Long life dough package
View Patent ↗This invention relates to a packaging material for unbaked dough products which includes a container that is impermeable to water vapor transmission, a relative humidity control device in the container, dough, and a water permeable sheet forming a cover for the container wherein the relative humidity control device includes a water vapor permeable container containing a solidified humectant composition which further includes a humectant salt, water and carrier.
1. A package for a dough product comprising:
an outer container that is impermeable to water vapor and having an opening;
a relative humidity control device that includes a water vapor permeable inner container containing a solidified humectant composition comprising a humectant salt, water and a carrier disposed in the outer container;
a dough product in the outer container; and
a water vapor permeable cover closing the opening in the outer container.
2. The package of claim 1 , wherein the humectant salt comprises potassium sulfate.
3. The package of claim 1 , wherein when the relative humidity in the package is maintained at between 90 and 99%.
4. The package of claim 1 , wherein the water vapor permeable cover comprises a transparent or translucent sheet.
5. The package of claim 1 , wherein the cover comprises an acetate sheet.
6. The package of claim 1 , wherein the container comprises polyvinyl chloride polymer or polycarbonate polymer.
7. The package of claim 1 , wherein the cover has a water permeability of between 2 and 20 gm/100 sq. in./24 hours.
8. The package of claim 1 , wherein the relative humidity control device comprises at least one of a biocide and a fungicide.
9. The package of claim 1 wherein the relative humidity control device comprises at 95% humidity has a solid portion of humectant salt and has a liquid portion of the humectant salt in water.
10. The package of claim 2 , wherein the dough product comprises wonton wrappers.
11. The package of claim 1 wherein the relative humidity control device has a water activity of between 0.93 and 0.98.