How to Block Crochet Projects (Wet, Steam & Spray Methods)

Blocking is the difference between a project that looks 'nice, obviously handmade' and one that looks 'store-bought expensive.' It evens out stitches, straightens edges, opens up lace patterns, and settles the yarn into its final shape. Skipping it is like baking cookies and skipping the cooling rack — everything technically works, but the result is meaningfully worse.

When you should block

• Anything with lace or open-work — blocking is what makes the pattern visible
• Motifs like granny squares BEFORE joining them
• Anything worn (shawls, garments, hats) — blocking opens up drape
• Anything that looks slightly wonky, cupped or uneven off the hook

You can usually skip blocking on: chunky amigurumi, small utility items (dishcloths, coasters), and pieces that will be washed frequently anyway.

Method 1: Wet blocking (best for natural fibers)

Best for wool, cotton, linen, silk, and blends. Not for pure acrylic — see Method 3.

1. Fill a basin with cool water and a small squirt of wool wash or gentle shampoo. Submerge the piece and gently press to soak — do not agitate or wring.
2. Let it sit 15–20 minutes so the fibers fully absorb water.
3. Drain the basin, gently press water out of the piece. Roll in a dry towel and press down to absorb more water — never wring.
4. Lay the damp piece on your blocking mat. Shape it to the correct dimensions using a tape measure. Pin every corner first with T-pins, then pin the edges every inch.
5. Let it dry completely — usually 12 to 24 hours depending on humidity. Do not remove pins early.

Method 2: Spray blocking (gentler, faster)

Best for pieces you don't want to soak — dyed yarns, delicate lace, or when you're short on time.

1. Lay the piece on your blocking mat. Shape and pin to the correct dimensions.
2. Mist all over with cool water from a spray bottle until damp but not soaked.
3. Adjust pins if the fabric shifts as it absorbs moisture.
4. Let dry completely — usually 6 to 12 hours.

Method 3: Steam blocking (works on acrylic)

The only blocking method that works on 100% acrylic. Also fast and effective on cotton or wool if you want to skip a full wet block.

1. Lay the piece on a heat-safe surface (an ironing board or towel over a blocking mat).
2. Shape and pin to correct dimensions.
3. Hold a steam iron ONE INCH above the fabric — never touch it. Move steadily across the surface, letting steam penetrate the fibers.
4. Do not press. Do not touch the iron down. Direct heat on acrylic 'kills' the yarn — it goes permanently limp and shiny.
5. Let cool completely before removing pins (usually 30 minutes to 1 hour).

Blocking granny squares

Block every square to the same size before joining a blanket. Use a template — a piece of cardboard cut to your target square size — and pin each square to match. This is the single biggest improvement you can make to a granny-square blanket.

Blocking shawls and lace

Lace patterns look closed and lumpy until they're blocked open. Wet-block and stretch aggressively — you want tension throughout the piece to open up every chain space. Blocking wires help enormously for straight edges on triangle shawls.