A surfactant concentrate is provided an admixture of a phosphonated amphoteric surfactant and a fluorosurfactant. The phosphonated surfactant may be used alone or in admixture with a second phosphonated surfactant, an additional amphoteric surfactant or a Zwitterionic surfactant. The fluorosurfactant may be either anionic, nonionic, or mixtures thereof. The surfactant composition may be used to formulate either a highly caustic detergent concentrate or an acid cleaner. The surfactant concentrate and cleaner made therefrom have a variety of uses. A highly caustic cleaner prepared from a surfactant concentrate is particularly usable in the brewing industry.