By Malcolm McLaughlin
The benefits of employing aqueous cleaning in pharmaceutical manufacturing are numerous. Virtually any pharmaceutical manufacturing equipment from tablet press to a stainless steel mixing tank can achieve their defined critically clean criteria using aqueous cleaning. Typically aqueous cleaners are formulated to ensure maximal cleaning performance by using key ingredients such as surface active agents (surfactants) that are excellent wetting agents that allow the cleaning solution to penetrate into crevices while getting under soils to allow for removal. Often very dilute solutions of aqueous cleaner effectively removes even worst case substances off a variety of hard surfaces including stainless steel, glass, plastic, or porcelain.