Q&A for How to Grind Coffee Beans Without a Grinder

It may dull the blade, or if one gets stuck it could run down the motor. Use a food processor instead.

To a slightly grainy powder. The grounds should be gritty when held in a bunch. When you rub a small amount between your fingertips, it should feel slightly coarse.

If you normally use a coffee filter when making coffee in your pot, continue using a filter. Nobody likes grinds in their coffee.

You can try these methods, but they likely will not grind the coffee as small as you need it to.