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Ice cream can contain aircraft de-icer
Propylene glycol is a chemical compound that reduces the freezing point of water. It is widely used for de-icing aircrafts and runways and is also found in automotive windscreen de-icers. It is added to ice cream to prevent ice crystals from forming, maintain a creamy texture and ensure that the product doesn’t become too hard to scoop. According to the FDA, propylene glycol can account for up to 5% of total food intake without causing ‘frank toxic effects’.