Packaging, bottling, and canning operations generate significant occupational noise from high-speed machinery, compressed air systems, and metal-on-metal contact at conveyors and seamers. Can seamers and glass filler operations routinely exceed OSHA's 90 dBA PEL. Compressed air blow-off systems — used extensively for cleaning and drying — are often the highest-impact low-cost noise reduction opportunity in packaging facilities. According to CDC/NIOSH, approximately 22 million U.S. workers are exposed to hazardous occupational noise annually.
Soundtrace delivers in-house audiometric testing and noise monitoring for packaging & bottling operations — ANSI S3.1-compliant, automated STS detection, and licensed audiologist review.
Noise Sources and TWA Ranges
| Equipment / Process | Typical Level | Typical 8-hr TWA | OSHA Status |
|---|---|---|---|
| Glass bottle filler / seamer | 90–105 dBA | 88–98 dBA | At or above PEL |
| Can seamer (high-speed) | 95–110 dBA | 92–102 dBA | Exceeds PEL |
| Compressed air blow-off / cleaning | 95–110 dBA | 90–102 dBA | Exceeds PEL — often reducible with low-noise nozzles |
| Labeling and coding machines | 80–95 dBA | 82–92 dBA | At or above action level on high-speed lines |
| Conveyor and transfer systems | 82–95 dBA | 82–92 dBA | At or above action level on metal conveyors |
| Palletizer / depalletizer | 85–100 dBA | 85–95 dBA | At or above action level |
| Case packer / erector | 85–95 dBA | 85–92 dBA | At or above action level |
OSHA 1910.95 Requirements
All packaging & bottling workers at or above the 85 dBA action level must be enrolled in the full six-element OSHA 1910.95 hearing conservation program. Workers above the 90 dBA PEL require documented engineering controls assessment. The most commonly cited violations across all industries are identical: late baseline audiograms, annual audiogram schedule failures, and inadequate HPD for actual exposure levels. See: audiometric testing for employers: complete guide and OSHA noise monitoring requirements.
| Violation Type | Frequency | Typical Penalty |
|---|---|---|
| Late or missing baseline audiograms | Very high — most common | $2,000–$7,000 |
| Annual audiogram schedule failures | High | $2,000–$7,000 |
| No noise monitoring (assumed below AL) | High | $1,000–$5,000 |
| No engineering controls assessment above PEL | Moderate | $3,000–$9,000 |
| Missing training records | High | $1,000–$4,000 |
Compressed air: the easiest engineering control
Compressed air blow-off nozzles generate 95–110 dBA and are pervasive in packaging operations for cleaning, drying, and product handling. Replacing standard open-pipe blow-offs with engineered low-noise nozzles typically reduces noise levels 5–15 dB at the source for minimal cost. This is one of the few engineering noise controls in packaging that is both highly effective and economically feasible — OSHA expects employers to have evaluated and implemented this control where applicable.
Glass vs. metal container noise profiles
Glass bottling operations generate impact noise from bottle-to-bottle contact, filler/seamer operations, and conveyor transfers that is distinct from metal can seaming noise. Glass breakage events create extreme short-duration noise spikes. Metal can operations generate sustained high-level seamer noise throughout production. Both require monitoring, but the noise sources and control opportunities differ.
Shift coverage for 24/7 bottling operations
High-speed bottling and canning lines typically run 16–24 hours per day to maximize throughput. The HCP must cover all shifts, with annual audiograms tracked to each individual worker's 12-month deadline rather than a single annual mobile van visit date.
Workers’ Compensation Defense
Occupational hearing loss WC claims in packaging & bottling follow the same pattern as other industries: claims arrive years after exposure begins, requiring complete audiometric records from hire to claim date for apportionment. A pre-employment baseline audiogram is the most critical single document — without it, the employer cannot demonstrate what hearing the worker had on day one. See: workers’ compensation for occupational hearing loss: 50-state guide.
Audiometric records must be retained for the duration of employment. Occupational health attorneys recommend 30 years beyond separation for long-tenure workers. Records held exclusively by a mobile van vendor are at risk if the vendor relationship ends. Cloud-based retention with documented chain of custody is the only reliable long-term solution.
In-house audiometric testing for packaging & bottling operations
Soundtrace delivers OSHA-compliant audiometric testing and noise monitoring for packaging & bottling employers — automated STS detection, 30-year cloud retention, and licensed audiologist supervision.
Get a Free Quote Book a demo →Frequently Asked Questions
Yes. OSHA 29 CFR 1910.95 applies as general industry. All workers with 8-hour TWA exposures at or above 85 dBA must be enrolled in the full six-element hearing conservation program. Workers above the 90 dBA PEL also require a documented engineering controls feasibility assessment.
Glass bottle filler / seamer (90–105 dBA) and Can seamer (high-speed) (95–110 dBA) are typically the highest noise sources. Typical 8-hour TWAs for workers in these areas: 88–98 dBA and 92–102 dBA respectively. Both require enrolled workers, ANSI-compliant audiometric testing, and confirmed HPD adequacy.
OSHA requires audiometric records for the duration of employment. Occupational health attorneys recommend 30 years beyond separation for workers with long-tenure noise exposure histories, given the latency of occupational hearing loss WC claims.