Been doing this for about 3 years. Got tired of trying everything to reduce food from getting soggy by comming in contact with the ice and then the bag or container sweats on the inside.
Made out of PVC pegboard, cut to fit snugly, finger holes are a must.
This application will work excellent when using dry ice too, no worry about freeze burning. Also keeps the ice a little more protected to last longer.
Usually I freeze 6x6x6 plastic tubs filled with water, put the whole thing in the bottom, this also keeps the pegboard level.
