I'm interested in an 8" granite mortar and pestle. I've heard great things about the model offered by Import Foods, and I wonder how it stacks up to the Libertyware model. The Libertyware model is half the price, so I'd rather get that if they perform similarly.
I was thinking the same thing; it's just a piece of rock, after all. Still, I'm concerned that the texture of the bowl may differ between brands, as reviews of the Import Food mortar and pestle suggest it is very smooth. Is yours smooth as well? Oh, and thanks for the advice. I often find it's little bits of information like this that make the biggest differences in my progress.
I have a small mortar and pestle, purchased at Cost Plus for under $10. I'm very pleased with it. The inside is not polished. It appears to have most of the roughness that was left by the reaming tool. I'm not sure you would want something that is too smooth. The object is to grind or pulverize foods to a finer consistency. If there is nothing to provide resistance, the food will just slip around inside the bowl.
I also have another one; it's stainless steel, with little factory bumps inside. Wasted my money on that one! I use it so seldom, I'm not even sure where it is right now. Whenever I do run across it, I'll probably put it into the box I'm filling for my next yard sale.