It used to accept RF, but now it only supports Fuwafuwagy.
The Auto Heavy Sieve can be crafted out of any Heavy Sieve; however it will not take on its texture.
If a mod adding steel is loaded, it will require steel instead of iron.
To speed up an Auto Heavy Sieve, one can feed the tiny person inside to make them work faster. Any food will work; the tastier the food, the more it motivates your sifter to work faster.
Additionally, the mesh used inside the sieve can be enchanted with either Unbreaking, Fortune or Efficiency.