Quick Answer: Yes, one can microwave a towel — with three caveats: it must be wet, it must be cotton and the time must be short.
Microwaving a towel that’s dry is dangerous in terms of causing a fire. A synthetic towel (polyester/nylon) could be melted into a plastic burn on a move. For safest use, saturate a 100% cotton towel with water and wring out until damp then heat for 30-60 seconds depending on your microwave’s wattage.
For the Home Spa & Grooming Enthusiast
Objective: To duplicate the “Barber Shop” hot towel for shaving or to jump start your face either first thing in the morning of before bed.
The Counter-Intuitive Truth:
The vast majority of people CMHC polled overheat the towel and think “hotter is better.” It does you no good, then, to have a towel that has been heated into the boiling range (212 degrees), since you will need to cool it off before wiping at your face and thus waving away all of its moisture. The key is not high heat; it’s holding on to moisture.
The Procedure:
- Material Check: Check the tag. Whip with 100% Cotton (i.e. washcloth or hand towel) only. It doesn’t stay wet, and when moist, it cools instantly.
- The Saturation Method: Moisten towel with hot tap water. Wring it out but err on the side of making it slightly wetter than you think acceptable. If you squeeze it and no water drips out, it’s too dry.”
- The Rolling Method: Instead of folding towel flat, roll into a cylinder. This results in a dense core capturing steam.
- Time: 30 to 45 seconds in the microwave on High.
- Safety Important First Step: Do Not apply to skin. Unfurl the towel, and test the inside of the cloth on your inner wrist.
Warning on Aromatherapy:
If you’d like a scented towel (eucalyptus/lavender), add your essential oil once it’s been heated. Essential oils are volatile compounds. Microwaving notebooks and loose papers, meanwhile, can change their chemical composition or in rare cases with dry spots lead to flashpoint ignition.
For Pain Relief Seekers
Goal: Making a heat pack for cramps, a stiff neck or muscle spasm that gives off moist heat.
The Challenge:
A plain wet towel loses its cool after approximately 2 minutes, and for anything with medication/ therapeutics added to it, that amount of time is a bit too short to provide relief (typically the therapeutic effects will not occur until 20-30 minutes)
The “Insulated Steam” Solution:
The key to success here is trapping the physics of the steam so it does not boot out into the room.
- Prepare the Core: Soak two hand towels and wring them out well.
- The Ziploc Hack: Put wet wipe rags in a microwave-safe Ziploc. You can leave the bag open an inch so that if there’s too much pressure inside, it’s able to escape without a explosion.
- Heat: Microwave 90 seconds to 2 minutes.
- To insulate: Take the bag off (gently, it will be scalding). Encase the hot plastic bag in a dry, thin pillowcase, or a dry towel.
- Application: Apply the bundle to painful site.
Why this works: The damp towels in the bag release steam that can’t go anywhere. Its dry outer layer ensures that it will not burn your skin and increases the heat retention time from 2 minutes to approximately 15-20 minutes.
For The Hygiene-Conscious
Goal: Hydrogen peroxide, as a kitchen rag or sponge, to rid of bacteria.
The Critical Reality Check:
Just making a rag “hot” does not sanitize it. You have to achieve a certain temperature for a certain amount of time in order to kill pathogens. A quick 30-second zap could in fact incubate bacteria by turning a cool, dry vessel into a warm, damp chamber instead of killing them.
The “Steam Sterilization” Protocol:
- Pre-Clean: Forget about nuking a rag full of grease or oil. Oil temperature rises much more quickly than water and can catch fire. Begin by washing the visible debris away with soap.
- Completely Soaked: It should be a soaking rag. You’re counting on the germs being killed by the boiling water molecules.
- The 2-Minute Rule: Environmental engineering studies find that two minutes of microwaving at full power will kill or inactivate more than 99 percent of all the living pathogens in food, including a wide range of bacteria, viruses and parasites.
- The Cool Down: Don’t mess with it just yet. The water inside is boiling. Leave for 5 minutes to sit in the microwave and then take out.
For Parents & Caregivers
Goal: Warm wet-wipes for babies or patients to eliminate the shocking feeling of cold cloth.
The Risk Analysis:
Microwaves heat unevenly. This results in “hot spots” — small areas of superheated water next to lukewarm ones. This is an annoyance for an adult; for an infant’s delicate skin, it’s instantaneous second-degree burns.
The “Indirect Heat” Method (Recommended):
Do not microwave the towel or place wipe directly on you.
- Heat the Water: Pour water into a microwave-safe bowl and heat it for 1 minute.
- Try the Water: Stick your finger in. Not tea, you understand: It should feel like warm bathwater.
- Dip and Wring: Dip the cloth in the warm water and wring it out.
If you do have to nuke the towel directly:
- Set the power to low (50%).
- Heat for only 10-15 seconds.
- Shake it out: After peeling off the towel, vigorously shake it in air 5 times. This spreads the heat and gets rid of those dangerous “hot spots” before the fabric even comes into contact with skin.
Frequently Asked Questions
What kind of towel can I microwave and under what conditions?
You need to use a fully cotton towel which is soaked completely. Microwaving synthetic fibers (like polyester, which is often used in bath towels) can cause melting, and microwaving a dry towel creates a major fire hazard.
How long to microwave a towel for hot shave or facial steam?
To make a “barber shop” style towel, wet a rolled cotton towel and microwave on High for 30 to 45 seconds. Always be sure to test the temperature on your inner wrist before you spread it across your face.
How can I get a hot towel to keep the heat more, to alleviate muscle pain?
For up to 20 more minutes add some wet towels to a microwave safe Ziploc bag (leave it open about an inch), nuke for 90 seconds – 2 minutes, place the hot sack in a dry pillow case or towel and voila!
Can I add essential oils to the towel before placing in microwave?
No, you should use essential oils after a towel has been heated. Avoid microwaving volatile oils which could alter its chemical composition or even combust under rare circumstances.
Can bacteria be effectively killed by microwaving a kitchen rag?
Sure, but it has to be the right way. The rag needs to be soaked, greaselike free, and then microwaved for a minimum of 2 minutes at full power to get rid of 99% pathenogenic such as e.coli! A duration that is too short may result only in incubation of the bacteria.
References
Study on Sterilizing by Microwave:
| Institution: | University of Florida (Department of Environmental Engineering Sciences). |
| Researchers: | Gabriel Bitton, D.K. Baney et al. |
| Date: | 2007. |
| Outcome: | The research concluded microwaving the sponges/cloths for 2 min on full power (power output > or = 700 W) killed more than 99% of all living pathogens such as E. coli and salmonella. Bacillus cereus spores were killed in 4 minutes. |
| Data Support: | The research said that the water content is what matters;the steam from it is what kills germs, not radiation. |
Fabric Ignition Data:
| Body: | National Fire Protection Association (NFPA). |
| Context: | Home Cooking Fires Report. |
| Relevance: | Although wide-ranging, NFPA figures consistently show “unattended equipment” and “combustibles too near to heat source” as top culprits of kitchen fires. When it comes to microwaves, dry cotton (cellulose) catches fire around 400°F (204°C), and you can quickly get there when water is unnatural as a massive, temperature-cap at 212°F/100°C. |
