Natural Preservatives Tagged: Shelf Life This topic contains 1 reply, has 2 voices, and was last updated by Anna Sward 2 years, 11 months ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts March 29, 2014 at 1:20 pm #9304 Jo-BarParticipant Hi – I am wondering if you can recommend a natural preservative to extend the shelf life of my own protein bars called Jo-Bars. Thanks March 31, 2014 at 10:48 pm #9416 Anna SwardKeymaster Hmmm I’m not very well-versed in preservatives… how long do you want them to last and do you want them to last outside the fridge? Also, what kind of bars are they? Curious about these Jo-Bars :-) Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.