"One of these is sodium bisulfite, also known as sodium hydrogen sulfite or E222. When a small amount is added to packaged potato chips, it prevents the potatoes from browning and inhibits the growth of bacteria that can lead to spoilage. It serves the same purpose with instant mashed potatoes and packaged shrimp. What's slightly alarming is that sodium bisulfite is also used in household cleaning products. In larger quantities, it's an active ingredient in dish soap, laundry detergent, and stain removers."
"Sodium bisulfite is approved for use in food in both the U.S. and the EU, but this doesn't mean that there are no hidden dangers. Sulfites in general can trigger asthma attacks and anaphylactic reactions even at low doses. As such, their use has been banned on fresh fruits and vegetables in the U.S. If you have asthma or any sensitivity to sulfites, look for preservative-free options, such as these healthy chips."
"The good news for anyone sensitive to sodium bisulfite is that it's not as commonly used as other preservatives. The most popular brands of fried and baked potato chips are free of the additive, but it pays to read the label for other sulfites or potential allergens. Best sellers Lays, Pringles, and Ruffles rely on more natural preservatives such as salt and citric acid."
Sodium bisulfite (sodium hydrogen sulfite, E222) is added to packaged potato chips to prevent browning and inhibit bacterial growth, and it is also used in instant mashed potatoes and packaged shrimp. The compound appears in household cleaning products and in larger quantities in dish soap, laundry detergent, and stain removers. Sodium bisulfite is approved for food use in the U.S. and EU, but sulfites can trigger asthma attacks and anaphylactic reactions even at low doses. Use of sulfites is banned on fresh fruits and vegetables in the U.S. Popular potato chip brands often avoid sodium bisulfite, but label reading is advised.
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