The Brix scale is a system designed to measure sucrose content or sweetness in foods and beverages. It does this by measuring every 100 grams of content and comparing that to how much sucrose is in those 100 grams. For example, if a food or beverage has one gram of sucrose for every 100 grams of content, it will receive a rating of 1.0 on the Brix scale. If a food has 12 grams of sucrose for every 100 grams of content, it will receive a rating of 12.0 on the Brix scale and so on and so forth. Watermelons vary in their rankings with some varieties considered in the somewhat sweet range of 7.8 to 8.2, while others rank in the very sweet range of 8.3 to 9.0. But the sweetest watermelon variety of all is the Sultan which ranks at an impressive 12.3 on the Brix scale.