Halachic Challenges when making authentic Italian Cheese (Basar B'chalav #8)

From Yoreh Deah Shiur: R Eli Markowitz by R Eli Markowitz.

Parmigiano Reggiano

Scotch aged in Cognac

Buffalo Trace and Chometz

Coca cola on Pesach

Ketchup that's certified as Kosher L'Pesach with Kitnios

Non Dairy Creamers that are actually dairy. Adding to a coffee when one is fleishig