Changing colors

I was wondering… I want to use the double knit in join method to switch colors. But its a big project so can I just leave extra after the join to use as my intarsia yarn?
Thanks
sis

I’m not sure I understand what you’re saying. I don’t know what you mean by ‘double knit join’. And what pattern is it…does it have intarsia?

Double knit in join is a way of hiding yarn ends. You loop the new yarn over the old & fold back making 2 double strands on each end. Then knit with those double thick parts as usual. The stitches are fatter. But the ends get worked in as you go. There is a video under the banner somewhere.

The tricky part with intarsia is to leave the right amount of color one before doubling over the yarn. You can guess by wrapping it over the needle to judge length.

Sissy, you can use this to add in a new color. You will still have one working end in that color to use later.