reclassified the recall to Class I, which is described as the “reasonable probability that the use of, or exposure to, a violative product will cause serious adverse health consequences or death.”

Notably, last month, the FDA also reclassified its recall of some Costco eggs to Class I.

Experts believe the jump in ready-to-eat foods and prepackaged meals can be the cause behind increasing recalls.

Recent recalls include Fresh Direct Dark Chocolate Covered Pretzels, Monkey Spit Barbecue Sauces, Pearl Milling Company Pancake and Waffle Mix, Wabash Valley Farms, and Rural King, among others.