Altitude helps a wash and fold load in one way and quietly hurts it in another. Thin air and very dry air both make water leave a surface more readily, so shirts dry fast enough to feel like a trick. Thick items do not follow, and the gap between those two facts is where most drying damage happens.
What altitude changes about drying
Two things are different up here, and together they explain why a wash and fold load dries on a different curve than the same load would at sea level.
They also pull in the same direction only up to a point, which is the part that catches people out.
Air pressure is lower, so water evaporates more readily. A water molecule at the surface of a wet fiber needs less energy to leave, and the boiling point of water falls along with it.
The air is also very dry for most of the year, so air arriving at the fabric has more room to take moisture up. A dry environment is a drying environment.
Both of those favor faster drying and both are genuinely real.
What neither of them changes is how water gets from the middle of a thick item out to its surface, and that is where the actual delay lives.
Why thick items still take a long time
Drying happens at surfaces. Water leaves a fiber at the point where the fiber meets moving air.
Water sitting in the center of a folded towel or inside a dense fill has to travel outward through the material before it can leave at all, and that journey is slow and almost unaffected by how dry the room is.
So thin things dry very quickly here and thick things do not, and the gap between them is wider than it is at sea level.
A load that mixes shirts with towels ends up half bone dry and half still damp, which is the situation that produces the over drying habit, at home and in a wash and fold load alike.
Packing the drum makes it worse. A thick item that cannot tumble keeps presenting the same face to the air for the whole cycle.
The habit of running it one more time
The reflex is understandable. Half the load is damp, so the whole load goes back in. It is the single most common drying mistake in any laundry, home or wash and fold.
The damp half gets dried and the dry half gets cooked, and cooked is the accurate word. Heat with no moisture left to carry it away raises the temperature of the fiber itself.
At altitude the dry half is drier than it feels, because the ambient air has already been pulling moisture out of it while it sat in the basket.
So a second cycle here starts from a lower moisture level than the same second cycle would elsewhere, and does correspondingly more damage.
The fix is not a shorter second cycle. It is not needing one, which is a sorting and loading question rather than a timer question, and it is the main thing a wash and fold load is set up to get right.
The other half of the answer is leaving the load alone once it comes out. Warm fabric folded straight into a stack keeps giving up the last of its moisture, and in air this dry it finishes on its own.
Shrinkage, elastic and what it costs
Cotton shrinks when heat releases the tension that was put into the yarn when it was spun. That is a one way change and it happens fastest in a hot drum with nothing left to evaporate.
Elastic is worse. The rubber or spandex in a waistband, a cuff or a sock top loses its recovery with heat, and it does not come back.
A waistband gone slack, socks that slide down, a fitted sheet that no longer grips the mattress corners. All of that is over drying rather than age.
Synthetics pill and go shiny, because the fiber surface softens and deforms against the drum.
None of it shows up on the day. It shows up as a wardrobe that stops fitting across a year or two, and people blame the clothes. Almost all of it comes from one habit, and it is the habit a wash and fold dryer is set up to avoid.
What a properly loaded wash and fold dryer does differently
Size first. A wash and fold dryer holds a load at a fraction of its capacity, so items separate in the air rather than rotating as one mass.
That is the whole mechanism. Tumbling exposes new surface to moving air constantly, and a thick item that opens and folds differently on every rotation dries from all sides instead of one.
Airflow second. A commercial dryer moves a far greater volume of air through the load, so the air leaving it is carrying moisture rather than circulating warm and already saturated.
Heat is then the least important of the three, which is the opposite of how a home dryer usually gets operated.
Sorting by thickness is the last part and the one people skip. Towels with towels and shirts with shirts, so both come out right instead of one being ruined to rescue the other.
Judging a wash and fold load by feel rather than by a timer
Cotton should come out barely dry, with no heat held in the fabric when you fold it.
If it is hot to hold, it has been in too long. Fabric at the right point is cool or only slightly warm, because evaporation has been carrying heat away until the last moment.
A little residual moisture in heavy cotton is fine and finishes in the folded stack. Bone dry towels are over dried towels.
Knits, anything with elastic and anything printed come out ahead of the rest of the load. Pull them and let the heavy items keep going.
At altitude the margin for all of this is narrower, because the ambient air keeps drying a load after the machine has stopped.
Common questions about wash and fold
Does laundry really dry faster at high altitude?
Thin items do, noticeably. Lower air pressure and very dry air both help water leave a surface. Thick items are governed by how long moisture takes to travel out through the material, and that part does not change with elevation.
Why do my clothes shrink more than they used to?
Usually over drying rather than the wash. Heat applied to fabric with no moisture left to evaporate raises the fiber temperature quickly, and cotton shrinkage and elastic loss both follow from that.
Is high heat faster?
Not usefully. Airflow and room to tumble move far more moisture than temperature does, and high heat is the part that damages fiber and elastic. A large dryer running moderate heat on a loose load beats a small one running hot.
What should I flag on a wash and fold order if I am worried about heat?
Name anything with elastic, anything knitted, anything printed and anything that has shrunk before. Those come out of the dryer ahead of the rest, and arranging it takes one sentence.
The Lakewood part
Elevation here is high enough to change everyday physics in ways people stop noticing. Water boils lower, baking instructions carry a separate column, and a wash and fold load dries on a different curve than it would at sea level.
The dry air is the larger of the two effects for most of the year. Humidity is low enough that a hung shirt is dry in a couple of hours, which is why rack drying is genuinely practical here in a way it is not in a humid climate.
That same dryness is what makes over drying so easy to fall into. A load that came out of a machine at exactly the right point keeps drying in the basket, in the car and on the folding table, so anything that felt faintly damp at the machine is usually dry by the time it is put away. Adding another cycle to chase that feeling is where the damage happens.
Strong sun is the third factor and it deserves a warning. Sunlight at this elevation fades dye and degrades elastic quickly, so the drying rack that works so well here belongs in shade rather than in the yard. A wash and fold load takes that decision away entirely, which for dark colors is worth something.
Where a thick load finishes
Thick laundry dries when it has room to tumble, and room is a question of drum size.
The machines at our self-service laundry on South Wadsworth Boulevard pair water volume on the wash side with drums large enough that a heavy load tumbles loose instead of rotating in one packed mass, which is what lets a thick item finish without being cooked.
Our machines and the store are cleaned daily.
Our wash and fold service takes the whole load and returns it folded.
For general guidance, The American Cleaning Institute publishes a fabric care guide that is a useful cross-check.
The short version
At altitude, lower air pressure and very dry air both help water leave the surface of a fabric, so thin items dry quickly. Thick items do not, because moisture in the middle still has to travel outward before it can evaporate at all. That gap is what leads people to run a second cycle, which dries the damp half and cooks the half that was already finished. The cost is cotton shrinkage, slack elastic in waistbands and sock tops, and synthetics that go shiny. A wash and fold dryer answers it with room and airflow rather than heat, and by sorting thick from thin so neither one is ruined to rescue the other.
WaveMAX Lakewood is at 1090 S Wadsworth Blvd, easy to reach from Lakewood and the surrounding area. If you have a load that will not fit at home, we have the machines for it.