The additional incredients probably make peanut butter have a longer...
· Comment — ReBoka Fuhksworth's photo · View on Facebook · Markdown source
The additional incredients probably make peanut butter have a longer shelf life and taste better. Less tasty peanut butter doesn't sell as well. Without preservatives, they have to toss the peanut butter earlier. So, the "natural" peanut butter must sell for a higher price.