Ready Hour Freeze Dried Pineapple lasts up to 25 years unopened, and one year once you open the package. All Ready Hour packages are resealable zipper-top, heavy-duty 4-layer pouches with oxygen absorbers inside to extend shelf life. That way you can use what you want and store up the rest. Once you’ve opened a package it is good for up to a year. Case packs make throwing a bag of your favorite Ready Hour foods into your camping gear, RV or take with you hiking.