On certain things they use alot of oil like fries and chicken nuggets. Anyways ALOT
McDonald's has used thousands of gallons of oil on their French fries since opening. This exact number has not been calculated for all locations on Earth.
you use about 1/2 of the frying pan.
McDonalds, first used to up-size French Fries & Sodas
You can certainly fry french fries in hot, melted lard. For years McDonalds often used lard for cooking their french fries - giving them a flavor that most of their customers found superior to the fries their competitors cooked in vegetable oil. Frying French fries in beef tallow lard, or other animal fats adds saturated fat to them but gives them a flavor that is difficult to reproduce when they are fried in vegetable oil.
NaCl
to be eaten i guess.
pan
The number of calories in 40 French fries depend on how they are prepared, what size they are, and what brand they are. Fries that are baked have less calories than fries that are fried for example.
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Tomato source
Potato!
"French fries" is an Americanism, and no one knows who first used the term. In Britain they are called chips. What the British call crisps are called potato chips by the Americans. The French call French fries pommes de frits, i.e. fried potatoes.
They used to do a super size. That may have been 1000 calories. The largest size now is 500 calories.
Many oils can be used for making french fries. While most places use vegetable oil or canola oil, krill oil can be used as well. You can ask your favorite restaurant what type of oil they use.