Durable plastic pint [16-ounce] bottle of flavoring can make about eight 6-ounce snow cones when you use 2 ounces of syrup. Shelf-stable high fructose corn syrup has a shelf life of 2 to 3 years. Nut-free, no refrigeration necessary, and none of our flavors contain soy, wheat, dairy, starch, flour, or egg products.