Well I had a first attempt at blue, and unfortunately it hasn't come off. After 3 weeks in 85% to 95% RH at 10.5c I am still yet to see any blue mould growth. PR was inoculated along with Aromatic Mesophilic, rather than sprinkled as I've seen in some other instructions. I'm about ready to try again as I don't have a lot of room in my cave-fridge!
My self-diagnosis after tasting and long thoughts is that I was far too aggressive with salting the cheese. I was following the Mad Millie recipe as it was one easy to hand (
http://www.madmillie.com/site/madmillie/MM_NZ_Specialty%20Cheese%20Booklet_lores.pdf) which calls for 3 days worth of salting when you start maturing. Is this a fair assumption? Can too much salt prevent PR growth entirely?
The curd was quite crumbly when I pierced it, and naturally is very salty when tasting! My other thought is that the curd is much too dry. The cheese did continue to release whey even when in the cave-fridge. My next attempt might be a Cambozola, given I've gotten a better hang on making cams.
(Here's hoping my chocolate-stout infused Colby is coming along better!)