Testing the Consistency of Food

Various test kits are available for different products and standards or manual and automatic surface detection. The choice of the accessories depends on the consistency and conductivity of the sample.

This Application Report gives an introduction on consistency measurement of food products. Anton Paar offers for the penetrometer PNR 12 a broad range of accessories for the sample analysis

1.1 PNR 12 – Test Principle

The PNR 12 is a gravity penetrometer and measures the resistance a material provides against being pierced by a specifically shaped test body. A needle-shaped or conical test body is lowered precisely to the sample surface, and then sinks into the material by its own weight during a defined period of time. This penetration which is indicated in penetration units of 0.1 mm or directly in millimeters allows a rating of the plasticity or consistency.

The origin of this penetrometer is found in the petroleum industry for testing the constitution of lubricating greases and waxes, or to measure the hardness of bitumen.

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