Save electricity and don't fill your cup up to the top. 1 CBW ( cup of boiling water) is overkill.
When dissolving your dye particles in boiling water you only need to use a few tablespoons at most 1/4 cup.
Top it up with cool water, it is safer to handle too.
Replace vinegar with citric acid crystals for fume free dyeing.
Don't be tense when dyeing, put on your "happy " music.
Make something perfectly nice, then think about how to make it glorious.
Enjoy the adventure of it.