How does dry cleaning work?
Dry cleaning uses a liquid chemical solvent — not water — to clean clothes and delicate fabrics. Garments are tumbled in a sealed machine where the solvent dissolves oil-based stains, then the solvent is filtered, recovered, and recycled for the next load. In Los Angeles, modern dry cleaners increasingly use alternatives to the traditional petroleum-based "perc" solvent because of California's air quality rules and a general shift toward gentler cleaning chemistry.
Below, we walk through the full process step by step, explain which solvents different dry cleaners use (and why it matters for your clothes), and cover how to choose a dry cleaner in LA — including what questions to ask before you hand over your wardrobe.
The 6-Step Dry Cleaning Process
Dry cleaning isn't one machine doing one thing — it's a six-step sequence, and how carefully each step is handled is what separates a good cleaner from a forgettable one. Here's how OrangeBag runs every order through our Los Angeles facility.
Step 1: Tagging
Every garment is tagged the moment it arrives. Tags travel with the garment through every stage, which is how we make sure your shirts come back as your shirts — not somebody else's — and nothing gets misplaced between the pickup driver and the delivery run.
Step 2: Inspection
Before anything goes near a solvent, every piece is checked by hand. We pull items out of pockets (pens, receipts, loose change — all the usual), flag any rips, missing buttons, or weak seams, and note anything that needs extra care. Whatever we find in your pockets is bagged and returned to you at delivery.
Step 3: Stain Pre-Spotting and Treatment
Stains are identified and treated before the garment goes into the dry cleaning machine. Different stains need different treatments — oil-based stains respond to solvent, protein stains often need heat or steam, and some need a targeted pre-treatment agent. Telling your pickup driver about a tough stain before the bag leaves your door helps us give it the right treatment the first time.
Step 4: The Dry Cleaning Cycle
Garments are sorted by color and fabric type, then loaded into the dry cleaning machine. Unlike a home washer, there's no water — the drum is filled partway with solvent, which rotates with the garments and lifts stains and soil away from the fibers. The solvent is drained, the garments are rinsed with fresh solvent, and then they're tumbled dry at a temperature calibrated to the fabric.
Most traditional dry cleaners use perchloroethylene, commonly called "perc." OrangeBag uses a sand-based liquid silicone solvent instead. Siloxane is non-flammable, doesn't carry perc's air-pollution profile, and is gentler on delicate fabrics — a set of trade-offs that fits a pickup-and-delivery model well. We'll break down the solvent landscape in more detail below so you know exactly what each option does.
Step 5: Post-Spotting
After the main cycle, every garment is re-inspected. Most oil-based and soil-based stains are gone at this point, but stubborn ones — ink, some food stains, certain cosmetics — sometimes need a second pass with steam, spot treatment, or targeted wet cleaning. This is the step where a careful cleaner earns their keep.
Step 6: Finishing and Packaging
Finally, garments are pressed, given a last inspection, and packaged for delivery. Pressing matters more than most people realize — a well-pressed shirt can last several more wears before it needs cleaning again, so good finishing pays off long after you've picked the clothes up.
What Solvent Does Dry Cleaning Use?
"Dry cleaning" is a category, not a single chemistry. The solvent a cleaner uses affects what clothes come back feeling like, what kind of smell (or lack of it) lingers, and what the environmental footprint of the cleaning process looks like. Here are the main options.
Perchloroethylene (perc): The historical standard. Perc is a strong degreaser, has been used in the industry since the 1930s, and still accounts for the majority of US dry cleaning operations. It's also classified by the International Agency for Research on Cancer as "probably carcinogenic to humans" (Group 2A), and California has been phasing it out for years. Many older cleaners still use perc machines because replacement equipment is expensive.
Hydrocarbon solvents (DF-2000, EcoSolv, Pure Dry): Petroleum-based solvents that are less aggressive than perc and have a lower toxicity profile. They're considered volatile organic compounds (VOCs), so they have their own air-quality trade-offs. Cleaning cycles with hydrocarbon solvents run longer than perc cycles.
Liquid silicone (siloxane, D5, GreenEarth): A sand-derived solvent that's non-flammable, gentler on delicate fabrics, and doesn't produce perc's characteristic chemical odor. This is what OrangeBag uses. It's a better fit than perc for a lot of residential wardrobes and delicate items, though like every solvent it has its own regulatory and environmental context — no dry cleaning solvent is perfect, and it's worth understanding the trade-offs.
Liquid CO2: A newer, lower-footprint option that uses pressurized carbon dioxide as the solvent. The equipment is expensive, so adoption has been slow, but it's an emerging alternative for cleaners focused on minimizing environmental impact.
If you want to know what your dry cleaner uses, just ask. A good one will tell you.
Is Dry Cleaning Safe for My Clothes?
For most garments labeled "dry clean only," yes — dry cleaning is specifically designed to clean fabrics that water would damage. The solvents used in dry cleaning don't swell natural fibers the way water does, which is why silks, wools, structured jackets, and lined garments come out looking pressed and crisp rather than shrunken or misshapen.
Where to be careful: garments with specialty trims (beading, sequins, leather patches), heavily embroidered pieces, and anything labeled "do not dry clean" on the care tag. The GINETEX care symbol for "do not dry clean" is a crossed-out empty circle — worth knowing how to spot.
Common fabrics that benefit from dry cleaning rather than home washing: silk, wool, cashmere, acetate, rayon, linen (if structured), and most lined garments.
Fabrics that usually don't need dry cleaning: cotton, polyester, most synthetics — these are fine in a regular home washing machine. If you want those professionally laundered anyway, a wash and fold service is often a better fit than dry cleaning.
Is Dry Cleaning Safe for the Environment?
This question is more honest than most industry pages are willing to answer. The short version: every dry cleaning solvent involves environmental trade-offs, and the industry has been moving away from the worst ones for a few decades.
Perc, the legacy standard, has real air and water pollution concerns, which is why California, France, and several other jurisdictions have been phasing it out. Hydrocarbon solvents reduce those concerns but introduce VOC emissions. Liquid silicone, the solvent OrangeBag uses, avoids both the perc and the VOC profile but has its own regulatory context internationally. Liquid CO2 has the lowest footprint but is the least available.
The best environmental move in dry cleaning is usually the most boring one: cleaning less. Dry clean garments only when they need it, not on a schedule — over-cleaning wears fabric out faster and uses solvent for no reason. Brushing coats, spot-treating small stains, and airing out suits between wears extends the useful life of your wardrobe and reduces the cleaning footprint.
If you care about the environmental profile of your cleaner, ask two questions: what solvent they use, and how they recover and recycle it. Modern machines recover well over 90% of the solvent per cycle — the closed-loop recovery is often a bigger environmental factor than the solvent type itself.
How to Choose a Dry Cleaner in Los Angeles
A few questions worth asking before you settle on a dry cleaner in LA:
What solvent do you use? Perc, hydrocarbon, siloxane, and CO2 are the main options. Any answer is fine — but the willingness to answer is the real signal.
What's your turnaround time? 2–3 days is standard for most cleaners; longer for specialty items like wedding gowns or leather.
Do you offer pickup and delivery? If you're in LA traffic, this matters more than the price difference. Home pickup saves two round trips to a storefront per cleaning cycle.
How do you handle stains? A cleaner who immediately answers "it depends on the stain" is more careful than one who says "we get everything out." The honest answer is the right one.
What happens if something goes wrong? Ask about their damage and loss policy up front, not after.
OrangeBag offers scheduled pickup and delivery across Los Angeles for both dry cleaning and wash + fold, with per-garment pricing, real turnaround, and no storefront runs required. If you do a lot of dry cleaning every month, our monthly subscriptions can make the economics work out better than per-order.
Frequently Asked Questions
Does dry cleaning actually use water? No — dry cleaning is called "dry" because the solvent used is not water. Garments do get wet during the process, but they're wet with a non-water-based liquid solvent that doesn't swell or distort natural fibers the way water does.
Is perc safe to use on my clothes? Perc does an effective job cleaning clothes, but it's classified by the International Agency for Research on Cancer as "probably carcinogenic to humans" (Group 2A), and it's being phased out in California and other jurisdictions. Most cleaners that still use perc do so because the replacement equipment is expensive — not because it's the best option.
How long does dry cleaning take? The cleaning cycle itself takes 30–60 minutes, but full turnaround from drop-off to pickup is typically 2–3 days for standard items. Specialty pieces like wedding gowns or leather can take longer. OrangeBag's pickup-and-delivery schedule is generally 2–3 days depending on location in LA.
Can dry cleaning damage or shrink clothes? Not under normal conditions. Dry cleaning solvents don't swell natural fibers the way water does, so shrinkage is rare. Damage usually comes from mishandled stain treatment or heat — which is why careful inspection and pre-spotting matter more than the machine cycle itself.
Does OrangeBag offer pickup and delivery in Los Angeles? Yes — OrangeBag is a pickup-and-delivery service covering Los Angeles. We pick up from your home or office on a scheduled route, handle cleaning in our facility, and deliver back on the same schedule. See our dry cleaning service page for pricing and coverage details.