|My preferred dishwashing sponges have a mesh covering, but the ones that I purchased had a major fault; whenever they came into contact with the slightest amount of oil (salad dressing, cooking oil, etc.) the sponge part would immediately collapse and disintegrate. My first solution was to replace the sponge part with one that was immune to this problem, but finding a sponge (or cutting one to size) was a major hassle. I now take any "oil resistant" sponge, measure it, and construct a cover for it from mesh scraps left over from making interior pockets in outerwear. I serge the three sides of the cover, insert the sponge and hand sew the fourth side. I now have mesh covered sponges which I can use to wash out salad bowls, etc.