General chat with the r&d manager, ask about your skills in production or analytical. As it is a relatively small company you have to fit the working culture. Space is nice and production workers are nice to deal with.
One teams interview, then one face to face interview on the site. Teams interview involves basic competency questions and motivations for the role. In person interview is more showing you the site and asking questions as you go along, simple formulation questions and some outside of the box ones.