How to Wash Jeans for the First Time: What You Need to Know

That first wash is the most important wash your jeans will ever go through. New denim is loaded with excess indigo dye that hasn't fully set — wash them wrong and you'll lose a huge amount of color in one go, and potentially ruin other clothes in the same load. Here's exactly how to wash jeans for the first time.

Should You Wash New Jeans Before Wearing Them?

Yes — for two reasons. First, new jeans often contain excess dye, sizing chemicals, and finishing agents from the manufacturing process that can irritate skin. Second, washing before wearing helps set the dye and reduces how much bleeds onto your skin, car seats, or furniture during wear.

That said, many denim purists — especially raw denim enthusiasts — prefer to wear new jeans unwashed for months to develop natural fade patterns. If that's your goal, skip the first wash and see the raw denim section below.

How to Wash New Jeans for the First Time

Step 1: Do a vinegar pre-soak
Before the first machine wash, soak your new jeans in a basin of cold water with 1 cup of white vinegar for 30–60 minutes. Vinegar is mildly acidic and helps set the indigo dye in the fabric, significantly reducing how much bleeds out in future washes. This is the single most effective thing you can do before that first wash.

Step 2: Turn inside out
Always turn new jeans completely inside out. The outer surface carries the most dye and is most vulnerable to friction and fading.

Step 3: Wash alone or with similar dark items only
New jeans bleed heavily — especially dark or raw denim. Wash them alone or only with other dark items for the first 2–3 washes. Never wash new jeans with light-colored clothing.

Step 4: Use cold water
Cold water is essential for the first wash. It keeps cotton fibers contracted and minimizes dye release. Never use warm or hot water on new denim.

Step 5: Use a dark-specific detergent
Standard detergents contain optical brighteners that strip color from dark denim. For new jeans, use a detergent formulated to protect dark colors.

💡 Recommended: The Laundress Darks Detergent — concentrated, free from optical brighteners, specifically designed to keep dark colors rich and vibrant from the very first wash. Use it for every subsequent wash too.

Step 6: Gentle cycle
Select the gentle or delicate cycle to minimize agitation and friction on the denim surface.

Step 7: Air dry
Hang jeans by the waistband or lay flat to air dry away from direct sunlight. Never put new jeans in the dryer — heat causes shrinkage and accelerates fading right from the start.

Will New Jeans Shrink After the First Wash?

It depends on the denim. Most modern jeans are pre-shrunk and won't shrink significantly in cold water. However:

• Raw denim can shrink 1–3 inches in the waist and length after the first wash
• Stretch denim (with spandex) is very resistant to shrinking in cold water
• 100% cotton denim may shrink slightly, especially in warm water

Always wash in cold water and air dry to minimize any shrinkage risk.

Will New Jeans Bleed Color?

Yes — especially dark and raw denim. Expect significant dye bleeding in the first 2–3 washes. This is normal and will reduce with each subsequent wash. Always wash new dark jeans separately until the bleeding stops.

To test if your jeans are still bleeding: rub a damp white cloth on the inside of the waistband. If it picks up color, wash separately for another cycle or two.

Frequently Asked Questions

Do you have to wash new jeans before wearing?
It's strongly recommended. New jeans contain manufacturing chemicals and excess dye that can irritate skin and bleed onto furniture or other clothing.

How do you stop new jeans from bleeding?
A vinegar pre-soak before the first wash helps set the dye significantly. Washing in cold water with a dark-specific detergent also reduces bleeding with each wash.

Can new jeans go in the dryer?
Not recommended — especially for the first wash. Heat causes shrinkage and accelerates fading. Air dry new jeans flat or hanging.

How many times do you need to wash new jeans before they stop bleeding?
Most jeans stop bleeding significantly after 3–5 washes. Raw denim may take longer. Always wash separately until the bleeding stops.

Should I size up in jeans because they'll shrink?
Only for raw denim, which can shrink noticeably. Most modern pre-washed denim shrinks very little in cold water.

The Bottom Line

The first wash sets the tone for how your jeans will look for years to come. Do a vinegar pre-soak, wash inside out in cold water with The Laundress Darks Detergent, and air dry. This simple routine protects the color from day one and gives your jeans the best possible start to a long life.