What Is Steam in LG Washers and How It Works

Steam in an LG washing machine is a built-in feature that uses hot water vapor to deeply clean and refresh your clothes, reduce wrinkles, and help remove allergens and odors without harsh chemicals. Think of it as an extra cleaning boost that goes beyond regular washing, using steam to penetrate fabric fibers more effectively than water alone. You can activate it through specific wash cycles on your machine, like the Steam Sanitize or Allergiene cycles.

We found that this feature is especially helpful for people with sensitive skin, allergies, or busy schedules who want a deeper clean on items like bedding, towels, and delicate clothing. The steam works in two main ways: either during the wash cycle to sanitize and break down stubborn stains, or in a dedicated steam-only cycle to quickly refresh clothes that aren’t dirty enough for a full wash. It’s a smart, convenient way to tackle laundry challenges you face every week.

• What it does: Uses steam to remove wrinkles, odors, and allergens from fabric.
• How it works: The washer heats water into steam that penetrates deep into the fibers of your clothes.
• Key cycles: Look for Steam Sanitize, Allergiene, or Steam Refresh options on your LG washer.
• Main benefits: Better stain removal, less ironing, and a gentler clean for sensitive skin.
• Extra perk: A steam-only cycle can refresh worn-once items in about 20 minutes.

Now that you know the basics, let’s walk through exactly how the steam feature works, which cycles to use for different fabrics, and the best ways to get the most out of your LG washer. We’ll keep it simple and practical so you can start using this feature with confidence today.

How Steam Works in Your LG Washing Machine

Steam in an LG washer is not magic, but it might feel that way. The machine heats water to a high temperature inside a sealed chamber. That hot water turns into vapor, which is then released into the drum with your clothes.

This vapor is much finer than the water in a standard rinse. Because the steam particles are so small, they penetrate fabric fibers more easily. Regular water sits on the surface. Steam gets inside the thread and pushes out dirt, odors, and wrinkles from the core of the material.

Many experts point to steam as a powerful tool for home hygiene. The high heat involved is similar to what hospitals use to sanitize linens. Your LG washer brings a version of that same technology right into your laundry room.

The Two Ways Steam Works During a Cycle

Your LG washer uses steam in two distinct ways. Knowing the difference helps you pick the right cycle every time.

First, steam can be injected during the wash phase. This happens alongside your detergent. The hot vapor helps activate the detergent faster and breaks down tough, set-in stains. Think of it as a pre-treatment that happens automatically while the drum turns.

Second, steam can be used in a dedicated refresh cycle. This is a shorter program that uses steam without any detergent or spinning. It is designed for clothes that are not dirty, just a little stale. A quick steam session can remove odors from a jacket you wore to a smoky restaurant or de-wrinkle a shirt that sat in the dryer too long.

Why Steam Beats Hot Water Alone

Hot water alone can damage some fabrics and still miss deep-set dirt. Steam is gentler because it does not soak the fabric the same way. The vapor relaxes the fibers without breaking them down.

We found that steam also uses less water than a traditional heavy-duty cycle. That means you get a deeper clean while being a bit kinder to your utility bill.

Steam Cycles You Should Know About

LG includes several steam-based cycles on their washers. Each one serves a different purpose. You do not need to use all of them, but knowing what they do makes laundry easier.

Look for these names on your dial or in the LG ThinQ app. If you do not see one, check your manual. Some models label them differently.

Steam Sanitize Cycle

This is the heavy hitter for hygiene. The washer heats water to a very high temperature and uses steam to kill 99.9% of bacteria and dust mites. This cycle is ideal for bedding, towels, baby clothes, and gym wear.

The cycle takes a bit longer because the water needs time to heat up. The trade-off is worth it when you want peace of mind about germs. Many pediatricians recommend this type of cleaning for children with allergies (Mayo Clinic).

Allergiene Cycle

This cycle is similar to Steam Sanitize but focuses specifically on allergens. It uses steam to remove common triggers like pet dander, pollen, and dust mite waste from your laundry.

If you wake up stuffy every morning, your pillows and sheets might be the culprit. Running them through the Allergiene cycle once a week can make a real difference. We found that this is one of the most appreciated features for households with allergy sufferers.

Steam Refresh Cycle

This is your quick fix for clothes that are not dirty. Maybe you wore a blouse for two hours or pulled a sweater out of storage that smells like mothballs. The Steam Refresh cycle uses steam to eliminate odors and reduce wrinkles in about 20 minutes.

It is not a wash. It will not remove stains or clean dirt. But it is perfect for refreshing garments between washes, which can extend the life of your favorite clothes.

Fabrics That Love Steam (and One That Does Not)

Steam is versatile, but it is not for everything. You should always check the care tag on your clothing first. Here is a quick guide based on research from textile experts.

Fabric Type	Steam Friendly?	Why It Works
Cotton	Yes	Handles high heat well, great for sanitizing sheets and towels
Polyester	Yes	Steam relaxes wrinkles without melting the fibers
Silk	Caution	Use the delicate steam setting only, avoid high heat
Wool	No	Steam can cause shrinkage and felting
Denim	Yes	Steam refreshes without breaking down the stiff fabric

For wool items, stick to a cold water delicate cycle. Steam is too aggressive for animal fibers. For everything else, check the tag and start with the gentlest steam option.

Delicates and Steam

Your machine likely has a steam setting for delicates. This uses lower heat and less pressure. It is safe for silk blouses, lace, and other fine fabrics.

We found that using steam on delicates actually reduces the need for ironing. The vapor relaxes the fibers, so wrinkles fall out naturally without heavy heat from an iron.

How to Get the Most Out of Steam

Using steam is easy, but a few tips can make the results even better. Here is what we learned from testing and researching LG washers with steam functionality.

• Do not overload the drum. Steam needs room to circulate. Leave at least a third of the drum empty.
• Use the right detergent. High-efficiency (HE) detergent works best with steam cycles.
• Sort by fabric weight. Do not mix heavy towels with light shirts in a steam cycle.
• Clean your washer monthly. Run the tub clean cycle to prevent buildup that blocks steam vents.
• Close the door between loads. This keeps the drum dry and prevents mildew that can cause musty smells.

Common Mistakes to Avoid

The biggest mistake we see is using the Steam Sanitize cycle for every load. That cycle uses a lot of energy. Save it for items that really need deep cleaning, like bedding or kids’ clothes after a stomach bug.

Another mistake is adding steam to a cycle that is already full. If the drum is packed tight, the steam cannot reach all the fabric. You will end up with partially refreshed clothes and wasted energy.

Is Steam Worth the Extra Cost?

Steam models cost a bit more upfront than standard washers. But we found that the benefits often outweigh the price difference for many households. For a full breakdown of what you might pay, see our new washing machine cost guide.

Consider what you spend on dry cleaning for dress shirts. Steam can refresh those shirts at home. Consider the cost of allergy medication. Steam can remove the triggers from your bedding. Over a few years, the machine can pay for itself.

Energy and Water Usage

Steam cycles do use more electricity than cold washes because they heat water. However, they use less water overall than a traditional hot water wash. The steam does the work that gallons of water used to do.

If you are worried about energy bills, use the Steam Refresh cycle instead of a full wash. It is quick and efficient for lightly worn clothes.

How Steam Helps Sensitive Skin

If you or someone in your home has eczema or sensitive skin, steam can be a game changer. The high heat of the Steam Sanitize cycle removes detergent residue and fabric softener buildup that can irritate skin.

We found that running a steam cycle with no detergent on new clothes helps remove the chemical finishes that factories apply to fabrics. This is a smart step before wearing new pajamas or undergarments.

Many dermatologists suggest washing new clothes before wearing them to reduce skin irritation. Steam takes that advice one step further by thoroughly rinsing and sanitizing the fibers.

Steam and Odor Removal

Steam is excellent at neutralizing odors, not just covering them up. The high heat breaks down the volatile compounds that cause smells. This works for sweat, smoke, and even cooking odors trapped in fabric.

Try the Steam Refresh cycle on a jacket that smells like last night’s dinner. You will notice the difference immediately when you pull it out of the drum.

Getting Started with Your First Steam Load

Ready to try it? Start with something simple like your bath towels. Place them loosely in the drum, select the Steam Sanitize cycle, and add your usual HE detergent. Press start and let the machine do the work.

When the cycle finishes, you will notice towels that feel fluffier and smell fresher. That is the steam doing its job.

Checklist for Perfect Steam Laundry

• Check the care tag on every item before adding steam.
• Load the drum loosely with room for steam to circulate.
• Select the right cycle for the fabric type.
• Use HE detergent only for wash cycles.
• Remove clothes promptly after the cycle ends to prevent wrinkles.
• Run a tub clean cycle once a month to keep steam vents clear.

That is everything you need to know to start using steam in your LG washer with confidence. The feature is easy to use once you understand how it works and which cycle fits your laundry needs. If you’re still choosing a machine, our guide to top-rated top-loading washers can help.

Conclusion

Steam in your LG washing machine is a practical tool that goes far beyond a standard wash. It penetrates fabric deeply to remove allergens, odors, and wrinkles while being gentler on your clothes than hot water alone. You have the power to sanitize bedding, refresh worn-once outfits, and reduce your reliance on dry cleaning.

Start small. Pick one load this week, like your bath towels or a few dress shirts. Run the Steam Sanitize or Steam Refresh cycle and see the difference for yourself. Once you get the hang of it, you will wonder how you ever did laundry without it.

Frequently Asked Questions

Can I add steam to any wash cycle on my LG washer?

No, you cannot add steam to every cycle. Steam is built into specific cycles like Steam Sanitize, Allergiene, and Steam Refresh. Check your machine’s control panel or the LG ThinQ app to see which cycles support steam on your model.

Does steam in an LG washer shrink clothes?

Steam can shrink natural fibers like wool and some cottons if the heat is too high. You should always check the care tag first. For delicate items, use the lower-heat steam setting and avoid steaming wool entirely.

Is steam washing safe for baby clothes?

Yes, steam is actually excellent for baby clothes. The Steam Sanitize cycle kills 99.9% of bacteria and dust mites without harsh chemicals. It also helps remove the factory finishes on new garments, which is great for sensitive newborn skin.

How long does a steam cycle take on an LG washer?

It depends on the cycle you choose. The Steam Refresh cycle takes about 20 minutes. The Steam Sanitize and Allergiene cycles take longer, usually between 60 and 90 minutes, because the washer needs time to heat the water into steam.

Do I still need to use detergent with steam cycles?

Yes, you use detergent for wash cycles like Steam Sanitize and Allergiene. But the Steam Refresh cycle does not use any detergent. It only uses steam to remove odors and wrinkles, so it is safe for clothes that just need a quick freshen-up.