How to Crumble Feta Cheese from Cooking and Cooking
Yield: crumbled feta cheese
INGREDIENTS
INSTRUCTIONS

Cut off the amount of cheese you want to crumble with a knife. Run the feta under cold water for 10 to 20 seconds; this will clear away any brine and firm it up. Use a fork or your hands to break up the feta into small pieces (do not mash).

Source: www.cookingandcooking.com