Foam formation represents a critical operational challenge throughout the fertilizer supply chain, particularly in phosphate mining and phosphoric acid production. Excessive foaming reduces reactor capacity, compromises mixing efficiency, and leads to inconsistent product quality, which are common issues that can severely limit production capabilities. Water-based defoamers have emerged as advanced, eco-friendly solutions that address these challenges while supporting sustainable manufacturing practices. Water-based defoamers are a new advancement in the field of defoamers for the fertilizer industry that have several advantages over the more traditional oil based defoamers.