I always re-use my seed trays. I have little window greenhouses, the bottoms made of a styrofoam stuff and then it has a top made of plastic. I have had these things for years. I just make sure all the old soil-less mix is washed out, I scrub them well and then I let them dry. I have been doing this for years on end. Can't remember how many years I've had these - maybe 9? I have had no plants with diseases, no damp off problems, no scraggly seedlings. Once about every 3 years or so, I buy a bigger one that fits more seedlings. If you are trying to grow 10 kinds of chiles and you have 3-5 seeds of each plus trying to grow 15 kinds of heirloom tomatoes and you have 3-5 seeds of each, you need a lot of space. Once in awhile a "greenhouse" breaks and I go to Wal-Mart and buy something similar. Also, some of these greenhouse things have bottom parts that separate or rip when you try and get the seedlings out. Anyway, I always re-use. Never was told not to. --- "T. Matthew Evans" <matt.evans@ce.gatech.edu> wrote: > > I already have trays and covers, which I adapted > to cover taller > > seedlings, from previous years. > > This brings up an interesting point - I was going to > start seeds last night, > but then I recalled that I had read somewhere that > one should always use > impeccably clean trays for seed starting ===== RisaG Risa's Food Service http://www.geocities.com/radiorlg Updated 2/14/03 __________________________________________________ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com