Pressing vs. ironing
Ironing and pressing both use heat, but they work differently. Ironing slides the iron back and forth across fabric to remove wrinkles, usually on a finished item. Pressing lifts the iron, sets it down on a spot, holds briefly, then lifts and moves it. Because the iron isn’t dragged, pressing is less likely to stretch fabric out of shape, which matters for seams, curves and bias edges.
Many sewing instructions use the word “press” deliberately, and it means this up-and-down motion.
Why pressing matters
Pressing supports nearly every stage of a project:
- It sets stitches. A quick press along a seam settles the thread into the fabric, which can make the seam sit flatter.
- It makes accurate sewing possible. Folded hems, pleats and seam allowances that are pressed first are easier to stitch evenly.
- It shapes fabric. With heat, steam and a curved form, flat fabric can be encouraged to follow the curves of a body, as in darts and sleeve caps.
- It improves the finished look. Crisp seams, flat hems and clean edges tend to be what separates a handmade piece that looks polished from one that looks rumpled.
- It reduces bulk. Opening or grading seams and pressing them in the right direction helps layers lie flat.
When to press during a project
A common habit is to press at each stage rather than only at the end:
- Before cutting: press the fabric so the pieces are cut flat. If you plan to wash first, see whether to wash fabric before sewing.
- After stitching each seam: first press the seam flat as sewn, which settles the stitches, then press it open or to one side as the pattern directs.
- Before crossing a seam: press seams before sewing another seam over them.
- After adding interfacing: if you are using fusible interfacing, follow the manufacturer’s instructions. Sew-in types need no fusing, but the pieces still benefit from a press. See the sew-in interfacing guide.
- At the end: a final press of hems, collars and edges.
Basic pressing technique
- Check the fabric’s heat tolerance and start on a lower setting, increasing only if needed. A test on a scrap is wise.
- Press on the wrong side where you can, or use a pressing cloth on the right side.
- Place the iron, hold for a moment, then lift. Avoid dragging it, especially on bias cuts and knits.
- Let steamed fabric cool and dry before moving it, since the shape sets as it cools.
- Press along the grain when possible to avoid distortion.
- Keep pins away from the iron’s path. Metal heads can scratch the soleplate and plastic heads may melt.
Tools that help
- Iron and ironing board: a steady, clean soleplate matters; an iron that spits or leaves residue can mark fabric.
- Pressing cloth: a layer of cotton muslin or similar between iron and fabric protects against shine and scorching. Commercial pressing cloths are made for the job.
- Tailor’s ham and seam roll: firm cushions that let you press curves and narrow tubes without creating flat creases. See our sewing tools guide for how they fit in a kit.
- Clapper: a smooth wooden block pressed on a steamed seam to help flatten it on some fabrics.
- Sleeve board: for sleeves, cuffs and small areas.
Pressing by fabric
Always check the care label or fiber content and test on a scrap. Generally speaking:
- Cotton and linen tolerate high heat and steam. Linen often responds best when slightly damp. See ironing linen and other fabrics.
- Wool is usually pressed with steam and a pressing cloth to avoid shine.
- Silk often needs lower heat and a cloth, and some silks water spot, so test first.
- Synthetics such as polyester and nylon can melt at high temperatures and need a low setting.
- Velvet and pile fabrics can be crushed by pressing and are often steamed gently from the wrong side instead.
Common mistakes
- Ironing instead of pressing, which can stretch bias edges and knit seams.
- Using too much heat on synthetics or a heat-sensitive trim.
- Pressing the right side directly, leaving shine on darker or textured fabrics.
- Pressing over pins, thick seams or zipper teeth, which can leave imprints on the fabric.
- Skipping the press until the end, by which point some seams are hard to reach.
Signs of a well-pressed garment
Seams lie flat without puckering, hems hang evenly, darts and collars have a clean shape, and the surface is free of shine and imprints. Unpressed work tends to show rolled seams, bumpy corners and uneven edges.
FAQ
Is pressing better than ironing?
They suit different jobs. Pressing is generally preferred during construction because it avoids stretching, while ironing is for removing wrinkles from finished, stable fabric.
Is pressing the same as steaming?
No. Steam can be used while pressing, but steaming alone, such as with a handheld steamer, relaxes wrinkles without the pressure of an iron. Many sewists use both.
Can I use parchment paper instead of a pressing cloth?
Some people use it, particularly to protect the iron from fusible adhesive. Parchment is not a perfect substitute for a cloth, since it doesn’t absorb moisture or let steam through the way fabric does. Test on a scrap and follow product instructions.
Why is pressing important for a garment?
It sets seams, shapes curves and removes creases, which together affect both fit and appearance.