Guide

What Does Steam Do in a Washing Machine?

Updated on · By the Laundry Harbor team

Steam in a washer adds heat and moisture during a wash or a separate steam phase. The exact purpose depends on the machine and cycle, so check the manual for what its steam option is designed to do.

On this page (7 sections)
  1. What does steam do in a washer cycle?
  2. What is the steam option on a washing machine?
  3. When might a steam wash be useful?
  4. How should you choose a steam setting?
  5. What should you check before using steam?
  6. Which washer accessories relate to steam use?
  7. What does steam do in a washer, in practical terms?

Steam in a washer adds heat and moisture during a wash or a separate steam phase. What it does depends on the washer: a steam option may be designed to help loosen soil or reduce wrinkles, but it doesn't guarantee either result for every load.

A steam washer still relies on the cycle, detergent, load size, and fabric care instructions. Check the manual before choosing steam, because machines can use it at different points and for different purposes.

For a brand-specific walkthrough, see how to use a Whirlpool washing machine.

What does steam do in a washer cycle?

Steam adds heat and moisture to a cycle, but the washer manual defines the intended effect. Some machines use steam during washing, while others offer a separate steam treatment or add it to selected cycles.

Steam may help loosen soil or relax wrinkles when the washer's supported cycle is designed for that purpose. It doesn't replace detergent, correct overloading, or make every fabric suitable for a hot cycle.

For a broader explanation of cycle names and settings, read Washing Machine Cycles and Settings: A Simple Guide. The cycle label and manual are more useful than assuming all steam options work the same way.

What is the steam option on a washing machine?

The steam option is a model-specific setting that uses steam as part of a supported cycle. It may be a separate choice or appear as an added option alongside a cycle, depending on the washer's controls.

Look for the cycle description in the manual or on the control panel. It should explain whether steam is intended for particular fabrics, soil levels, or wrinkle concerns, and whether it changes the cycle time.

Don't assume that a button labeled “Steam” means the washer can steam any load on its own. Choose only combinations the manual supports, and use the garment's care label to guide fabric choices.

Does steam mean the washer cleans with steam alone?

No, steam does not mean detergent and washing action are unnecessary. Follow the regular detergent directions for the load and use the supported cycle as described by the washer maker.

Steam is one part of a washer's operation. It isn't a substitute for sorting laundry, measuring detergent, or using a cycle suited to the load.

When might a steam wash be useful?

A steam cycle may be useful when its manual says it supports the concern you're trying to address, such as loosening soil or reducing wrinkles. Treat those as possible benefits of a particular cycle, not guaranteed results.

Read the cycle notes before using it on a load. If the goal is to freshen a garment or remove wrinkles without a full wash, a separate garment steamer may be a better fit; see our steam iron and steamer guide.

For bulky bedding, use the cycle made for the load and follow the washer's capacity guidance. Learn what a bulky or bedding cycle changes in a washer before combining that cycle with any steam option.

Can steam help with wrinkles?

It may help relax wrinkles if your washer's supported cycle is designed for that purpose. Remove clothes promptly when the cycle ends, since letting damp laundry sit can leave creases.

A steam setting isn't a replacement for an iron when a garment needs a crisp finish. Check the care label before applying heat, and choose a dedicated ironing method when the fabric allows it.

Is hygiene steam the same as every steam cycle?

No, “hygiene steam” describes a specific washer feature or cycle, not every use of steam. The name alone doesn't tell you the settings, temperatures, or results, so read the model's cycle details.

Our guide explains what hygiene steam in a washing machine means. Don't treat the term as a promise to sanitize every item or remove every allergen.

How should you choose a steam setting?

Choose steam only when the manual supports it for the cycle and the garments in the load. Check the fabric labels, select the appropriate cycle, and use detergent as directed.

A simple decision process can help:

  1. Read the garment care labels and separate items that need different care.
  2. Check the washer manual for the purpose and limits of its steam option.
  3. Select a supported cycle that fits the load's fabric and soil.
  4. Use the recommended detergent amount and load size.
  5. Remove laundry when the cycle finishes and follow the garment's drying instructions.

If you're using a specific model, the controls and cycle names matter. See how to use a Maytag washing machine or how to use a Miele washing machine for model-focused guidance.

What should you check before using steam?

Check the washer manual, the fabric care labels, and the selected cycle before starting. Those details tell you whether steam is supported and whether the load can handle the heat and moisture.

Don't assume a delicate item is safe just because it can be washed. Choose a non-steam cycle when the care label or manual calls for lower heat or gentler handling.

A steam option also won't correct a load that's packed too tightly or unevenly. Leave room for clothes to move, and read how to load a washing machine without overloading it.

If the washer shakes, stop and redistribute the load according to the manual. A single heavy item can throw off a load, as explained in why one heavy item can unbalance a washing machine.

Which washer accessories relate to steam use?

Steam doesn't require a special accessory, but sound washer connections and a stable setup matter for regular use. These parts address installation, repair, or leak protection rather than changing what the steam cycle does.

The Eastman set includes one blue cold-water hose and one red hot-water hose. Check the connection type and your washer's installation instructions before replacing supply lines.

This is a washer repair part, not a steam accessory. Confirm your exact model before choosing a replacement, and follow the owner's manual for installation.

The Camco pan measures 31 x 35 in at the outside and includes a PVC drain fitting. Check the space under and around your washer before selecting a pan.

What does steam do in a washer, in practical terms?

Steam adds a heat-and-moisture option whose purpose varies by washer and cycle. Use it when the manual supports it for your load, and choose a regular cycle when steam doesn't match the fabric or laundry need.

For wrinkles, follow the washer's instructions and remove clothes promptly; for a pressed finish, use an iron or steamer suited to the garment. For special cycle names, check the model guide and use the care label to make the final choice.

The best rule is simple: follow the washer manual and fabric label first. That tells you when the steam option on a washing machine fits the load and when another cycle is the better choice.

Frequently asked questions

What does steam do in a washer?

A steam washer adds heat and moisture during a wash or a separate steam phase. Depending on the model and cycle, steam may help loosen soil or reduce wrinkles, but the results and intended use vary.

Check your washer manual for cycle details and fabric guidance.

Is a steam washing machine better than a regular washer?

A steam washing machine gives you an extra function, but that doesn't make it better for every load. A regular cycle may be enough for everyday laundry, while a supported steam option may suit a particular soil or wrinkle concern.

Compare the cycle list with how you wash.

Does the steam option replace detergent?

No. Use the detergent and amount recommended for the load and washer, even when a cycle includes steam.

Steam is a washer function, not a detergent; check the manual for where it occurs in the cycle and whether any special instructions apply.

Can you use steam on every fabric?

No. Fabric care labels and the washer's manual determine whether a garment can go through a cycle that uses steam.

Heat and moisture can affect delicate or heat-sensitive items, so choose a suitable non-steam cycle when care instructions call for one.