In poultry and food plants, water and energy losses usually come from the same places: long rinse cycles, poorly targeted sprays, over-wide cleaning zones, repeated manual intervention and cleaning systems that rely on volume instead of impact. The utility bill rarely tells the full story. Every unnecessary liter may also carry heating cost, pumping cost, chemical dilution cost, wastewater handling cost and operator time.
For plant managers and hygiene teams, the practical question is not whether to reduce water or reduce energy first. The better question is where the cleaning process is using resources without improving hygiene. That is where food plants can save water and energy at the same time, without weakening the cleaning outcome.
Why water and energy are linked in industrial cleaning
Cleaning water is not just water. In many food production environments it has been pumped, pressurized, heated, treated, mixed with cleaning chemistry, distributed across the line and finally discharged as wastewater. Reducing unnecessary water use therefore affects several cost centers at once.
The link is strongest where cleaning uses heated water, high-pressure pumps, long operator-controlled rinse periods or repeated recleaning after failed inspections. In those areas, lower water use can reduce energy demand directly through less heating and indirectly through shorter pump running time, less wastewater load and less manual labor.
| Cleaning factor | Water impact | Energy impact | Operational relevance |
|---|---|---|---|
| Heated cleaning water | Less volume needed per cycle | Less heat demand | Important in sanitation and heavy soil removal |
| Pumping and pressure | Lower total flow | Lower pump running time if cycles are shortened | Relevant for belts, crates, filters and equipment cleaning |
| Spray targeting | Less overspray and runoff | Less energy wasted moving water that does not clean | Critical around hard-to-reach or moving parts |
| Recleaning | Fewer repeated rinses | Less repeated heating, pumping and labor | Directly linked to hygiene consistency |
| Downtime | Shorter cleaning windows | Less idle production time and utility use | Relevant to OEE and production planning |
The key is not simply reducing pressure or closing valves. If a lower-flow system extends cleaning time, increases rework or leaves residues in critical areas, it may reduce water on paper but increase total cost. The objective is higher cleaning efficiency per liter and per kWh.
Start with cleaning performance, not utility reduction
A common mistake is to set a percentage reduction target before understanding which part of the process actually creates hygiene value. In poultry plants, for example, a conveyor belt carrying high organic load has a different cleaning profile than a shackle line, crate washer or filter section. Each has different soil behavior, access limitations, spray angles, line speeds and hygiene risks.
A useful baseline should capture more than total water meter readings. At minimum, plants should measure water flow by cleaning function, cleaning duration, temperature, pressure, operator hours, disassembly time, rewash frequency and hygiene verification results. Where possible, the baseline should be taken at line level instead of factory level, because factory totals hide the biggest improvement opportunities.
IWC has covered this measurement discipline in more detail in its article on why water and energy performance matters in food production. For plants building a business case, this type of baseline is essential because it connects resource use to cleaning quality and production availability.
The baseline should also separate productive water from non-productive water. Productive water reaches the contamination point with enough mechanical action and dwell time to remove soil. Non-productive water misses the target, runs off too early, creates splash risk or is used to compensate for poor access, poor nozzle condition or inconsistent manual technique.
The main levers that reduce both water and energy
Most simultaneous savings come from changing how water is delivered, not from asking operators to clean faster with the same tools. The strongest levers are usually found in delivery control, inline cleaning design, soil removal strategy and automation of repeatable cleaning tasks.
First, target the point of contamination more accurately. Conveyor return sides, belt edges, hinge points, crate corners, shackle contact zones and undersides of equipment often need more directed cleaning than the surrounding area. Reducing spray width in non-critical areas while improving impact at the actual contamination point can cut water waste without lowering hygiene performance.
Second, increase mechanical cleaning effect per liter. Traditional high-volume cleaning often depends on large amounts of water to compensate for weak targeting. Systems that improve droplet speed, droplet distribution and contact with the surface can reduce the volume needed for the same cleaning task. This is especially relevant where residues are repeatedly removed from moving parts or where access for manual cleaning is limited.
Third, move suitable cleaning tasks inline. Inline cleaning can reduce the need for frequent disassembly, long manual washdown periods or end-of-shift catch-up cleaning. In poultry processing, this can be valuable for belts, shackles, crates and other recurring contamination points where soils build up during production.
Fourth, reduce rework. Failed cleaning checks are expensive because they restart the full chain of water, energy, labor and downtime. A cleaning system that delivers consistent results can save more than a low-flow nozzle that produces inconsistent outcomes.
Where plants usually find the biggest combined gains
Not every part of a plant offers the same opportunity. The best projects are usually areas with high operating hours, continuous soil loading, manual intervention or repeated cleaning failures. In poultry plants, this often points to belts, crates, shackles, filters and transfer points.
| Area | Typical resource loss | Improvement focus | Combined water and energy effect |
|---|---|---|---|
| Conveyor belts | Continuous or frequent rinsing over wide areas | Target contact points, belt edges and return paths | Less runoff, shorter cleaning and better control of residue buildup |
| Crate cleaning | High water volume and variable soil load | Improve spray impact and coverage inside corners | Lower recleaning risk and more efficient use of heated water |
| Shackle cleaning | Hard-to-reach contact zones and moving geometry | Place cleaning action where contact contamination occurs | Less manual follow-up and reduced cleaning interruption |
| Filters and screens | Clogging that drives manual washing | Maintain flow and remove buildup earlier | Lower downtime and less repeated high-volume rinsing |
| Equipment frames and transfer zones | Overspray and splash during manual cleaning | Control spray direction and sequence | Lower contamination spread and reduced wastewater load |
For multi-species meat and poultry supply chains, downstream quality expectations also matter. Premium meat suppliers and retailers such as Beef Boutique illustrate how much value the market places on consistent product quality, which makes upstream hygiene control and reliable cleaning processes part of the commercial chain rather than only a utility topic.
The highest-value projects usually have one more feature: the current method is labor-dependent. When cleaning quality depends heavily on operator experience, angle of approach or time pressure at the end of a shift, water and energy use tend to rise because teams compensate with extra rinsing. More controlled cleaning reduces that variability.
How Undine® technology fits into the equation
IWC International’s Undine® technology is designed around the principle that cleaning performance should come from controlled impact, not unnecessary water volume. The system mixes water and compressed air under pressure to create high-velocity microdroplets. In practice, this means the cleaning action can be concentrated more effectively on the surface or contamination point.
For plant teams, the practical value is not the droplet concept by itself. The value is what it can change in the process: less water directed at non-critical areas, stronger cleaning effect where residue accumulates, less manual intervention and better suitability for inline cleaning applications.
Depending on the application, current situation and production environment, Undine® technology can save up to 70% on water and energy consumption and up to 60% on labor costs. Those figures should be assessed per application. A crate cleaning project, conveyor belt application or shackle cleaning system will each have its own baseline, constraints and return profile.
Because Undine® uses compressed air, technical teams should include compressed-air demand in the energy balance. This is part of a serious business case. In many applications, the reduction in water volume, heating demand, cleaning time and manual work is where the total gain is found, but the final calculation should reflect the plant’s actual utility costs, air system efficiency and operating pattern.
For plants looking at broader water use across processing and cleaning functions, IWC’s article on process water solutions for more efficient food plants gives useful context on how process improvements, hygiene goals and resource reduction can be evaluated together.
Do not let water savings create hygiene or downtime problems
A water-saving project can fail if it is treated as a utility project only. Hygiene, engineering, maintenance, operations and procurement need to evaluate the same process from different angles. A system that looks efficient in isolation may create problems if it does not fit the production layout, line speed, access space or cleaning validation method.
Before changing a cleaning process, technical teams should review nozzle positions, pressure stability, drainage capacity, splash behavior, hygienic zoning, equipment access, control logic and maintenance requirements. In poultry processing, small layout details matter. A spray that removes soil effectively but pushes contaminated water toward a cleaner zone can create a different risk. A system that saves water but requires frequent manual adjustment can lose its advantage during real production.
Plants should also consider the cleaning window. If a new method reduces water consumption but adds time to a sanitation step, the business case may weaken. If it reduces disassembly, operator travel, manual rinsing and rewash, the total value can be much larger than the utility reduction alone.
This is why many projects benefit from starting with one high-impact application rather than trying to redesign the entire plant at once. A focused conveyor, crate or shackle cleaning project can create measurable data, build internal confidence and show how the technology behaves under real production conditions.
A practical KPI framework for saving water and energy together
The most useful KPIs are the ones that connect resource use to cleaning output. Total monthly water consumption is too broad on its own. The plant needs indicators that show whether the cleaning process is becoming more efficient, more consistent and less disruptive.
| KPI | What it shows | Why it matters |
|---|---|---|
| Liters per cleaning cycle | Water used for a defined task | Shows whether reductions are real at application level |
| kWh per cleaning cycle | Energy used for heating, pumping and supporting systems | Connects water reduction to utility cost |
| Operator minutes per task | Labor required for the cleaning step | Captures manual dependency and staffing pressure |
| Recleaning frequency | Number of repeated cleaning actions | Measures cleaning consistency, not just resource use |
| Downtime linked to cleaning | Production time unavailable due to cleaning | Links hygiene work to capacity and OEE |
| Hygiene verification results | Visual, ATP or microbiological verification depending on the plant’s program | Confirms that savings are not achieved by weakening cleaning quality |
| Maintenance interventions | Adjustments, blocked nozzles or system faults | Shows whether the solution is robust enough for daily use |
These KPIs should be reviewed before and after implementation under comparable production conditions. If production volume, product mix or soil load changes, the comparison should be normalized. Otherwise, a plant may overestimate or underestimate the value of the improvement.
A strong KPI review also helps with internal approval. Operations may care most about downtime. Hygiene may care most about consistency and verification. Engineering may focus on integration and maintenance. Finance may want payback logic. Sustainability may look at water, energy and wastewater reduction. A shared KPI set keeps the discussion grounded.
Implementation sequence for a realistic project
A practical project sequence keeps the focus on measurable operational improvement rather than isolated equipment replacement.
- Select one high-impact cleaning task: Start with a conveyor, crate, shackle, filter or equipment area where water use, labor or rework is visibly high.
- Build a baseline: Measure flow, time, temperature, pressure, labor, rewash and hygiene results under normal production conditions.
- Define the cleaning objective: Specify what must be removed, where it accumulates and how success will be verified.
- Assess integration constraints: Check line layout, access, drainage, air supply, controls, maintenance needs and available downtime for installation.
- Test under real operating conditions: Validate performance during typical soil load, line speed and sanitation pressure.
- Scale based on verified results: Use measured savings and hygiene performance to decide whether similar applications are suitable elsewhere in the plant.
This approach also avoids the assumption that one setup fits every production line. The right solution depends on process step, equipment geometry, contamination load, cleaning frequency and operational goals. In some areas, a standard solution may be sufficient. In others, a custom configuration is needed to reach the right balance between hygiene, water use, energy demand and labor reduction.
For more detail on keeping hygiene performance intact during resource reduction, see IWC’s guide on how plants can reduce water use without losing hygiene.
FAQ's about saving water and energy in food plants:
Can food plants save water and energy without reducing hygiene performance? Yes, but only if the project improves cleaning efficiency rather than simply reducing flow. Better targeting, stronger mechanical action per liter, inline cleaning and reduced rework can lower resource use while maintaining or improving cleaning consistency.
Where should a poultry plant start if it wants to reduce both water and energy use? Start with high-frequency cleaning points such as conveyor belts, crate washing, shackle cleaning, filters or areas with repeated manual intervention. These applications often combine water use, labor demand, downtime and hygiene risk in one place.
Does lower water use always mean lower energy use? Not automatically. Energy savings depend on the current process, water temperature, pump use, cleaning time, compressed-air demand and wastewater handling. The strongest results come when lower water volume also reduces heating, pumping, cleaning duration or rework.
How should compressed air be included when evaluating microdroplet cleaning? Compressed-air use should be included in the total energy calculation. A serious comparison looks at all relevant utilities, including heated water, pumping, compressed air, wastewater and labor. The business case should be based on the plant’s actual application and operating pattern.
What savings can be expected from Undine® technology? Depending on the application, current cleaning method and production environment, Undine® technology can save up to 70% on water and energy consumption and up to 60% on labor costs. Results are application-specific and should be validated with baseline data and real operating conditions.
Turn water and energy targets into cleaning performance improvements
The most reliable way to save water and energy is to improve the cleaning process itself. For food and poultry plants, that means directing cleaning action to the right points, reducing unnecessary runoff, limiting manual variability and validating results with operational data.
IWC International helps food producers assess where Undine® microdroplet cleaning, inline cleaning and custom solutions can reduce resource use while supporting hygiene, production efficiency and total cost control. The strongest projects start with one clear application, one reliable baseline and one measurable improvement target.
