Does Polyester Shrink in the Dryer?

Does Polyester Shrink in the Dryer?

Polyester is a popular synthetic fabric known for its durability, wrinkle resistance, and easy maintenance. As with any type of clothing, one common concern when it comes to caring for polyester garments is whether they will shrink in the dryer. In this article, we will delve into the question “does polyester shrink in the dryer?” and explore the factors that can affect the shrinkage of polyester fabrics. By understanding the nature of polyester and the proper care techniques, you can ensure that your polyester garments maintain their shape and size throughout their lifespan.

Understanding Polyester:

Polyester is a synthetic polymer made from a combination of chemicals, primarily derived from petroleum. It is a versatile fabric widely used in various industries, including fashion, home furnishings, and sportswear. Polyester is renowned for its ability to resist stretching, shrinking, and wrinkling, which makes it an ideal choice for many consumers. However, it is important to note that while polyester is relatively resistant to shrinkage compared to natural fibers like cotton or wool, it can still be affected by high heat in the dryer.

Factors Affecting Polyester Shrinkage:

Several factors influence the shrinkage of polyester in the dryer. Let’s explore these factors in more detail:

  1. Heat: Polyester is thermoplastic, meaning it can melt or deform when exposed to high temperatures. When polyester fabrics are subjected to heat in the dryer, the fibers can contract, causing the garment to shrink. The severity of shrinkage depends on the temperature setting and the duration of drying.
  2. Fabric Construction: The way polyester fabrics are constructed can also impact their shrinkage potential. Fabrics with a looser weave or knit structure are generally more prone to shrinking since there is more room for the fibers to contract.
  3. Blended Fabrics: Polyester is often blended with other fibers like cotton or rayon to enhance its properties. In such cases, the shrinkage of the fabric may be influenced by the characteristics of the blended fibers. For example, if a polyester-cotton blend is subjected to high heat in the dryer, the cotton fibers may shrink more, causing the overall fabric to appear smaller.

Tips to Minimize Shrinkage:

To prevent excessive shrinkage of polyester garments in the dryer, consider the following tips:

  1. Read the Care Label: Always refer to the care label attached to the garment for specific instructions on washing and drying. The label will provide guidance on the appropriate temperature settings and whether machine drying is recommended.
  2. Use Low Heat or Air-Dry: If machine drying is permitted, select the lowest heat setting or opt for the air-dry setting. This reduces the risk of heat damage and shrinkage.
  3. Remove Promptly: Avoid leaving polyester garments in the dryer for an extended period. Remove them as soon as they are dry to prevent any residual heat from causing shrinkage.
  4. Test with a Small Sample: If you are unsure about the shrinkage potential of a polyester fabric, you can cut a small sample from an inconspicuous area and test it in the dryer. This will give you an idea of how the fabric will react without risking the entire garment.


Q1: Does polyester shrink in the dryer?

A1: Polyester has a relatively low shrinkage rate compared to natural fibers like cotton or wool. However, it can still shrink when exposed to high heat in the dryer. Proper care and following the recommended drying instructions can help minimize shrinkage.

Q2: What causes polyester to shrink in the dryer?

A2: The primary cause of polyester shrinkage in the dryer is the exposure to high heat. Polyester is thermoplastic, meaning it can melt or deform under high temperatures. When the fibers contract due to heat, the garment can shrink.

Q3: How much does polyester shrink in the dryer?

A3: The amount of shrinkage can vary depending on several factors, including the temperature setting, duration of drying, fabric construction, and whether it’s a pure polyester fabric or a blend. Generally, polyester shrinks less than natural fibers, with shrinkage rates ranging from 1% to 5%.

Q4: Can I prevent polyester from shrinking in the dryer?

A4: While you cannot completely eliminate the risk of shrinkage, you can take certain precautions to minimize it. Follow the care instructions on the garment’s label, use low heat or air-dry settings, and remove the garment promptly from the dryer when it’s dry.

Q5: Should I avoid putting polyester in the dryer altogether?

A5: It is not necessary to avoid putting polyester in the dryer entirely. Polyester is generally dryer-safe, but it’s important to use the appropriate settings to reduce the risk of shrinkage. Following the care instructions and using low heat settings can help maintain the garment’s size and shape.

Q6: Can I stretch out a shrunken polyester garment?

A6: Unlike natural fibers, polyester is resistant to stretching. Once it has shrunk, it can be challenging to stretch it back to its original size. It is best to prevent shrinkage by taking proper care during drying rather than relying on stretching afterward.

Q7: Does all polyester shrink in the dryer?

A7: While polyester has a low shrinkage rate, it is not immune to shrinking in the dryer. However, the extent of shrinkage can vary depending on the specific type of polyester fabric, its construction, and other factors such as heat and blend with other fibers.

Q8: Can I use an iron to remove shrinkage from polyester?

A8: Using an iron may help relax the fibers and reduce the appearance of minor shrinkage in polyester garments. However, it is important to use a low heat setting or place a pressing cloth between the iron and the fabric to prevent heat damage. It’s always best to follow the care instructions and avoid excessive heat.


While polyester is known for its resistance to shrinking and wrinkling, it is not entirely impervious to the effects of high heat in the dryer. Factors such as heat, fabric construction, and blended fibers can contribute to the shrinkage of polyester garments. By following the recommended care instructions, using low heat settings, and promptly removing garments from the dryer, you can minimize the risk of shrinkage and ensure that your polyester clothing maintains its shape and size for a longer period.

Leave a Reply

Your email address will not be published. Required fields are marked *