The Best Way to Wash Polyester So It Doesn't Stretch, Shrink, or Pill

Polyester is one of the most common fabrics found in homes and closets—and understandably so. This synthetic textile is known for both its durability and affordability. But while polyester may be low-maintenance when compared to natural fabrics like silk or wool, it still requires the right care to look its best and stand up to frequent wear and use.

Fortunately, washing polyester is relatively simple once you understand this fabric's needs. Here’s everything you need to know about how to wash polyester properly, what settings to use, and the mistakes you'll want to avoid.

How to Wash Polyester, Step-by-Step

"Polyester is durable, but needs gentle care to stay in shape and avoid pilling," explains Jackie Ashley, co-founder of Ashley & Co. Everyday Launder.

For best results, heed her advice below.

Step 1: Read the Care Label

Before treating any garment, always start by reading the manufacturer’s care tag. While polyester is typically machine-washable, certain blends and garments may have slightly different requirements. The label should tell you the best water temperature, cycle setting, and whether or not the item can go in the dryer.

Step 2: Prep Your Garment

Pre-treat any stains with a gentle stain remover. "Turning clothes inside out helps reduce friction," recommends Ashley. "Don’t overload the machine so clothes can move freely and get a proper clean."

If your polyester item has embellishments or beading, place it in a mesh laundry bag for added protection.

Step 3: Choose the Right Settings and Detergent

Polyester washes best in cold or warm water, says Ashley, who recommends a low-spin cycle to reduce agitation. Avoid hot water, which can damage fabric fibers.

Use a mild detergent, Ashley also recommends. "Using harsh detergents ... can shorten its lifespan," she warns. "A mild detergent, like Everyday Launder, works well."

Step 4: Dry with Care

Polyester can go in the dryer—but special care is key. High heat can cause the fabric to shrink, warp, or lose its shape. "Stick to cool washes, gentle cycles, and low-heat drying to keep polyester looking its best," says Ashley.

Tumble dry on low. If you’d like to skip the dryer altogether, polyester air-dries quickly—just lay flat in a well-ventilated space.

Common Polyester Care Mistakes to Avoid

Polyester is designed to be an easy-care fabric, but the wrong washing habits can leave your garments looking worn before their time. Steer clear of the common pitfalls below.

• Avoid High Heat: Hot temperatures can break down fibers, causing pilling and shrinkage. "The biggest mistake is using high heat," Ashley says of improper polyester care. Wash garments in cool water and avoid drying on high heat.
  
• Don't Overload the Washer: Too many clothes in the machine adds to agitation, which can wear down fabric fibers. Moreover, detergent and water won't be able to circulate properly.
• Never Skip the Care Label: Use the above washing instructions are guidelines—your garment's care label will list any specific warnings or special considerations you need to be wary of. This is vital if you want to avoid damage to your items, says Ashley.
  
• Don't Use Too Much Detergent: More soap doesn’t mean cleaner clothes. Detergent residue can cling to polyester fibers, making it more difficult for them to rinse cleanly.

With a little attention to water temperature, cycle selection, and drying methods, your polyester pieces will stay in top shape with minimal effort.