How to Clean a Hammock: Mold, Mildew, and the Sun

The Kootek Is the Hammock I Clean Most Often, and That's a Good Thing

The Kootek camping hammock gets advertised as the budget pick that does it all. But after two years of owning one, hanging it between two oak trees every single summer weekend, and cleaning it more times than I can count, I can tell you the marketing doesn't quite capture it. The fabric is thinner than you'd expect, the "double" is really a spacious single, and the straps will fail if you hang them on rough hooks. But it's also the hammock I reach for nine times out of ten, the one I've bought five of, and the one Juniper has claimed as her own. Here's the honest truth about living with it, and more importantly, how to keep it alive.

Product	Price	Why it won	Why it lost
Kootek Camping Hammock (B01LY4MZ4I)	~$20	Soft 210T nylon, packs to grapefruit size, survived two full seasons	Thin fabric rips on sharp objects, straps are the weak point
SZHLUX Camping Hammock (B07DMP6R6J)	~$17	Double stitched seams, slightly wider than Kootek, great color options	Same thin fabric issue, no bug net included
GAFETE Double Hammock (B07DFB4B9W)	~$25	Actually fits two smaller adults, sturdy carabiners	Heavier than the others, straps shorter than advertised

How I Tested These for Cleaning and Durability

I didn't set out to write a cleaning guide. I set out to find the best hammock under $25, and somewhere around month eight, I realized I was also accidentally running a long-term durability test. Every hammock in this batch has been through at least one full season of Pacific Northwest weather. That means rain, morning dew, the occasional surprise hailstorm, and one memorable week where a family of squirrels decided my Kootek was their new condo.

The cleaning routine started as a necessity. I left a hammock up for three weeks straight in July, and when I finally took it down, the mildew spots told me exactly where the fabric had been touching the tree trunk. That was my wake-up call. Now I have a system, and I've refined it across five different hammocks over two years.

The Mold Problem Is Real, and It's Your Fault

Here's the thing nobody tells you about parachute nylon: it's a sponge. The 210T nylon taffeta that makes these hammocks pack down so small is the same material that soaks up moisture and holds it against the fibers. Leave a hammock up overnight with dew on it, pack it into its stuff sack while it's damp, and you'll have mildew within a week. I learned this the hard way with a SZHLUX I stored wet after a fishing trip. By the time I pulled it out for the next weekend, the fabric had those telltale black speckles and a smell that made Juniper refuse to get anywhere near it.

The fix is simple and cheap. Mix one cup of white vinegar with a gallon of warm water in a tub or your bathtub. Submerge the hammock fully, let it soak for about 30 minutes, then gently agitate the fabric with your hands. Rinse thoroughly with cold water until the vinegar smell is gone. Hang it to dry completely before you even think about putting it in the stuff sack. That's the entire secret. Vinegar kills the mildew spores without degrading the nylon, and it costs about 40 cents per wash.

For tougher mildew stains that have already set in, add a quarter cup of baking soda to the vinegar soak. Let it fizz and work for an hour instead of 30 minutes. I've pulled two hammocks back from the brink this way, and both are still hanging in my backyard today.

The Sun Is Both Your Best Friend and Your Worst Enemy

The most counterintuitive part of hammock care is that the same sun that dries out your mildew is slowly destroying your fabric. Parachute nylon degrades under UV exposure. I've seen it happen. The Kootek I left up for an entire summer in a spot that got direct afternoon sun started to feel chalky by August. The color faded from a deep teal to something closer to a pale green, and the fabric lost its softness.

So here's the rule I follow now: sun-dry for the mold kill, then move to shade. When I clean a hammock, I hang it in full sun for the first hour to make sure any lingering mildew is dead, then I relocate it to a shaded spot on my porch for the remaining few hours. It takes longer, but the fabric stays supple. My current Kootek has been through two summers of this routine and still feels as soft as the day it arrived.

Spot Cleaning: The 90% Solution

Most of the time, you don't need a full bath for your hammock. You need to handle a specific mess. In my two years with these hammocks, the spot-cleaning list includes bird droppings, tree sap, one unfortunate incident with a spilled coffee, and the mystery brown smear that I never fully identified but Juniper seemed to know something about.

For spots, I use a soft-bristle brush and a mixture of mild dish soap and cool water. Dab the spot, don't scrub. Scrubbing works the stain deeper into the weave and can actually abrade the nylon. Work from the outside of the stain inward to keep it from spreading. Rinse with a damp cloth, then let it air dry. This handles about 90% of what will happen to your hammock.

Tree sap is the exception. Soap and water won't touch it. For sap, rub the spot with ice to harden it, then gently scrape with a plastic card or your fingernail. Whatever residue remains, hit it with rubbing alcohol on a cotton ball. Test the alcohol on an inconspicuous corner first, because it can affect the dye.

The SZHLUX: The One I Ended Up Buying Twice

Let me talk about the SZHLUX specifically, because it's the hammock I've cleaned more than any other, and it's also the one I've gifted twice. The version I own is the double, and it measures about 110 inches long by 78 inches wide. That width is the differentiator. It's noticeably roomier than the Kootek when you're lying diagonally, which is the position that actually lets you sleep flat.

The cleaning story here is the fabric. It's a 210T nylon taffeta, same as the Kootek, but the weave feels slightly tighter. In practice, that means it resists mildew a bit better and cleans up faster. I've had to do the full vinegar soak on my SZHLUX twice, and both times the mildew came out completely with no residual staining.

The downside is the straps. The included straps are 10 feet long with 14 adjustment loops, which is great for tree spacing, but the carabiner clips are the weak point. After about eight months of regular use, the clip on one end started to feel loose. I replaced it with a standard aluminum carabiner from my hardware bin and it's been fine since. If you're hard on hardware, budget for that swap.

The GAFETE: The One That Actually Fits Two People

The GAFETE double is the exception to my rule about double hammocks. It genuinely fits two average-sized adults, which I've tested with my neighbor and her husband after I gave them one as a housewarming gift. They're both around 5'8" and not small people, and they've spent entire afternoons in it together without complaining about being cramped.

What that means for cleaning is that the GAFETE is the hammock you'll need to clean more often, because it's the one that gets used for social hangs. More bodies means more sunscreen, more sweat, more crumbs. The fabric is the same parachute nylon, but it's a slightly heavier weight, which makes it a bit more forgiving in the wash. I've run this one through the full vinegar soak and it came out looking new.

The trade-off is packability. The heavier fabric means it doesn't compress quite as small, and the whole thing weighs in at about 2.2 pounds including straps. That's fine for backyard use, but it's not the one I grab for backpacking.

What About the Washing Machine?

I get this question every time I post about hammock care. Can you machine wash a parachute hammock? The answer is technically yes, but I don't recommend it. The agitation of a washing machine can stress the sewn seams and the end loops, which is where these hammocks fail first. I've heard from people who machine washed their hammocks on delicate with cold water and had no issues, but I've also heard from people who pulled theirs out with a ripped seam.

If you absolutely must machine wash, use a front-loading machine on the gentlest cycle, cold water, mild detergent, no spin. Put the hammock in a mesh laundry bag to reduce friction. Then hang dry completely. But honestly, the hand wash takes 45 minutes of mostly passive time and it's gentler on the fabric. I've never machine washed any of my five and I don't plan to start.

How Often Should You Clean?

The answer depends on how you use your hammock. My rule of thumb: if it's been rained on, clean it before you store it. If it's just been used for afternoon hangs, a monthly spot check and airing out is enough. If it's been through a camping trip where it touched damp ground or got packed away warm, clean it as soon as you get home.

The 3 AM comfort test extends to cleaning. If you wake up in the middle of the night and the hammock feels damp, that's your signal to take it down and dry it. A damp hammock is a mildew factory, and mildew is what kills these things faster than anything else.

My Honest Bottom Line

The Kootek is still the one I'd buy first, and at about $20, the cost-per-day math works out to less than a quarter per hang over two summers. But every hammock in this batch will last longer if you treat the cleaning as part of the system. Vinegar and water for mildew, soap and water for spots, shade for drying, and never store it wet. That's the whole guide. I've got five hammocks hanging in my backyard right now that prove it works. [Check price on Amazon]