Refrigerator crisper and ozonation system and method
View Patent ↗A crisper drawer for postponing postharvest produce deterioration having a drawer housing that substantially defines the size and shape of the crisper drawer and fits within a residential refrigerator. A chamber within the drawer housing is cooled by the refrigerator. An ozone generator provides gaseous ozone to the chamber, and an ethylene scrubber reduces levels of ethylene in the chamber. An ozone level control with the ozone generator controls ozone levels.
1. A crisper drawer for postponing postharvest deterioration comprising:
a. a drawer housing having a substantially sealable interior chamber for storage of produce;
b. an ethylene scrubber;
c. a coronal discharge circuit, the coronal discharge circuit affixed to the interior chamber; and
d. an ozone level controller in communication with the coronal discharge circuit;
e. whereby the ozone level controller turns off the coronal discharge circuit in response to ozone levels above 0.15 ppm, and turns on the coronal discharge circuit in response to ozone levels below 0.05 ppm.
2. A crisper drawer according to claim 1 , further comprising:
a. a heating element;
b. whereby the heating element activates to increase a temperature within the crisper drawer when the temperature within the crisper drawer falls below the temperature outside the crisper drawer.
3. A crisper drawer according to claim 1 wherein the ethylene scrubber comprises a media impregnated with potassium permanganate.
4. A crisper drawer according to claim 3 wherein the media impregnated with potassium permanganate is selected from the group consisting of alumina, silica gel, vermiculite, and zeolite.
5. A crisper drawer according to claim 1 , further comprising:
a. a humidity controller:
b. whereby the humidity controller maintains humidity in the chamber between 80 percent and 100 percent.