If you want a really fine grind in a hurry you can use one and get ok results. You have to let it rest every 30s or so to cool down or it heats the grounds too

If you want a really fine grind in a hurry you can use one and get ok results. You have to let it rest every 30s or so to cool down or it heats the grounds too much. I liked to shake it while grinding too. It isn't quite Turkish grind and there are a few large pieces that won't get full extraction, but if you want really fast extraction (or fast intentional over extraction) it works.