Why does frying food make it unhealthy?
In: Other
Heating vegetable oil to frying temperatures causes it to oxidize and form aldehydes which are toxic. All that tar like gunk that collects over fryers is stuff you are also ingesting. When fast food restaurants switched from beef fat in their fryers to vegetable oil, they had to get a whole new class of cleaners to keep the vents from getting clogged. In fact, saturated fats (not trans-fats) are less susceptible to this, so frying your fries in beef fat is actually healthier than using vegetable oil.
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