By Timothy Oommen, Owner — Laundini Laundromat | laundinilaundromat.com
This is one of those laundry decisions most people make by habit rather than thought. Whatever the machine was set to last time. Whatever feels right. Whatever someone told them years ago that may or may not have been correct.
The actual answer is simple. Here it is.
Cold Water — Use It Most of the Time
Cold water is the right default for the majority of laundry. Not because it’s the cautious choice, but because it’s genuinely the correct one for most fabrics and most situations.
Darks and colors. Cold water every time, without exception. Hot water opens up fabric fibers and releases dye. That’s how a black shirt becomes a dark gray shirt over six months of washing — not dramatically, not all at once, but gradually and irreversibly. Cold water keeps the dye where it belongs.
Delicates. Silk, lace, thin cotton, anything stretchy, anything with a care label that makes you nervous. Cold water only. Heat and delicate fabric have a relationship that ends in shrinkage, warping, and regret.
Lightly soiled everyday clothes. Your average weekday outfit — worn once, not heavily sweated in, no visible stains — doesn’t need hot water. Cold water cleans it perfectly well and is gentler on the fabric over the long run.
Anything you’re not sure about. When in doubt, cold. You can always rewash something if cold water wasn’t enough. You cannot unshrink a sweater.
Environmental and cost bonus. About 90% of the energy used in a wash cycle goes toward heating the water. Cold water washes use significantly less electricity. If you care about your energy bill or your environmental footprint, cold water is the easy win.
Warm Water — The Underused Middle Ground
Warm water sits between cold and hot and gets ignored by most people who’ve decided the choice is binary. It shouldn’t be ignored.
Synthetic fabrics. Polyester, nylon, rayon, performance blends. These don’t need the aggression of hot water but benefit from a little more than cold. Warm is the right call.
Moderately soiled loads. Not heavily dirty, not lightly worn — something in between. A week’s worth of casual clothes with some real use on them. Warm water gives you more cleaning power than cold without the risk of hot.
Permanent press items. Dress shirts, work clothes, anything that needs to come out without heavy wrinkling. Warm water and a permanent press cycle is the combination that actually works here.
Hot Water — Use It Deliberately, Not by Default
Hot water is powerful. It whitens, disinfects, and lifts deep grime in ways cold water cannot. It is also the fastest way to shrink, fade, and damage clothing that isn’t built for it. Use it with intention.
Whites. Hot water keeps whites white. It oxidizes residue that cold water leaves behind, which is what causes whites to go gray or yellow over time. If you want white things to stay white, hot water is part of the answer.
Heavily soiled items. Work clothes with real grime. Muddy kids’ clothes. Anything that’s been through something. Hot water cuts through the kind of soil that cold water just moves around.
Towels and bedding. These can handle hot water and benefit from the deeper clean it provides. Bacteria and dust mites in bedding respond to heat in a way they don’t respond to cold. Hot water for sheets and towels is worth it.
Commercial and kitchen laundry. Restaurant towels, bar rags, anything that’s been in contact with food grease and needs real disinfection. Hot water is not optional here — it’s part of what makes the clean actually clean. We run hot water on all commercial loads at Laundini, combined with degreaser and bleach where needed.
The Temperatures We Actually Use at Laundini
Every load that comes through our pickup and delivery service gets washed at the temperature that’s right for what’s in it — not whatever the machine happened to be set to last.
Cold for darks, colors, delicates, and anything we’re uncertain about. Warm for synthetics and moderately soiled mixed loads. Hot for whites, heavily soiled items, towels, bedding, and all commercial laundry.
It takes more attention than setting everything the same. We do it anyway because the difference in results — color retention, fabric longevity, actual cleanliness — is real and it compounds over time.
The One-Line Summary
Cold: almost everything, almost always.
Warm: synthetics, moderate soil, permanent press.
Hot: whites, heavily soiled, towels, bedding, commercial.
When in doubt — cold. Always cold.
We handle the temperature decisions so you don’t have to. Book your pickup at laundinilaundromat.com. All of Cook County, $1.50/lb, free delivery, 24-hour turnaround.
Timothy Oommen is the founder and owner of Laundini Laundromat, with locations in Evanston, Bucktown, Skokie, and Wheeling, IL.