Asking the 5 W's for designing next‐generation bioprocessing

Abstract Biotechnology is expanding beyond traditional, centralized fermentation and toward next‐generation bioprocessing paradigms that emphasize flexible deployment outside the laboratory with application‐specific performance. However, many bioprocesses fail to translate beyond proof‐of‐concept into industrially viable systems because early design decisions are often misaligned with economic, operational, and temporal constraints. In this perspective, we propose the systematic use of the traditional “5 W” questions (Who, What, Where, Why, and When) as a unifying framework for guiding the design of next‐generation bioprocesses. Rather than serving as a checklist, the 5 W's function as a design lens to interrogate host selection, yield constraints, deployment context, purpose, and timing of bioprocesses. Through examples spanning conventional and non‐conventional bioprocesses, we illustrate how neglecting these considerations can yield technically elegant yet operationally irrelevant systems. We argue that early qualitative framing through the 5 W's can reduce costly redesign and accelerate translation of next‐generation biotechnology into industrially relevant applications.