The following cleaning routine is recommended for cleaning in the bulk starter division. In case of phase attachs, these recommendations should be followed for cleaning all the production facilities (except for heating devices).

1. Rinse with portable water until no product residues are washed anymore.(do not use rensing water for pre-washing)

2. Alcaline cleaning with 2 % NaOH or highly alcaline detergent *)
90 C, 20 min. (runback temperature at least 85 C)

3. Rinsing with portable water.

4. Nitric acid (0.5 - 1 % ) or other acid detergent *)
70 C, 10 - 15 min (runbac temperature at least 60 C)

5. Rinsing with portable water.

6. Sanitizing.

Chemical: chlorine min. 200 p.p.m. of active chlorine.
Time: 20 min; temp. : 30 - 40 C

Thermal:
a) hot water : 95 C, 15 - 30 minutes (time counts after reaching
the runback temp. of 90 C.)
b) steam : 95 C; 15 - 30 min (time counts after reaching the
material temp. of 90 C; for tanks often up to 45 min.

7. If production stops after cleaning, sanitazing according to 6.
should be repeated before filling with milk.

*) Please consider recommendations of the manufacturer, epseciaally regarding the technical limits of the material.