Story highlights Eight companies have recalled products, citing possible salmonella

Powdered milk products in the recall were shipped to nearly 40 states

(CNN) The Food and Drug Administration announced a series of related recalls of products, including waffle mix, kettle chips and macaroni and cheese, because of possible salmonella contamination.

Over the past week, eight recalls have been issued because the products contain contaminated milk powder. The milk powder, made by Valley Milk Products, was recalled after salmonella was found at the company's manufacturing facility. This includes Valley Milk's Sweet Cream Buttermilk Powder and High Heat Nonfat Dry Milk Powder, both sold in 50-pound bags.

"These products are not sold directly to consumers, but are used ingredients in a number of foods such as bakery products and distributed by brokers," said the recall statement from Valley Milk Products. No samples of milk powder have tested positive for the bacteria, according to the company.

However, this prompted several companies to issue their own recalls of products made with the recalled milk powder. The recalled products have been shipped to dozens of states nationwide.

One Ohio company, Brand Castle LLC, had shipped 16-ounce red boxes of monkey bread mix to nearly 40 states in every corner of the country -- from Arizona to Washington, Florida to Massachusetts -- that are now being recalled