Identify red and sweet watermelon without cutting: Summer is synonymous with the watermelon season. While you can witness many watermelon vendors on the roadside, it is always a struggle to identify which watermelon is the most red, sweet, and juiciest. Only when a watermelon is sweet, it tastes good. Otherwise, there is no joy in eating watermelon on a summer day. So it is very important to know how to pick the perfect fruit. Here are some tips that help you to identify whether the watermelon is sweet or not.