Discussion
Which one of the following statements is true for a high-pressure homogenizer?
Answer: B
The true statement is Solid particles in the suspension are disintegrated due to the high shear rate exerted by the liquid.
A high-pressure homogenizer forces the liquid at pressures of tens to hundreds of MPa through a narrow valve gap. The fluid accelerates to very high velocity, and the intense shear, turbulence and cavitation in and just after the gap break fat globules and particles into much smaller ones. This is how milk is homogenized.
It is not mere mixing, it injects no steam, and it does not compress solids into a cake; that last describes filtration or pressing.
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