Your favourite pair of jeans deserves more than a quick toss into the washing machine. Whether you’re rocking a classic pair of Levi’s 501s or your go-to slim fits, proper denim care makes all the difference between jeans that last for years and ones that fade and lose their shape after a few months.
Here’s everything you need to know about washing, drying, and maintaining your denim — informed by decades of expertise from the people who know denim best.
The Golden Rule: Wash Less, Wear More
The single most important thing you can do for your jeans is to wash them less often. Over-washing strips away the unique characteristics that make your denim special — those natural creases, whisker marks, and fades that develop with wear are what give your jeans their personality.
A good rule of thumb is to wash your jeans after about 10 wears, unless they’re visibly dirty or starting to smell. Between washes, spot clean any stains with a mild soap and a damp cloth or an old toothbrush. This simple habit alone can dramatically extend the life of your favourite pair.
Some serious denim enthusiasts go even further — only washing their jeans a couple of times a year, or even not at all for raw denim. While that’s not for everyone, it proves the point: your jeans don’t need to be washed after every wear. Not even close.
How to Wash Jeans: Step by Step
Step 1: Turn Them Inside Out
This simple but often neglected step is the foundation of good denim care. Turning your jeans inside out protects the outer colour from fading and minimises direct contact with detergents and chemicals. The soap in laundry detergent is designed to strip away stains and dirt, but it can also strip away colour — especially on the outer surface. By turning them inside out, any colour loss happens on the inside where it doesn’t show. This step is especially important for dark-wash and black jeans that are more prone to colour loss.
Step 2: Zip and Button Up Everything
Make sure all closures — zips, buttons, snaps — are fastened before the wash. This maintains the shape of your jeans and prevents snagging on other items (or on the jeans themselves) during the wash cycle. Open hardware can also cause small holes and tears in the fabric over time.
Step 3: Separate Your Colours
Dark jeans go with dark items. Light jeans go with light-coloured clothing. This prevents dye transfer and keeps everything looking its best. This is especially critical for new denim — a brand new pair of dark-wash jeans can bleed significant amounts of dye in the first few washes.
Step 4: Don’t Overload the Machine
Give your jeans enough space to move freely during the wash cycle. Overloading the machine causes friction between garments, which increases the risk of fabric damage, uneven washing, and accelerated fading. Your jeans need room to breathe.
Step 5: Use a Mild Detergent
This is crucial, especially for coloured and dark-wash denim. Standard detergent pods and regular washing powders can be too harsh, stripping colour faster than you’d expect. Use a mild or gentle detergent — or better yet, one specifically formulated for dark clothing. For an all-natural option, a liquid castile soap works beautifully. Look for detergents with non-oxidising bleach to help your jeans keep their colour depth.
Step 6: Skip the Fabric Softener
This surprises a lot of people, but fabric softeners can actually harm your denim. They leave a residue on the fabric that affects both the texture and appearance of your jeans over time. Instead, try adding a cup of distilled white vinegar to the rinse cycle. It sounds unusual, but the vinegar softens the fabric naturally, removes detergent residue, and helps seal the dye into the fibres — keeping your colours vibrant for longer.
Step 7: Wash in Cold Water Only
Always set your washing machine to cold water. Hot water might seem more effective at cleaning, but it dramatically increases the chances of shrinkage and colour loss. Cold water is gentler on the fibres, preserves the fit you love, and is better for the environment too.
Step 8: Choose the Gentlest Cycle
Set your machine to the gentle or delicate cycle. Denim is a tough fabric, but the agitation of a normal wash cycle causes unnecessary stress on the fibres and finish. A gentler cycle protects the fabric and prevents those unwanted crack marks from forming along the folds and creases.
How to Wash New Denim
Just ripped the tags off a new pair? For the first few washes, keep your new jeans completely separate from your other clothing. New denim — especially dark-wash — can bleed significant amounts of dye during initial washes. Washing them alone prevents unwanted colour transfer to your other clothes. Follow all the same steps above, and don’t be alarmed if the wash water comes out tinted — that’s normal for the first couple of washes.
How to Wash White Jeans
White denim plays by slightly different rules. Always wash white jeans with other white or very light-coloured items only — never mixed in with darks or colours. If you need to brighten them up, a moderate amount of mild bleach can help tackle tough stains without compromising the fabric’s integrity. For everyday stains, spot clean immediately with bar soap, dish soap, or even shampoo using a sponge or soft toothbrush. Speed is everything with white denim — the longer a stain sits, the harder it is to remove. And avoid scalding water, as temperatures above 85°F can actually set stains permanently rather than removing them.
How to Wash Black Jeans
Black jeans are notorious for losing their depth of colour faster than any other wash. Follow all eight steps above, and add these extra precautions: keep them out of direct sunlight to prevent fading, always use a dark-colour-specific detergent, and consider adding distilled white vinegar to the wash — it works with the chemicals in the dye to help seal the colour into the fabric. If you hang-dry them, choose the shadiest spot possible. The goal is to keep that deep, saturated black looking true for as long as you can.
How to Wash Raw Denim
Raw (unsanforised) denim hasn’t been pre-washed or pre-shrunk, so it requires a completely different approach. Hand washing is the way to go here. Fill a bathtub or large sink with cold water and add a small amount of mild detergent, then soak your jeans for about 30 minutes. Rinse thoroughly with cold water to remove all detergent and dirt.
The crucial difference: never wring out raw denim. Wringing distorts the custom fit that you’ve developed through wear. Instead, gently roll your jeans from the hem upwards to squeeze out excess water. Line dry in a shaded area — and be patient. The result is worth it: raw denim that’s been properly cared for develops a truly unique patina that’s impossible to replicate.
How to Dry Jeans
This part is just as important as the washing. Two words: air dry.
The tumble dryer is denim’s worst enemy. The heat and tumbling action can damage the fibres, cause significant shrinkage, and alter the fit you love. Air drying preserves the fit, colour, and fabric integrity far better than any dryer setting.
Here’s how to do it right:
Hang them inside out to protect the outer surface from dust and potential fading from indirect sunlight. Choose the shadiest spot you can find — this is especially important for dark and black denim.
Try a drying rack if you have one. It allows air to circulate around the jeans from all sides, speeding up the drying process evenly.
Avoid humid areas. Humidity keeps moisture trapped in the fabric and can lead to musty odours — not exactly the fresh-from-the-wash feeling you’re after.
A quick tip: if your jeans feel a bit stiff after air drying, you can toss them in the dryer on low heat for just a few minutes to soften them up. But keep it brief — the goal is to soften, not to dry.
What About the Freezer Trick?
You may have heard the advice to freeze your jeans to kill bacteria and odours instead of washing them. While putting your jeans in the freezer can help reduce odours, it doesn’t actually remove dirt or kill all bacteria the way washing does. It’s a temporary fix at best. For a proper refresh between washes, spot cleaning or a quick wash in cold water is far more effective. And for getting odours out without a full wash, try hanging your jeans outdoors — fresh air works surprisingly well.
Can You Hand Wash Jeans?
Absolutely — and it’s actually the gentlest method available. Fill a bathtub or large basin with cold water, add a small amount of mild detergent, and let your jeans soak for about 30 minutes. Give them a gentle swish occasionally. Rinse thoroughly with cold water, gently roll from the hem to remove excess water, and line dry in a shaded area. This method is ideal for vintage pieces, raw denim, or any jeans you want to treat with extra care.
Frequently Asked Questions
How often should you wash jeans?
About every 10 wears, unless they’re visibly dirty or stained. Less is genuinely more when it comes to denim.
Can you wash jeans in a washing machine?
Yes — cold water, delicate cycle, inside out, mild detergent, air dry. Follow those five things and your machine-washed jeans will stay in great shape.
What detergent is best for denim?
A gentle, mild detergent is best. For dark jeans, use one formulated for dark colours. Natural liquid castile soaps are also excellent options.
Should you wash jeans in cold or hot water?
Always cold. Hot water causes shrinkage and accelerates colour loss.
Can you put jeans in the dryer?
Ideally, no. Air dry whenever possible. A few minutes on low heat to soften stiff denim is fine, but never a full dryer cycle.
What’s the most sustainable way to care for denim?
Wash less, wash in cold water, use a biodegradable detergent, and air dry. These steps reduce water consumption, energy usage, and environmental impact while keeping your jeans in top condition for longer.
Why Proper Denim Care Matters
Taking care of your jeans isn’t just about aesthetics — it’s about sustainability. When you wash less frequently, you conserve water. When you choose gentler detergents, you’re kinder to the environment. When you air dry, you save energy. And when your jeans do finally reach the end of the road, consider patching them up, cropping them into shorts, or upcycling the denim into something new entirely. Good denim only gets better with age — if you let it.
Your jeans take care of you every day. Return the favour.
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