Scientific Method Defining The Details

A subscriber to the NFI Facebook page posted a great question What brand of peanut butter jars is NFI using in the Nomadic Fungus Spore Sprouting Test; Jif, Skippy or Peter Pan?

NFI is following the standard protocol of scientific methodology and so yes, we have documented who manufactured the peanut butter and whether it was creamy or crunchy.

One big determining factor on choosing which jars to use was not the chemical make up of the peanut butter but the lid on the jar. Most peanut butter companies such as Jif, Skippy and Peter Pan use plastic lids which we were concerned would not hold up to the Nomadic Fungus Cocktail. So we opted for Smucker's Natural and U.S. Grade A Fancy Government peanut butter which both use good old, Made in America steel lids.