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
Potholders
Baskets
Bags
PIN FOR LATER

MATERIALS & TOOLS NEEDED
Yarn: I used MillaMia Naturally Soft Aran.
Hook: Hook to match yarn and your desired gauge. I used a 5mm.
Scissors
Darning Needle
PATTERN NOTES
Written in UK terms
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.
CROCHET TERMS
Chain (ch): Yarn over, pull through one loop on hook
Double Crochet (dc): Insert hook into stitch, yarn over, pull through two loops (2 loops on hook), yarn over, pull through both loops.
Slip Stitch (ss): Insert hook into stitch, yarn over, pull yarn through stitch and loop on hook
Stitch(es) (st(s))
SPECIAL STITCHES
STS– Starting thermal stitch. Insert hook into back loop only of next stitch PLUS the unworked chain on foundation chain. Yarn over hook, pull through two loops on hook. Yarn over hook and pull through remaining loops.
TS– Thermal Stitch. Insert hook into back loop only of next stitch PLUS the unworked stitch on the row below. Yarn over hook, pull through two loops on hook. Yarn over hook and pull through remaining loops.
CTS– Closing thermal Stitch. Insert hook into next stitch PLUS the unworked stitch on the row below. Yarn over hook, pull through two loops on hook. Yarn over hook 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 ‘How to crochet: A handy reference guide’ 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
Chain to desired length plus 2
Row 1: Dc in back loop of 2nd ch from hook and across chain. Turn.
Row 2: Ch 1 (does not count as st here or throughout) STS in first st and across. Turn
Row 3: Ch 1, TS in first st and across
Repeat row 3 until you reach your desired height.
Final Row: Ch 1, CTS in first st and across.
VIDEO TUTORIAL
Below you can find the left and right handed version of this tutorial. Don’t forget to subscribe to my channel 🙂
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15 Comments
Miranda
November 21, 2020 at 6:08 amCan this stitch be worked into an infinity scarf?
BellaCocoTeam
November 23, 2020 at 6:02 pmHi Miranda Yes, you would just need to work one long rectangle before sewing it together
Anita
February 22, 2021 at 4:13 pmWhat about the hdc with the Thermal stitch?
BellaCocoTeam
February 23, 2021 at 9:15 amHi Anita I’ve not tried that variation but you would just need to yarn over before inserting your hook into the stitches
Isabelle
March 24, 2021 at 5:28 pmCould this stitch be used for a temperature blanket?
BellaCocoTeam
March 29, 2021 at 6:14 pmHi 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.
Kari
December 28, 2021 at 11:57 pmCan thus stitch be done into a hat?
BellaCocoTeam
January 6, 2022 at 11:36 amThis 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
Jessica
November 16, 2021 at 11:18 pmLove this stitch! How do you get such neat edges? I’m not sure which stitches to go in at the end of each row.
BellaCocoTeam
November 17, 2021 at 10:29 amHi Jessica maybe this tutorial will be of help to you:- https://youtu.be/YA46KLsg9LM 🙂
Christina
January 20, 2022 at 4:42 pmWhat are recommended applications for this stitch?
BellaCocoTeam
January 26, 2022 at 7:23 pmHi Christina Thermal stitch gives a lovely dense, sturdy fabric that’s perfect for pot holders and bags, and other projects that require structure
Marilyn
February 11, 2022 at 2:09 amI 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.
Diane
April 11, 2023 at 5:48 pmIs it possible to increase and decrease in the thermal stitch? If so, how?? thank you so much
BellaCocoTeam
April 21, 2023 at 8:44 pmI 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)