This is what actually refines the chocolate. You couldn’t make chocolate without it.

I recently bought a wet grinder from Santha USA and when it was delivered the motor dome was broken. But the unit had lots of dings and scratches, looked like a refurnished unit - when I told the rep this, he offered to refund the money. Unfortunate thing is rep is not picking up the phone now so I can ask him about the return shipping and such -quality of the product is mediocre and doesn't deserve the premium they charge compared to other grinders. Don't buy if you are expected warranty support from them.