"La lenticchia non va tenuta a bagno. Si consiglia una scelta a dito e un accurato lavaggio prima della cottura"
I think Scelta is quality and dito a finger, so I think this is asking me to manually check the lentils [for stones] since they've not been washed. Then give the lentils a careful wash.
Google translate thinks otherwise, that
lentils should not be kept in the bathroom. It is advisable to choose a finger and a thorough cleaning before cooking.
Which is less than helpful...