Not all water carries the same value. Every industrial facility runs on an implicit hierarchy for its water, even if no one has written it down. Some water is essential and non-negotiable — it becomes the product, or it keeps the product safe. Other water exists to support operations, and how carefully that water is managed varies enormously from plant to plant.

In food and beverage manufacturing, this hierarchy is unusually visible — and unusually costly to get wrong.

Most of a F & B plant’s water is water it can’t compromise on

Water used in food and beverage manufacturing generally falls into three categories: process water (which touches the product directly or indirectly), cooling water (which removes heat from processes and equipment), and boiler feed-water (used to generate steam for sterilization and heating).¹

Across the sector as a whole, close to three-quarters of the water used is drinking-quality water.¹ That is the standard required wherever water comes into direct contact with food — and, in many plants, it’s also the standard applied more broadly than strictly necessary, simply because it’s the water that’s already on hand.

Cooling doesn’t need to meet that bar. Heat rejection from chillers, condensers, and process equipment has no food-contact requirement. And yet cooling systems routinely draw on the same high-grade water supply as the parts of the plant where drinking-quality water is genuinely non-negotiable.

The architecture problem hiding in plain sight

Part of the reason comes down to system design. Cooling architecture in food and beverage plants generally falls into a few categories: once-through systems (no recirculation), closed circulation loops, open circulation systems using cooling towers and direct-contact cooling.

Of these, once-through cooling systems carry the highest water demand of any cooling architecture available.¹ They’re simple and reliable, which is exactly why so many plants still run them — but simplicity here comes at a real and ongoing water cost, one that compounds every day the system operates.

Fouling adds a second, quieter cost

Even in a more water-efficient closed-loop or cooling-tower system, a second factor erodes efficiency over time: Fouling.

As scale and biological deposits build up on the inside of condenser and heat exchanger tubes, heat transfer efficiency drops. A fouled system can no longer reject the same amount of heat with the same water and energy it used when the tubes were clean — so operators compensate. That typically means more water flow, more frequent blowdown, and more makeup water, just to hold the same operating setpoint a clean system would reach more efficiently.

The usual response — chemical dosing or periodic mechanical descaling — solves the immediate scaling problem but introduces new ones: chemical handling and disposal, tube wear from repeated mechanical cleaning, and downtime for the cleaning itself.

A different way to keep condensers clean

CET Enviro’s SBR™ (Scale and Bio-Removal) system addresses fouling at its source rather than after the fact. Instead of dosing chemicals or manually descaling, SBR™ precipitates scale-forming salts out of the water in a dedicated reaction chamber, before they ever reach the heat exchanger surface. That keeps tubes clean continuously, without chemicals — and it allows cooling towers to run at significantly higher cycles of concentration, which is what actually drives the water savings.

In practice, that translates to 30–70% water savings and complete elimination of chemical dosing, typically with a payback period under two years.

For a food or beverage plant, the case is straightforward: water spent compensating for a fouled system, or flushed out to control scale buildup, is water that never needed to compete with what the plant needs for product and hygiene in the first place.

Where to start

If you don’t know how much of your plant’s water use cooling actually accounts for or how much of that is being spent fighting fouling rather than doing useful work, that is  the first thing worth finding out.

Learn more about SBR™ →

Request a free facility audit →

References

1. Valta, K., Moustakas, K., Sotiropoulos, A., Malamis, D., & Haralambous, K.J. (2016). Adaptation measures for the food and beverage industry to the impact of climate change on water availability. Desalination and Water Treatment, 57, 2336–2343.
2. https://academic.oup.com/fst/article/34/4/58/7818771

A clean condenser keeps your operations steady and efficiency high. And lowering in the efficiency of the system can lead to considerable losses of time, energy and finances. That’s why regular cleaning is important.

Here are five methods to clean condensers:

Using Automatic Tube Cleaning System (ACCS)

As the name suggests, Automatic Tube Cleaning System is an advanced measure of cleaning condenser tubes. A dirty condenser faces many issues including fouling and depreciation of the tube’s material. The ACCS gets rid of all these issues and that too, in a very small amount of time. It optimizes the heat transfer performance and removes downtime. This helps you in getting effective results with maximum efficiency. If you’d ask us, we’d suggest going with ACCS.

Cleaning with a Brush

The oldest method of cleaning condensers is through brushes. In this method, you’d attach a brush on a long rod, making sure that the brush’s bristles are longer than the radius of the tube. Then you’d use the rods to clean the interior of the tubes after throwing in some water for lubrication. It’s an obsolete method and has been discarded by many organizations. Its main issue is it leaves a lot of residue inside the tube and takes up a lot of time and energy.

Cleaning with TCGs

TCG stands for Tube Cleaning Gun. These guns project high-pressure water in the tubes and target the dirt. Like the ‘brush method’, this method is also old and obsolete. The primary issue with this procedure is the consumption of time. And it has the risk of increasing the clog inside the tubes as the high-pressure water may not be able to get rid of all the dirt.

 

Cleaning with Chemicals

In this method, one adds acid solutions and circulates them through the tube bundles. This softens the scale deposits which are then cleaned with brushes. Chemicals are quite costly, and that’s why this method is also discarded in modern operations. Moreover, to perform this procedure effectively you’d need a highly trained expert.

Using COLTCS

COLTCS stands for Condenser Tube Cleaning System. In this method, specialized sponge rubber balls are inserted in the Condenser. They prevent the build-up of any scaling or fouling. After the passage, the system retrieves the balls and pumps them into inlets. It’s an automatic system. This means you won’t have to worry about its operation and efficiency. This is another favored method of multiple industries.

What’s your Choice?

Which method would you prefer for your condenser’s cleaning? Let us know through your Comment. We’d love to hear from you. You can find out more about ACCS and COLTCS.