Popularity of peanut butter increases
- In 1921, a chemical process called partial hydrogenation was applied to the naturally occurring oil in peanut butter. This made the oil solid or semisolid at room temperature, and the nut butter thus remained blended. This process made it possible to ship the spread across the country.
- By 1920, Rosefield found Skippy, which debuted crunchy peanut butter and wide-mouth jars. In WWII, tins of Skippy were shipped with service members overseas.
- By 2020, SKippy and Jif released their latest peanut butter innovation of squeezable tubes.
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