The good news for tourists is that, as in the past warning, most popular areas (including Cancun, the Riviera Maya, Mexico City, Los Cabos, Riviera Nayarit, Puerto Vallerta, San Miguel de Allende, Guanajuato, Merida, Chichen Itza, Huatulco and Oaxaca) are exempted.
Super Chill Mountain Chill Soda Ingredients Carbonated Water, High Fructose Corn Syrup, Orange Juice From Concentrate With Other Natural Flavors, Citric Acid, Potassium Benzoate (A Preservative), Gum Acacia, Potassium Citrate, Caffeine, Calcium Disodium Edta (To Protect Flavor), Yellow 5, Brominated Vegetable Oil
1 Make one half-batch following the baking powder recipe (or your own halved recipe) above, and then four additional half batches, substituting the following amounts of cream of tartar and baking soda: 2  0 teaspoons cream of tartar, 3/4 teaspoons baking soda,  1 teaspoon cream of tartar, 1/2 teaspoon baking soda,