Bummer about the PC mush!
In case you need it, here's the contact info for Polyform. They have been responsive in the past, but it could take a few days if you send an email or leave a voice message:
Polyform Contact info, Elk Grove, IL open M-Thurs 800-4:30 Central time :
I had several pounds of red around Christmastime that was very mushy. I placed them unwrapped on several thickness of UNPRINTED newsprint (without a weight) inside a plastic shoebox with the lid just a tad ajar, so they dried in the AZ desert low humidity, but didn't get get dust on them. I turned them a quarter turn every day for 3-4 days. That's pretty much what I've had to do with some of the "new" PREMO. I try to do it a long time before I need it so that it can leach gently.
Anita in AZ