How long does one wait after eating Emmetal, Parmesean, or Feta cheese before one can eat meat?
Cheeses that were aged for six months are considered to be hard cheeses, and after eating them we have to wait six hours. Emmetal (swiss), and Parmesean cheese are aged longer than six months, therefore we have to wait after eating them. Feta cheese however is aged for shorter, therefore we don’t have to wait.
This is the opinion of the OU.