This is a fast way that helped me keep my sparkling disposition to this very day.
Step 1: Mix and Shake
I chose a Hemp Non-Dairy Beverage by Pacific Foods. The package says "refrigerate after opening". I did roll the dice, in the Arizona sun, but it kept just fine for 4 days in a well insolated backpack.
All I did was mix in a water bottle, place the lid, and shake.