One of the most common questions I’m asked is:
“Do I really need to wash my fabric before sewing?”
You’ve just returned home from the fabric store with a beautiful new piece of fabric. You’re excited, inspired, and ready to start cutting straight away. So why pause to think about washing or pre-treating your fabric first, and is it really necessary?
The short answer is yes.
Your fabric should almost always be pre-treated before sewing.
Pre-treating fabric is essential to prevent shrinkage, distortion, and disappointment later on.
Many fabrics shrink the first time they are washed or cleaned. If you skip this step and sew your project straight away, you may find that:
A finished dress shortens after its first wash
A garment tightens or twists
A cushion cover no longer fits the insert
Pre-washing your fabric ensures that any shrinkage happens before you cut and sew, not after your project is complete.
The most important rule is this:
Pre-treat your fabric in the same way you plan to care for the finished garment or item.
Think about how you will clean the finished piece and treat the fabric accordingly.
General Fabric Care Guidelines:
Cotton, linen, polyester, and knit fabrics:
→ Machine wash
Silk, wool, and delicate fabrics:
→ Hand wash or dry clean
Use the same water temperature and method that you will use for the finished item. If you plan to tumble dry your garment, tumble dry the fabric before sewing as well.
Some fabrics fray heavily in the wash. To prevent this:
Overlock (serge) the raw edges or
Use a wide zigzag stitch along the edges
This step is only necessary for fabrics prone to fraying, but it can save time and mess later.
Once the fabric is dry, press or iron it flat so it’s ready for cutting.
Pre-treating fabric does require a little planning. You may need to wait a day before starting your project, but it’s time well spent.
Skipping this step could lead to:
Garments that no longer fit
Projects that don’t look as intended
Taking the time to prepare your fabric properly helps ensure your finished piece looks beautiful and lasts.
Preparation is key.
