PROCESS ANALYTICS

Quality control for raw milk delivery

Quality Control for Raw Milk Delivery

Dairies are supplied with raw milk around the clock. High quality standards are placed on the raw milk so that an online-monitoring of unloading procedures of trucks is necessary. If a raw milk of inferior quality (sour milk) is filled in the storage tanks, the whole milk stock will be spoiled.

Food and Beverage

Keyfacts Application

Sector

Dairy

Application

Online Monitoring of the unloading Process

Measured Parameter

pH value

Key Requirements

Online measurement with automatic sensor cleaning and calibration for 24/7 availability

Warnings/alarms in case of failure so that pumping of raw milk to the storage tanks can immediately be stopped

Fulfillment of all hygienic requirements such as CIP and SIP

Measuring in Raw Milk

Application Description

The quality of raw milk has a decisive influence on the quality of dairy products. Fresh milk has a pH value of 6.5 to 6.7. The lactic acid bacteria contained in the milk convert lactose to lactic acid, which is primarily dependent on the temperature. If the milk is sour, the pH value is lower, and from a pH value of 4.5 the milk coagulates. Therefore, measuring the pH value is ideal for quality inspection direct during delivering.

Requirements of Application

When milk is delivered to the dairy, pH measurement is mandatory to prevent contamination of an entire tank. As with all applications in the food industry, the requirements are particularly high: In addition to accurate pH determination, the sensors must also be suitable for the usual CIP and SIP processes. Cleaning and sterilization take place here by passing cleaning and rinsing solutions as well as hot steam through the closed system.

Why Knick ?
With the combination of high-quality pH sensors and the matching analysis measuring system, the quality of the raw milk can be checked directly during unloading. The connection to higher-level systems enables them to stop the unloading process immediately if the pH value is too low. Contamination of an entire tank is thus effectively avoided. With the automatic cleaning and calibration system and a retractable fitting with sensor gate, time-consuming removal and replacement of the sensors is no longer necessary. This results in high availability and low manpower requirements for maintenance.

Matching Products

SE547N pH Sensor | Memosens | 120 mm | CIP/SIP capable and autoclavable

Product number:

SE547N/1-NMSN-A2

Product number:

SE555X/1-NMSN

WA130H SensoGate Retractable Fitting | Modular | Pneumatic | For Uniclean and Unical | For hygienic applications

Product number:

WA130H

Unical 9000 Electro-pneumatic controller | For automatic cleaning and calibration | Hygienic Surface

Product number:

9000-NS

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