- If you want a soft sponge, pick the luffa while its green. If you want a tougher quality, wait till the outer skin yellows and dries out. Ref: John Kufrovich
- The bigger ones will be tougher and make good luffas; the new little ones should be good in stir-fries. There are lots of Google sites on making luffa sponges. http://www.groovygreen.com/groove/?p=689 Stephen