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Technical guide

Direct steam injection in pilot heat treatment

Steam can heat a liquid by entering it directly or transferring heat through a tube wall.

Stainless vessel head, curved tube and sanitary fittings on the direct-steam-injection unit
Vessel head and sanitary connections on the steam-injection moduleAI restyled from the source photograph

Steam heats the liquid quickly as it condenses and adds water to the product. Choosing a setup depends on steam quality, flow and temperature control. Some setups include flash cooling after heating.

A tubular system transfers heat through a metal wall. Comparing it with steam injection in a pilot run shows how the two heating patterns affect a recipe and what each setup needs to run.