Food preservatives
Preservatives are used in foods to extend their shelf lives. One of McDonald's Big Mac in Iceland is an example of a long-lasting processed food. It has been on display since 2009, in a glass box. Preservatives that has been discontinued by McDonald's are:
- calcium propionate that prevents mold growth on bread.
- sorbic acid that also inhibits mold from cheese
- sodium benzoate, which inhibits the growth of bacteria in the Big Mac special sauce.
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