I purchased fresh mozzarella bocconcini from Whole Foods six days ago. The mozzarella is sold in a brine solution. I opened the package when I bought it and have kept it refrigerated since, using the original packaging and brine solution. Today, I opened the package again to see some white substance floating in the brine as shown below. The mozzarella smells fine, and based on eating one bite, also tastes normal.
What is this substance, and is my mozzarella still safe to eat?