You won't need the vinegar because your stomach acid is enough. Mix the baking soda with an equal amount of water and place it in your mouth at the very back. If it touches your tongue you will taste it, so use a spoon to pour it in, back as far as possible.
You should release a stupendous belch in about 15 seconds. Record the event and see how far you can belch the alphabet. Have a contest with your friends and post the winning video.
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