Manufacturer should need the diagram for the method of immediate cooling as water cannot be used it will extract all the charges and your hard work will be lost. Proper copper alloy a oxidiser should be used. otherwise there will be no functions. Copper oxide permanent static alloy can be used, but gives only 2 functions.Copper oxide nanowire with static charge is present in an electronic component which can be used for testing. As of now we have 3-4 technology of Rice Puller, i have started making a rice puller, it will be ready soon.