Reddit reviews 5" by 5" by 2" Deep Garden Trays w/Drain Holes - 20 Pack - Greenhouse/Gardening Plant Grow Flats
We found 2 Reddit comments about 5" by 5" by 2" Deep Garden Trays w/Drain Holes - 20 Pack - Greenhouse/Gardening Plant Grow Flats. Here are the top ones, ranked by their Reddit score.
Pack of 20 Tray Inserts - With drain holes5 inches by 5 inches - 2 inches deep5 inches by 5 inches - 2 inches deepGreat for hydroponics or soil - Wheatgrass, Microgreens, Seed Starting, MoreIndoor or Outdoor
Keeping things clean is 90% about careful process; no matter what you use, if you go fast, you'll probably make a mess. For personal consumption, I'd recommend small trays (like these from Bootstrap Farmer that will last you forever--you can get the flimsy ones for cheaper, but they don't last). Don't overthink the soil buildup--it would take a long time for those 5x5 trays to overwhelm your raised beds I'm sure. I just save my soil residue in a few Sterilite bins and add them every few months to the raised beds (I have 6 4x4 SFG-style raised beds).
Amazon
5" by 5" by 2" Deep Garden Trays w/Drain Holes - 20 Pack - Greenhouse/Gardening Plant Grow Flats https://www.amazon.com/dp/B00WEW0HZU/ref=cm_sw_r_cp_apa_i_46ITCbEE1XWJR