Our Take
Seal failures are a machinery and process problem, not a regulatory one—most recalls stem from equipment chosen for cost, not 24/7 duty, paired with weak operator training.
Why it matters
A single seal failure contaminates an entire batch and triggers recalls that damage reputation and erode supply chain trust. Pharma manufacturers now face regulatory pressure to validate every parameter across every package.
Do this week
Packaging engineers: audit your current sealer specifications against ISO 11607 part 1 requirements and document which critical parameters (speed, pressure, temperature) you monitor for every unit produced—gaps here are batch-risk gaps.
Seal quality failures drive batch recalls in pharma packaging
Pharmaceutical manufacturers depend on sterile packaging barriers to protect medical devices from contamination during transport and storage. When seals fail, entire batches become at-risk for recall, regardless of the device quality inside. The regulatory framework governing medical device packaging—primarily ISO 11607 parts 1 and 2, recognized by the FDA and EU Medical Device Regulation—mandates that packaging systems allow sterilization, provide a microbial barrier, and enable aseptic presentation at point of use.
Yet meeting these standards on paper does not prevent failures in the field. According to Jackie Irvine, senior manager of marketing and sustainability at Plexpack, one of the most common causes of seal failure is selecting machinery not designed for continuous 24/7 operation. A second failure mode is equipment manufactured without components necessary to maintain seal integrity consistently. When operator error layers on top—poor training, poorly designed controls—even reliable machinery cannot guarantee repeatable results.
Equipment choice and process control are the real gatekeepers
Regulatory compliance is necessary but insufficient. The difference between a batch that passes validation and one that fails in the field lies in two controllable factors: the machinery you buy and the systems you deploy to monitor it.
Modern packaging lines address this through three concrete practices. First, equipment selection now favors impulse-style sealers with fully controllable heat settings, allowing operators to maintain validated parameters and reduce variability. Second, vision systems integrated with sealers detect contaminated seals or foreign materials in real time and reject improperly processed bags without human intervention. Third, manufacturers are increasingly adopting automated monitoring systems that track critical operating parameters—machine speed, seal pressure, temperature—for every package processed. This level of granular control enables manufacturers to identify deviations before they compromise batches.
Equipment supplier selection carries outsized weight. Irvine emphasizes evaluating vendor reputation, length of experience in medical device manufacturing, and customer testimonials. Centralised decision-making, where one procurement choice affects multiple facilities, makes this vetting especially critical. A poor equipment choice deployed across an enterprise multiplies both the validation burden and recall risk.
What manufacturers should validate now
Batch integrity depends on three operational decisions made before production begins. First, select equipment explicitly designed for the duty cycle your facility runs—24/7 or shift-based—and confirm it has the components necessary to maintain seal integrity without drift. Second, implement automated parameter monitoring for every critical variable specified in your validation protocol; manual spot-checks are not sufficient. Third, establish a vendor evaluation process that prioritizes proven track record in medical device manufacturing over cost savings.
Manufacturers rolling out equipment across multiple sites should sequence implementation carefully, ensuring consistent operator training and accounting for downtime during installation. The cost of a recalled batch far exceeds the cost of over-specifying equipment upfront.