An optimization system includes a) one or more processors; b) a loop search engine configured to perform a loop search based on a random blending ratio of blending components for at least a product, and to generate a first optimized blending ratio; and c) a local search engine configured to perform a local search based on the first optimized blending ratio, and to generate a second optimized blending ratio. The loop search engine and the local search engine are implemented on the one or more processors.