Today is the 15tyhn day of the Omer (2 weeks,1 day)
If accidentally one cooked a milk food in a meat cookware sometimes the food is prohibited and sometimes is permitted.
If one for example fried a cheese omelet in a meat pan.
Case 1: if the pan was not clean and it had some visible leftover of meat, even though those were small leftovers, like meat fat etc, the omelet is forbidden because cheese got mixed with meat.
Case 2: if one fried the cheese omelet in a completely clean meat pan that was used with meat during the last 24 hours, the cheese omelet is forbidden because it absorbed the meat particles on the pan’s walls.
Case 3: If the meat pan was not used with meat for the last 24 hours, and one accidentally made a cheese omelet in that pan, then the omelet is permitted. Because the Halakha considers that after 24 hours the meat particles absorbed in the pan’s walls are decomposed (noten taam lifgam) and they are not considered meat anymore.
As for the cookware, in all cases, it requires Hag’ala (immersion in boiling water) or Libbun (firing) depending on the type of utensil. It will be explained BH in following Halakhot.
