Pasteurizer Tunnels (Brewery & Beverage) — Asbestos Exposure Crosswalk
What This Equipment Is
A tunnel pasteurizer is a long conveyor-driven enclosure where sealed bottles or cans pass through a series of hot-water spray zones to heat-kill spoilage organisms in the packaged product. In a large brewery the tunnel can be 60 to 120+ feet long, processing tens of thousands of bottles or cans per hour. Soft-drink, juice, and beverage bottlers use similar equipment.
The tunnel is steam-heated via heat exchangers serving the recirculating hot-water spray system. Steam supply piping, hot-water headers, heat exchangers, condensate-return, and CIP (clean-in-place) piping all run heated and were historically insulated and gasketed using the same asbestos product families documented elsewhere in this catalog.
Asbestos Products Historically Used Around Pasteurizer Tunnels
| Product Category | Where on the Tunnel | Notes |
|---|---|---|
| Pipe covering | Steam supply, condensate return, hot-water headers | Magnesia, calcium silicate |
| Block insulation | Heat-exchanger shells, surge tanks | Calcium silicate, magnesia |
| Gaskets | Heat-exchanger heads, CIP flanges, steam-valve flanges | Asbestos sheet gasket material |
| Valve packing | Steam, hot-water, and CIP valves | Braided asbestos rope packing |
| Steam traps | Drain points on steam supply | See Steam Traps |
| Removable insulation blankets | Around heat-exchangers and frequently accessed valves | Sewn asbestos cloth + asbestos batting |
Why Pasteurizer-Tunnel Work Was an Asbestos Exposure Pathway
Pasteurizer maintenance — heat-exchanger cleaning and tube repair, conveyor maintenance, CIP-system valve work — involves the standard sequence: strip insulation, break gaskets, access internals, rebuild, re-insulate. Pipefitters and brewers’ mechanics performing this work routinely encountered legacy fiber from pre-1980s insulation work.
Manufacturers Named in Litigation Involving These Products
- Krones — packaging-line OEM
- KHS — packaging-line OEM
- Johns-Manville — pipe covering, block insulation
- Owens-Corning / Fibreboard — pipe covering, block insulation
- Armstrong World Industries — calcium silicate insulation
- Garlock Sealing Technologies — gaskets
- A.W. Chesterton — packing
- Crane Co. — valves
Documented Product References
Images sourced from publicly available product-identification reference materials. Inclusion does not constitute a finding of liability against any company.
Trust Funds That May Apply
- Manville Personal Injury Settlement Trust
- Owens-Corning / Fibreboard Asbestos PI Trust
- Armstrong World Industries Asbestos PI Settlement Trust
- Garlock Sealing Technologies LLC Asbestos PI Trust
Trades Most Exposed at Pasteurizer-Tunnel Work
Pipefitters, insulators (Heat & Frost), brewers’ mechanics, packaging-line mechanics, plant operators handling routine maintenance.
Jobsites in the Network
- Anheuser-Busch Brewery, St. Louis, Missouri
- Other Missouri industrial breweries and beverage plants in the network
- See companion pages: Brew Kettles, Heat Exchangers, Steam Traps
Compiled from publicly filed asbestos litigation, EPA / state-DNR records, and industry-publication histories. Product and company references reflect what has been alleged or documented in publicly filed litigation. This page does not constitute a finding of liability against any company. Not legal advice; consult a licensed attorney about your specific situation.