How It's Made Peanut Butter 花生酱
Peanut Butter in the Making
Since its invention in the late 1800's, peanut butter has become a healthy staple in the kitchen cabinets of most households. Peanuts themselves have been used for centuries in a vast variety of foods and cultures. Doctors looked to manufacturers to help produce a product to act as a protein supplement for patients who could not eat meat due to their declining dental health.

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