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Trade Effluent, Water & Fat Down the Drain

Why food effluent is expensive, what fats and product losses do to the bill, and the water-energy link in every washdown.

9 min read ยท Jacob Willis, Net Zero Lead ยท Last reviewed July 2026


Everything a food factory washes away, it pays for three times: once to buy the water, once to heat it, and once to send it down the drain, and that third payment is where food manufacturing gets uniquely expensive. Trade effluent from a food site carries fats, starches, sugars and product losses that are costly to treat, and the water company charges by strength as well as volume. That pricing turns effluent from a facilities afterthought into an energy manager's ally, because most of what reduces effluent charges (less water, less heat, less product in the drain) reduces the energy bill in the same motion.