Alternatively, if you feel like you may get confused as what side is front or back of the button when unkinking the thread, you can hold the button and let the thread and needle dangle to unwind. I actually do this often when I'm doing sashiko embroidery.

oh that is so cool! thank you!

I learned this loop method via Irish Lace crochet. You can make a very firm button - great for shirt buttons. Thanks for this video. It is fun.

Any chance you could show various other button types? I’m curious about fabric covered ones

Very clear tutorial! Thanks from Ottawa, Ontario Canada!