the present disclosure relates to methods for forming reclosable bags with slider zippers which can be used in high pressure pasteurization . in particular , these methods form reclosable bags with a shroud formed over the slider zipper , with a patch or cap for protecting the slider during high pressure pasteurization . when the user tears the shroud from the bag , the patch or cap remains attached to the shroud but releases from the slider . an alternative embodiment forms an air pocket in the shroud to protect the slider .