So I had a general question or I guess a request for ideas on possible dye we could use to test the film our product goes into. Our current dye is not food safe so we do all our test inside our quality lab and away from any product. Eventually we want to try and move stations onto the floor to do our test there. We thought about using food safe coloring, but I'm not sure were we could get that in bulk. Any tips or suggestions for dye testing would be greatly appreciated.