It is now, but it foamed up the moment I ladled the curds onto the draining rack, long before the brining stage. I guess this is one of the ‘interesting’ aspects of using raw milk unpasteurised, although I have to say in my defence that my dairy hygiene is good, being based on that used in the dairy industry, and using the same cleaners / sanitizers.
The brine I use is either the standard 20% salt in water, or more usually 12.5% salt in the acidified whey, which is the traditional brine. The lactic acid in the ripened whey is also mildly preservative (e.g. as in sauerkraut) allowing the salt content to be reduced somewhat & resulting in a less salty tasting cheese.