A rubbing stone is a handy non-electric kitchen tool for grinding just about anything, from peppercorns to avocados. A food processor or electric grinder can burn off the aroma of your food, herbs or spices, but with a rubbing stone, also known as a mortar and pestle, you can control both the grind, and the flavor. Using a rubbing stone may seem simple enough, however these tips can help you get the best results.
Instructions
1. Choose the material for your rubbing stone based on how you want flavor to carry over to your next grind. When you want a pure flavor, choose the least absorbent materials such as marble or porcelain. When you want the flavor to linger into the next food item, choose more absorbent materials, such as stoneware or wood.
2. Use the proper sized rubbing stone. For spices, herbs and other small food items, choose a small mortar. If you are grinding larger quantities or larger food items use a larger bowl. In this case, you may even decide on a stone surface.
3. Place the food in the mortar or on the stone surface. Turn the food around in a circular motion while grinding. Be in control of the pestle, using gentle but firm motions. Use downward pressure, but don't beat down on the food.
4. Clean your rubbing stone properly. In most cases, it is best to wash by hand with mild non-perfume soap and warm water. Generally, it is not recommended to wash a rubbing stone in a dishwasher, especially when it is an absorbent material.
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