Until the 1990's, after all, McDonald's used beef tallow for its fries.

This rumor should not be confused with the fact that McDonald's has in the past used beef tallow as its frying oil.

People who remember when McDonald's switched from beef tallow swear the fries have never been the same.

Of course, a disclosure that fries are made using a saturated fat, like beef tallow, would also be useful to many.

The elimination of beef tallow for frying potatoes is significant.

McDonald's replaced beef tallow with partially hydrogenated soybean oil in 1990.

In other words, hydrogenated vegetable oil turns out to be no better than beef tallow.

We called on the chain to lower the fat in its hamburgers and remove beef tallow from its french fries.

And, yes, beef tallow in their fries is part of that flavor.

The one room was lit by a lamp which burned beef tallow and waste oil.