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
As this question comes up with great frequency, here's a second posting with a little more information on converting different types of yeast. To convert fresh cake yeast to instant yeast, for 1 packed tablespoon/0.75 ounce cake yeast use 2 teaspoons instant yeast or 2-1/2 teaspoons active dry. 1 teaspoon instant (aka instant active dry)=1-1/4 teaspoons active dry or 1-1/2 packed teaspoons fresh cake yeast. 1 teaspoon of instant yeast or active dry yeast=3.2 grams. Instant yeast can be added directly to the flour without proofing. it is available nationally under the following names: