In 4–5-star hotels, the laundry department processes large volumes of towels, bed linen, pillowcases, uniforms and other textiles every day. As a result, energy consumption depends significantly on how industrial washing machines, dryers and flatwork ironers are programmed and operated.

In many cases, higher energy consumption is not simply caused by equipment capacity. It can also result from underloading, unsuitable temperatures, excessive drying time or incorrect moisture levels before ironing.

Optimizing the complete wash–dry–iron cycle is therefore not only about reducing electricity consumption. It can also help hotels shorten linen processing time, reduce textile wear and improve the overall efficiency of the laundry operation.

1. Optimize Laundry Loads for Better Energy Efficiency

Every wash cycle requires a certain amount of water, energy and operating time. When machines regularly operate with very small loads, the cost per kilogram of processed linen can increase.

Operate the Machine at an Appropriate Load Level

Instead of continuously running machines with low loads, the laundry department should organize linen by category and aim for a load level appropriate to the machine's rated capacity.

In practical operation, around 80–90% of rated capacity can be used as a reference range for efficient equipment utilization. However, the actual load should always depend on textile type, soil level and the manufacturer's operating recommendations.

• Avoid running machines with unnecessarily low loads.
• Never exceed the rated capacity of the equipment.
• Sort linen before loading.
• Adjust programs according to each textile category.

Sort Linen at the Beginning of the Process

Towels, pool towels, bed sheets, pillowcases and soft linen have different characteristics in terms of material, thickness, soil level and moisture retention.

• Bath towels: thick textiles that retain significant moisture after washing.
• Pool towels: may require separate processing depending on their use.
• Bed sheets and pillowcases: require appropriate temperature and cycle settings.
• Soft linen: may require different temperature and treatment conditions.

Proper sorting allows the laundry team to select more appropriate washing and drying programs and helps prevent some textiles from becoming over-dried while others remain damp.

2. Program Washing Temperature According to Textile Type

Heating water is one of the energy-consuming stages of the washing process. Therefore, using the same temperature for every textile category is not always the most efficient approach.

These temperatures are reference values only. Actual programs should be determined according to textile composition, soil level, chemicals used and the required treatment process.

Avoid Using High Temperatures for Every Cycle

A common mistake is to use high temperatures for all textiles in an attempt to improve cleaning performance. This can increase heating requirements and may also expose textiles to unnecessary thermal stress.

Instead of using one universal program, hotels should develop dedicated washing programs for different linen categories, defining water level, temperature, time, chemical dosage and extraction speed.

3. Optimize Extraction to Reduce Dryer Demand

After washing, the amount of residual moisture in textiles directly affects the time and energy required for drying.

High-G extraction can remove more water before textiles enter the dryer. However, extraction speed should always be selected according to textile type and the technical limits of the equipment.

Control Residual Moisture After Extraction

Instead of focusing only on drying time, the laundry department should monitor residual moisture after extraction.

• More consistent residual moisture makes drying easier to control.
• Insufficient extraction can increase drying time.
• Excessively aggressive extraction is not suitable for every textile.
• Extraction programs should be developed according to textile categories.

4. Set Drying Temperature According to Textile Type

Industrial dryers can be among the most energy-intensive machines in a hotel laundry. One practical way to control consumption is to avoid drying at temperatures higher than necessary.

Actual drying temperatures should be determined according to textile type, drying program and the equipment manufacturer's recommendations. Temperature should not simply be reduced without also considering drying time and final moisture level.

Moisture Control

If a dryer continues operating after textiles have already reached the required dryness level, energy continues to be consumed without a corresponding improvement in processing efficiency.

Systems equipped with moisture control can help determine when a cycle should end based on textile moisture rather than relying only on a fixed drying time.

5. Clean Dryer Filters and Exhaust Systems Regularly

Lint accumulation on filters or in exhaust systems can affect airflow. When airflow is restricted, drying time may increase and operating efficiency may decrease.

The laundry department should therefore include the following checks in its routine maintenance process:

• Clean lint filters.
• Inspect exhaust ducts.
• Check airflow.
• Clean areas where lint can accumulate according to the manufacturer's maintenance recommendations.

This is a relatively simple maintenance task but can have a direct impact on dryer performance and operating stability.

6. Optimize Flatwork Ironing According to Textile Moisture

For hotels using industrial flatwork ironers, the moisture level of textiles before ironing can significantly affect ironing efficiency.

If textiles are too wet, the ironer needs more time to remove moisture. If they are excessively dry, the ironing process may also become less efficient.

Key Operating Principles

• Feed textiles into the ironer at an appropriate moisture level.
• Avoid feeding excessively wet linen after extraction.
• Avoid allowing textiles to become excessively dry before ironing.
• Set ironing temperature according to textile type and machine requirements.

For cotton and blended fabrics, temperature and moisture settings should be adjusted according to material characteristics and the equipment manufacturer's operating recommendations.

7. Standardize Wash–Dry–Iron Programs Instead of Relying on Manual Adjustments

A hotel laundry may process many textile categories within a single day. If operators repeatedly adjust machines based only on individual experience, energy consumption and textile quality may become inconsistent.

A more systematic approach is to establish standardized operating programs for each textile category.

Each Program Should Control

• Load level.
• Water level.
• Temperature.
• Washing time.
• Chemical dosage.
• Extraction speed.
• Drying temperature.
• Final moisture level.

Standardized programs help operators work more consistently and allow management teams to compare energy consumption across different cycles.

8. Use Operational Data to Monitor Laundry Performance

Modern laundry equipment can provide operational data related to machine performance. Depending on the model, systems may support cycle counting, fault alerts or monitoring of selected consumption parameters.

This information can help identify issues such as:

• Machines frequently operating below capacity.
• Unusually long drying times.
• Programs consuming more resources than expected.
• Frequent machine stops or fault notifications.
• Declining processing efficiency over time.

Based on this information, technical and laundry teams can adjust programs, maintenance schedules and textile sorting practices using actual operating data rather than relying solely on experience.

9. Optimize the Complete Laundry Flow, Not Individual Machines

Energy efficiency in a hotel laundry should not be considered machine by machine. Washing performance affects drying requirements, while final drying conditions can affect the ironing process.

An efficient laundry flow should therefore be viewed as one complete process:

Sorting → Washing → Extraction → Drying → Ironing → Folding and Finishing

For example, insufficient extraction increases dryer workload. Excessive drying can create less suitable moisture conditions for ironing. Optimizing each stage therefore requires coordination across the entire laundry process.

10. How Much Energy Can Be Saved?

Actual savings depend on many factors, including equipment type, machine age, capacity, textile category, incoming water temperature, washing programs, heating system, maintenance condition and operating practices.

For this reason, a fixed savings percentage should not be applied universally to every hotel.

Instead, hotels can begin by measuring current consumption and identifying specific optimization opportunities:

• Average load per wash cycle.
• Water consumption.
• Heating temperature and heating time.
• Residual moisture after extraction.
• Average drying time.
• Final moisture level after drying.
• Ironing temperature and operating time.
• Energy consumption per shift or per kilogram of processed linen.

With before-and-after operating data, the hotel can identify which programs consume the most energy and measure the actual improvement achieved after optimization.

Conclusion

Optimizing the wash–dry–iron process is not simply a matter of lowering temperature or shortening machine operating time. The real opportunity lies in coordinating load, temperature, extraction speed, moisture level, drying time and ironing conditions according to each textile category.

For 4–5-star hotels, standardized programs and operational data can help improve control over energy costs, processing time and textile wear.

Rather than setting a fixed energy-saving target for every laundry, hotels should begin with an assessment of the current process, identify major consumption points and establish programs that match their existing equipment and linen requirements.

Contact PAN for Consultation

If your business is looking for industrial washing machines or needs advice on selecting equipment suitable for its laundry operation, PAN can support you from equipment selection to industrial laundry solution planning.

Contact PAN for consultation on industrial laundry equipment and solutions.

Contact Information

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