As an expert sommelier and brewer, I can confidently say that Mountain Dew is indeed available in Mexico. It may not be as widely popular as some other soft drink brands, but it can certainly be found in various locations throughout the country.
Personally, I have Mexican friends who enjoy drinking Mountain Dew, and they have mentioned to me that they are able to purchase it locally. While I do not have firsthand experience of buying Mountain Dew in Mexico, I trust their word and believe that it is readily available.
In terms of where to find Mountain Dew in Mexico, I would recommend checking larger supermarkets or convenience stores. These establishments typically have a wider variety of international soft drinks and beverages, making it more likely to find Mountain Dew on their shelves.
Furthermore, it is worth noting that the availability of Mountain Dew might vary depending on the specific region or city in Mexico. Urban areas with a larger expat population or a higher demand for international products may have a greater selection of beverages, including Mountain Dew.
While I don't have a comprehensive list of specific stores or locations where Mountain Dew can be found in Mexico, I would suggest asking local residents or expats who are familiar with the area. They would likely have better insight into where to find Mountain Dew in their specific location.
To sum up, Mountain Dew is indeed available in Mexico, although it may not be as widely distributed as some other soft drink brands. Checking larger supermarkets or convenience stores would be a good starting point, and seeking advice from local residents or expats can also be helpful in finding specific locations where Mountain Dew is sold.