Ammonia and water- solvates most grease and emuslifies it into the water, no additives. highly effective... and soooooo “organic”!
Ammonia, like other strong bases, chemically reacts with fats and oils to form soap ... which, of course, dissolves very nicely in water. The reaction is called "saponification".
Soaps and detergents emulsify fats and oils, bases convert them to soap.
Ammonia is a very useful cleaner in the kitchen.