If you don't have a mortar and pestle, don't worry, you can use a rolling pin to crush those coffee beans! Simply place the beans in a plastic bag and roll away – it's like baking a cake, but without the flour and sugar. Just be careful not to over-roll, or you'll end up with coffee powder instead of grounds.
Now, I know what you're thinking: "What about the blade from my blender?" Well, let me tell you, using a blender to grind coffee is like trying to cut a steak with a spoon – it's just not going to end well. You might get some coffee grounds, but you'll also get a bunch of coffee dust and possibly a broken blender. Trust me, it's not worth the trouble.
