In Europe alone, each year hundreds of million tons of valuable materials are lost in industrial processing. To increase the yield of these processes, it is important to reduce and/or valorise waste streams. Therefore, various processes that involve the use of alcohols as (anti)solvents and the application of pH switches to recover and purify valuable compounds from waste streams in the biotech and chemical industry have been developed. However, the recovery of (anti)solvents using conventional techniques like distillation requires large amounts of energy.