Tetra Pak® GDL and Rennet Dosing unit is used for batch mixing of GDL powder in concentrated cheese milk and continuous feeding of the filling machine with simultaneous in-line dosing of rennet to the mixture.
Instead of the natural, but relatively slow, acidification of the retentate or cheese milk, Glucono-delta-lactone (GDL) powder is used for very fast acidification. This results in a quick process, reducing the acidification time from 12-14 hours to 5-10 minutes. By ensuring a shorter total production time, a constant quality of final product, higher yields and a prolonged shelf life of the cheese, GDL has become a preferred acidifier in the manufacturing of white, feta-type cheeses.
Mixing of GDL powder and rennet dosing.