How to spit splice yarn

A step-by-step tutorial on the spit splice. An easy method to join a new ball without any knots suitable for beginners.

Most commercial yarn comes in skeins of 50 or 100 grams. While that can be enough to knit socks or a hat, bigger knitting projects will need more than just one ball. And whenever you have to join in a new yarn, you also end up with two tails you need to weave in later on. But there is an easy way to avoid that. Here’s how to spit splice yarn.

The spit splice, sometimes also called wet splice or felted splice is an ingenious method to join in a new ball by felting the two ends together in the palm of your hands. It’s a more or less waste-free technique that is both super fast and easy. Sadly, it doesn’t work with all yarns.

Reading tip: Read my tutorial on the magic knot. It is just as simple and works for plant-based fibers as well. Or try the Russian join.

Which fibers can you spit splice?

This joining method only works on protein fibers. This means you cannot spit splice acrylic yarn or flax. But it will be perfect for merino wool, cashmere, alpaca, camel hair yarn, yak yarn, etc. Basically, if you can felt it, you can also spit splice it. That means, quite a lot of silk yarns can also be spit spliced.

The only exception is superwash yarns. These fibers have been chemically treated to prevent felting and thus they cannot be joined with this method.

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Instructions: how to spit splice yarn

someone holding up two ends to join them with the spit splice

You will need a sufficiently long tail of around 5 inches. Breaking the yarn instead of cutting it can be an advantage for it creates a somewhat tapered end.

Active Time 1 minute
Total Time 1 minute


  1. Pick apart the two ends you want to join so they look a bit like a small fan. If you are working with a plied yarn then pick apart the plies first. 1 inch on either side will be enough.

    picking apart the two ends so they look a bit like a fan
  2. Take your scissors, and carefully thin out both ends by around a third.

    thinning out ends before spit splice to avoid a visibly thicker section

    Note: You do this to avoid a visibly thicker section of yarn in your knitting. After all, you are stacking two ends on top of each other and the resulting join would be twice as thick.
  3. Put both ends in your mouth to wet them (or use water, but I heard that the enzymes in the saliva facilitate the felting process).

    putting the two ends in water to soak them through
  4. Stack the two ends on top of each other and put the yarn in the palm of your hand.

    stacking the ends on top of each other in the palm of your hands
  5. Place your other hand on top and rub your hands really fast with quite a bit of pressure. You should notice how they get warm.

    rubbing the hands together with the join in between to felt it together
  6. Do that for about 10-20 seconds. The two ends should be joined together firmly. Now you can continue knitting as normal.

    knitting yarn join with the spit splice method


I recommend testing the strength of your join gently before you start knitting. Some yarns just resist this process for some reason - even though it should, theoretically speaking, work.

Instead of stacking the two ends on top of each other, you can also loop the two ends back on each other. This will create a cleaner join when using skeins of yarn in different colors. This method is called “Trim, overlap, and felt“. It’s a bit more fiddly but a lot neater and secure.

It does have to be said, however, that this is not the most ideal joining method for colorwork regardless since it’s quite difficult to estimate the exact position of the transition. Check out this tutorial on how to change colors in case you are interested for some viable alternatives.

Some people will also place the two ends in their hands, and then they’ll wet their palms (either by licking them or sprinkling a bit of water across). I personally find it’s a bit easier to wet the ends first as the join will be a bit more secure that way. But do whatever you feel makes more sense to you.

Anyway, that’s how to spit splice yarn. Feel free to comment below in case you have any further questions

how to join yarn with spit splice knitting technique

3 thoughts on “How to spit splice yarn”

  1. This worked great, especially since I was looking to join rasta skeins too! I lost some color in the joined section though, so I think one needs to focus on keeping the more pigmented parts of the split fibers involved when you cut off the excess before joining.

  2. Hi. Thank you for all of your great tips and lessons. I just wondered if this method would work for a yarn that is 51% wool and 49% acrylic? Sorry if that is a silly question 🙂


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