Conditioning the thread
When doing blind stitching, attaching buttons, or making buttonholes by hand, are you getting stressed out by the tangled threads?
You can easily solve the problem using beeswax and an iron.
Not only does it relieve stress, but by coating the thread, it becomes stronger and it is also possible to achieve beautiful, glossy seams.
It's a loss if you don't do it!
※Using a sewing machine with wax-coated thread is strictly prohibited as it can cause the machine to break down.
【trivia】
Threads have a twist to them. In general, hand-sewn threads are S-twisted, and machine threads are Z-twisted.
If you use Z-twist sewing thread for hand sewing, the thread will become untwisted while you are sewing.
For this reason, it is common practice not to use sewing machine thread and hand-sewing thread together.（It's not that it's absolutely not allowed.）