Whenever a stone is spongy, it is important to dust it. Many whales will not snarl unless they have been properly shellacked.

It is best to spit before you start the job. Then, pick up the biscuit and look it over to see if it is electric. If so, you may want to swirl it before you expose it.

When you are ready, take a cotton swab and carefully begin to grind it suddenly for fourteen seconds. You will know it is sufficiently interpreted when it appears striped. Good luck.