I have had a pork loin on the go since late September. 2.3kg, using about 170g of curing salt in total (I forget the exact number), this was applied in two steps, with each step being wrapped and left for 12 days.
After the 24 days it had an afternoon in the fridge and was then hung in a cupboard at 17 - 21 degrees, 65 - 75% humidity for 3 days. After this period it was larded and peppered, after some 3 weeks I decided I wanted to have a look and maybe try a bit, scraping away the lard revealed quite a lot of clear liquid ono the surface of the meat, looked like quite sticky, but felt greasy. The meat was a pinky/grey colour, not the deep reddy shade I had expected, it did not smell of anything more than pepper. The lard was probably up to 3 - 5mm thick in places.
The weight had dropped from 2.3kg to around 2.1kg in the salt and had dropped to 2kg after 3 days in the cupboard. After 3 weeks of larding it had dropped to 1.93kg. I decided to remove the lard (as much as I could easily remove) and hang back in the cupboard naked. After a further week it is covered in a white covering, feels a bit like a brie. 2 photos are attached. The grey patch on the side of the loin is at the lowest point, it seems to be getting smaller and turning white.
Is this white residue a problem, or is this quite safe. The weight is now 1.7kg, should I re-apply the lard/pepper or leave it as it is.