Herb grinders are used by many people. These people get excited about growing their own herbs. Herbs that are grown straight from a garden seem to taste better than those that you purchase in a store. Those may have been on the shelves for weeks. After picking the herbs from their plants, they will need to chop them into smaller pieces. Usually, people need them finely chopped. An herb grinder can do that.
They are simple to use and fairly expensive. You can also buy them online. You place the herbs into the grinder and twist. The metal teeth inside the grinder will grind and chop the herb into many pieces. Some herb grinders have several levels. One level may be for collecting the herbs.