Guide
Manufacturing bottlenecks from clinical to commercial
Throughput follows the tightest constraint across USP, DSP, QC, and staffed capacity. Buying more steel in one lane while another starves is how CapEx goes idle and cash burns.
Think in matched lanes
Upstream volume without downstream purification capacity creates WIP and expires assumptions. DSP without QC release capacity creates inventory that cannot ship. People who cannot cover the iron create the same bottleneck with a softer name: overtime and deviations.
Cash lands at release
Until a batch clears QC, it is cost — not revenue. Teams that celebrate bioreactor success while release queues grow often discover the P&L too late.
Practice the tension
Line Balance Lab is a short cartoon lab for the same balance craft. For a structured read on your plant, take the scorecard or check fit for BiOS's $4,500 Operational Scale-Up Assessment — a working decision tool, not only a PDF.