Drinks & Liquidized Foods Testing Methods
IDDSI Flow Test
When evaluating drinks and liquidized foods, IDDSI chose a gravity flow test using a 10ml syringe, as a practical objective measure to classify drinks based on their rate of flow. The controlled conditions are broadly representative of drinking through a straw or beaker. Although the equipment is simple, it is already internationally standardised and the IDDSI Flow Test has been found to categorise a wide range of liquids reliably, in agreement with currently existing laboratory tests and expert judgement. It has been found to be sensitive enough to demonstrate small changes in thickness associated with change in serving temperature.
For more information on evaluating liquids, please see here.
Below, you will also find videos, demonstrating drink thickness and liquidized foods testing with the syringe test.