Unfortunately, they can but do not chop fresh herbs. There remain large pieces, completely unusable. Wild garlic, chives and tarragon, nothing really to do. The (actually unwanted) addition of liquid has not helped. So if you want to get some fresh, finely chopped herbs, should not rely on this device.
For the preparation of baby food, the herb mill may be perfect, as Kräutermühle but it is useless. Unfortunately, we had to re-buy a separate device :-(