Cheese farm Groot is not one of the main touristic cheese farms. It is a lot smaller and therefore also a lot friendlier. You should not be in a hurry because the staff is just the woman of the house with her daughter. Her husband will show you around the stables and tell you all about his way of farming.
With my French group, we stayed at least an hour before everyone had their cheese tasted and bought. And of course visited the cows and their fully automatic milking robot.
Next was the Schermermolen, the mill museum I always love to go to. Fred, the miller was his usual cheerful self and the guest enjoyed the explanation and the film about the great polders in Low-Holland.