Heat 2 cups canola oil in a medium pot over medium-high heat until a deep-fry thermometer registers 325 degrees F. Pat dry one 10-ounce bag shredded carrots with paper towels. Working in batches, carefully fry the carrots, stirring occasionally, until crispy, 3 to 4 minutes. Remove with a slotted spoon to a paper towel-lined plate. Put 2 teaspoons cider vinegar in a food-safe spray bottle and spray the carrots. Sprinkle with salt, 2 tablespoons chopped mint and 1 teaspoon orange zest.