Are you ready to learn one of the warmest crochet stitches around? Seriously, this stitch makes a wonderfully thick, sturdy fabric that’s perfect for projects that need a bit of extra OOMPH. If you’re looking for a way to add weight and warmth to a crochet project, you’ll love this Winter warmer. Perfect for making thick projects like potholders or sturdy bags and basket, it’s the coolest cold weather stitch you can learn. Ready to learn how to crochet the Thermal Stitch?
Pattern Use Ideas
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Materials and Tools
Yarn: I used MillaMia Naturally Soft Aran.
Hook: Hook to match yarn and your desired gauge. I used a 5mm.
Pattern Notes
Written in UK terms but switchable to US terms below.
Skill Level: Intermediate
Stitch Multiple: 1 + 2
This pattern gives you the basic principles for the Thermal Stitch, designed to help you create your own projects.
The video tutorial can be found at the base of the post.
Convert Pattern Terms
Here you can quickly switch between UK and US crochet terms. This will make following the pattern easier as all terms will be converted to your preferred version.
Terms & Abbreviations
Chain(s): ch(s): Yarn over, pull through loop on the hook.
Slip Stitch(s): ss(s): Insert hook, yarn over, pull through stitch and loop on hook.
Double Crochet(s): dc(s): Insert hook into stitch, yarn over, pull up a loop, you will have two loops on the hook. Yarn over, pull through remaining two loops.
Back Loop Only: BLO: Working into the back loop only of the stitch.
Special Stitches
Starting Thermal Stitch (SThs): Insert hook into BLO of next st PLUS the unworked ch on foundation ch, yo and pull up a loop, yo and pull through rem loops.
Thermal Stitch (Ths): Insert hook into BLO of next st PLUS the unworked loop on the row below, yo and pull up a loop, yo and pull through rem loops.
Closing Thermal Stitch (CThs): Insert hook into both loops of next st PLUS the unworked loop on the row below, yo and pull up a loop, yo and pull through remaining loops.
Unsure of the differences between UK and US terms? Need a refresher on how to do your stitches? In my āHow to crochet: A handy reference guideā EBook I help you with all of these terms and you can always have them to hand! You will also get exclusive access to free video instructions. Learn more about the eBook here.
Thermal Stitch Pattern
You are viewing this pattern in UK terms.
Chain in multiples of 1 + 2
Row 1: dc in BLO of second ch from hook (skipped ch does not count as st), dc in BLO of each ch across. Turn.
Row 2: 1 ch (does not count as st), SThs in each st across. Turn.
Row 3: 1 ch, Ths in each st across. Turn.
Rep Row 3 until desired height.
Final Row: 1 ch, CThs in each st across. Fasten off and sew in ends.
Video Tutorial
Right-handed
[adthrive-in-post-video-player video-id=”9E1gskmP” upload-date=”2025-03-27T12:07:28+00:00″ name=”HOW TO CROCHET THE THERMAL STITCH | EASY TUTORIAL | Bella Coco Crochet.mp4″ description=”null” player-type=”default” override-embed=”default”]Or you can watch on YouTube
Left-handed
[adthrive-in-post-video-player video-id=”rjdC9iGy” upload-date=”2025-03-27T12:07:28+00:00″ name=”LEFT HANDED CROCHET_ THERMAL STITCH | EASY TUTORIAL | Bella Coco Crochet.mp4″ description=”null” player-type=”default” override-embed=”default”]Or you can watch on YouTube
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Can this stitch be worked into an infinity scarf?
Hi Miranda Yes, you would just need to work one long rectangle before sewing it together
What about the hdc with the Thermal stitch?
Hi Anita I’ve not tried that variation but you would just need to yarn over before inserting your hook into the stitches
Could this stitch be used for a temperature blanket?
Hi Isabelle You could, but I would make a small swatch first to make sure you’re happy with how it looks when it’s striped A great alternative would be moss stitch/linen stitch.
Can thus stitch be done into a hat?
This is quite a dense stitch so it will be nice and warm for a hat, but it does work up quite stiff so that’s something to bear in mind
Love this stitch! How do you get such neat edges? Iām not sure which stitches to go in at the end of each row.
Hi Jessica maybe this tutorial will be of help to you:- https://youtu.be/YA46KLsg9LM š
What are recommended applications for this stitch?
Hi Christina Thermal stitch gives a lovely dense, sturdy fabric that’s perfect for pot holders and bags, and other projects that require structure
I have been using this stitch with strips of nylon netting to make square scrubbies. I love them, they hold up so much better than the circular scrubbies you usually see. I also make the cotton pots holders.
Is it possible to increase and decrease in the thermal stitch? If so, how?? thank you so much
I would increase and decrease this stitch as you would a regular stitch by working two stitches into one to increase, and working two together to decrease (to work two together you should begin your stitch as normal, however, before yarning over and pulling through both loops on the hook to complete the stitch, you should insert you hook and begin the next stitch)