Crochet Single Thermal Stitch Guide Step By Step

Get ready to cozy up with the Crochet Single Thermal Stitch, a snug and warm technique that's perfect for chilly days. This stitch doubles up the thickness of your crochet work, making it ideal for those comfy winter accessories like hats and scarves.

Crochet Single Thermal Stitch

Material:

Chunky (size 5) yarn
6.5 mm crochet hook

Step-by-Step Tutorial:

Starting Off:

Create a slip knot to start, using your preferred method.
Chain any number of stitches for the foundation chain. This tutorial uses 15 chains for demonstration, but you can adjust according to the desired length of your project. There's no specific multiple required.

Row 1: Single Crochets in Back Loops

Work into the back loop only. Unlike other patterns where you might work into the back bars for a neater edge, here you will work single crochets into the back loops of the chains.
Skip the first chain. Insert your hook into the back loop of the second chain from the hook.
Yarn over, pull through to have two loops on the hook, then yarn over again and pull through both loops. This completes one single crochet.
Continue to single crochet in the back loops of every chain across your foundation chain.
End of Row 1 should look like a standard row of single crochets.

Row 2: Beginning the Thermal Stitch

Chain 1 and turn your work. This chain does not count as a stitch.
Here is where the thermal stitch starts to take shape. You'll be working single crochets, but with a twist.
Instead of going through both loops of the stitch at the top, turn your work slightly towards you. You'll work into the back loop of the V from the top AND also into the unused loop (or bar) from the previous row below it.
Insert your hook through these two spots, yarn over and pull through both loops on the stitch, then yarn over again and pull through two loops on your hook to complete the single crochet.
Repeat this for every stitch across.

For Row 3 and Beyond:

Continuing the Thermal Stitch

Chain 1 and turn:

your work, similar to the start of Row 2.
Keep working the thermal stitch as described in Row 2. Remember, you are always working under the back loop of the stitch you're on AND the loop from the row below it.
This row is what you will repeat for the remainder of your project to build up the thermal texture.