well dont say never, i prefer pint jars, average of two ounces per cake!Darth is correct. Myc will dry out due to the moisture you gave when mixing your substrate prior to sterilizing. What size jars are you using? I have used 1 pint jars and they NEVER fully colonize, its too much substrate and by longer you let it sit, contams are finding their dirty fucked up little fingers into your poor innocent substrate!!!!
WHHAAATTT?!You could fruit them in the jar if you don't have the room to properly fruit them.
http://archives.mycotopia.net/discus/messages/5/18376.html?1039265527
Seems better than wasting them.