Can bed bugs survive in the washing machine?

[KatherineDella]

Bed bugs can survive a standard washing machine cycle. Reliable elimination requires sustained high heat, which is best achieved by drying items on a high-heat setting for a minimum of 30 minutes. Washing, even with detergent, primarily removes and drowns some bugs but is inconsistent for killing all life stages. The mechanical action and water temperature in most household washers are insufficient to guarantee eradication. The definitive solution is thermal death via your clothes dryer.

The critical weakness of bed bugs is their susceptibility to high temperatures. Research from institutions like Rutgers University confirms that exposure to 118°F (48°C) for 90 minutes is lethal, while temperatures at or above 122°F (50°C) kill bed bugs and their eggs in minutes. Most household dryers on a high-heat setting can exceed these thresholds, making them the cornerstone of laundry-based treatment.

Why the Washing Machine Falls Short A regular wash cycle with cold or warm water (typically below 120°F/49°C) does not reach the lethal temperature zone. Bed bugs are adept at trapping air around their bodies, which can allow them to float and survive submersion. Agitation and detergents may dislodge and kill a portion of the population, but eggs—which are cemented to fabric fibers—are particularly resilient. Relying solely on the washer leaves a significant risk of survival and re-infestation.

The Dryer Method: Protocol for Certainty The clothes dryer is your most effective weapon. For complete eradication, follow this validated protocol:

1. Sort and Bag: Place infested linens and clothing directly into sealed plastic bags for transport to the laundry area. Discard or destroy the bags immediately after emptying.
2. Dry First, Optional Wash: For dry-clean-safe items, you can place them directly into the dryer. The high heat will kill all stages. Washing beforehand is not mandatory for pest control.
3. Apply High Heat: Run the dryer on the highest heat setting the fabrics can tolerate. The minimum effective time is 30 minutes on high heat after the load is fully dry to the touch. For larger loads, heavy items like blankets, or confirmed heavy infestations, extend the drying time to 90 minutes to ensure heat penetrates every layer.
4. Secure Clean Items: Remove dried items immediately and place them directly into new, clean bags or containers. Do not leave them in baskets or on laundry room surfaces where stray bugs could contaminate them.

Comparative Effectiveness: Washer vs. Dryer

Method	Typical Temperature	Exposure Time	Efficacy Against Bugs	Efficacy Against Eggs
Standard Washer (Warm/Cold)	< 120°F (49°C)	30-60 min	Low to Moderate	Very Low
Washer (Very Hot Water)	≥ 120°F (49°C)	30+ min	High	High
Dryer (High Heat Setting)	120°F - 135°F+ (49°C - 57°C+)	30-90 min	Very High	Very High

Integrated Laundry Strategy Treating laundry is only one part of a comprehensive bed bug management plan, which should include professional-grade encasements for mattresses, thorough vacuuming, and possibly professional pesticide application. Always handle infested materials carefully to prevent spreading bugs to new areas. The key takeaway is that while the washing machine plays a supporting hygiene role, the dryer's high heat is the non-negotiable, lethal element for decontaminating fabrics.

[DeEmersyn]

I learned this the hard way after a hotel trip. I washed everything in hot water, thinking I was safe. A few weeks later, we saw bites. The exterminator asked about our laundry routine and pointed out the flaw: I used a "hot" wash, but my machine’s "hot" is only about 110 degrees. That’s not hot enough. He said eggs are like little glue dots stuck to seams and can survive. His rule was simple: "If it can't take 30 minutes on high in the dryer, don't bring it back in the house." Now, suitcases go straight to the garage, and clothes get a long, hot dryer session before anything else. The washer is for cleaning; the dryer is for killing.

[VanSimon]

In my five years as a pest control technician, I've never recommended a washing machine as a primary kill method. The variable is heat, and dryers provide a controlled, measurable environment. My company's guidance, based on entomology lab data, is to target a core item temperature of 120°F. In practice, that means running a residential dryer on high for a full cycle—often 40 to 60 minutes for a normal load. For dense items like pillows or folded blankets, you must run it longer, up to 90 minutes, to ensure the heat saturates the entire mass. The washer's role is logistical: it helps remove bugs from fabrics. But for guaranteed mortality, the dryer is the only appliance we fully trust. We tell clients to think of the dryer as a treatment chamber, not just a drying tool.

[McAllison]

Here’s my straightforward drill for any suspect clothing or bedding:

1. Bag it tightly right where you found it.
2. Carry the bag to the dryer.
3. Dump the contents in (skip the washer entirely).
4. Run on high heat for 45 minutes.
5. Take the clean, hot items out and seal them in a clean bag.

This works because the dryer’s heat is constant and penetrates. Washing first just wastes time and can lower the item's temperature before it even reaches the dryer. The plastic bags are crucial—they trap any bugs trying to escape during transport. This method saves water, time, and gives you peace of mind.

[LaIvan]

As a property manager for multiple apartment buildings, bed bug protocols are a serious part of our lease agreements. We provide tenants with a specific laundry guideline to prevent spreading infestations between units. The central instruction is about the dryer, not the washer. We state that all fabric items from an affected room must undergo a minimum 30-minute cycle on the highest heat setting appropriate for the material. We clarify that washing in hot water may help but does not fulfill the treatment requirement. Tenants must use sealed plastic bags for transport and are advised to use laundry facilities outside their unit during treatment. This clear, dryer-focused directive eliminates confusion and ensures all residents follow the same, scientifically-backed standard, which is critical for building-wide control. The washer is considered a personal choice for cleanliness; the dryer cycle is the mandated disinfection step.