Grab your water bottle and fill it with 3-4 inches of water (taller the better as to avoid being in the splash zone)! Hot or cold water— it doesn't matter!
Making sure your larynx is in its resting position, you're going to start with the 10.5 mm "Big Kahuna" straw. Wrap your lips tight around the lip cushion, making sure no air is escaping through your mouth or nose.
Blow air into the straw in a steady stream. Now, give a gentle whoop, like you’re starting a cold car.
If you feel like you’re blowing air into the straw with no resistance, choose a smaller size.
Repeat the above exercises with smaller straws. If you feel tension or squeezing in your throat, choose a larger size.
When you have the correct size, you should feel a gentle expansion in the throat when you blow into the straw. There should be no pain or tension.
The right straw size for you may vary day-to-day. You may need to use a larger size after a difficult vocal session or if your voice is tired. Repeat this process every time you practice with the straw to ensure the right fit.
Still have questions? Check out the diagram below called "Choosing Your Resistance"