I absolutely love this little dish pacs! I am always on the hunt for a worthy product. My dishwasher is about 10 years old, and has seen better days. I put these poor pacs to the test with all the grime and yuck I left on my dishes! I have yet to re-run anything after about 8 loads! My plastics seem to dry nicely with no leftover water! They definitely have not left any traces undissolved in the tray OR the bottom of my ancient washer! Try 'em, you'll like 'em!!