Technology

Retort Sterilization

What It Does

Sterilizes sealed, packaged food by holding a validated time/temperature/pressure cycle — via water spray, water immersion, pure steam or rotary agitation — until commercial sterility is reached.

Suitable Applications

— Canned foods
— Retort pouches
— Glass-jar preserved foods
— Sealed spice packaging

Not the same as: Retort sterilization is not the same as pasteurization. Pasteurization reduces microbial load to extend shelf life under refrigeration; retort sterilization targets commercial sterility for ambient, shelf-stable storage. We don't yet have standalone pasteurization equipment documented locally.

See It In Operation

Relevant Equipment

Equipment for this process

Water Spray Retort Sterilizer

3293x1277x1828mm, 853kg, 240 jars/batch, SS304, CBM 7.9; 12 frame sizes DN600-DN1500 in spec sheet

Water Immersion (Double-Layer Water Bath) Retort

4828x2119x3314mm, 2100kg, ~720 pouches/batch, SS304, CBM 34; 12 frame sizes in spec sheet

Photo available on request

Pure Steam Retort

10 frame sizes DN1000-DN1500 in spec sheet, 0.35MPa/147C

Rotary Retort

ZonGon rotary retort flyer (zongonretort.com), full spec table, 2 documented models (1200/1400): length 3000-4000mm, volume 3.79-6.77 m3, wall thickness 5-6mm, power 11.5-16.5kW, design pressure 0.35MPa, design temperature 147C; other sizes customizable. Real product photo showing rotating basket/carrier inserts. Also documented separately: 6 frame sizes 1400x4000 to 1600x5000mm from an earlier quotation.

Spice Steam Sterilization Retort

Article no. ZG-QP-12-20; multi-stage vacuum + hot/humid steam process; documented Indonesian cinnamon/pepper case

Pilot-Scale Test Retort

ZonGon flyer (zongonretort.com), full spec table: inner diameter/tube length 600x600mm, volume ~0.23m3, steam/electric heating, water-spray sterilization, max work pressure 0.3MPa (design 0.35MPa), max work temp 130C (design 147C), control box power 3.3kW (+18/36kW options), 380V 3-phase/50Hz, SUS304, 4mm body thickness. A compact spray-type retort sized for R&D / recipe validation runs rather than production volume.

Relevant solutions

Complete solutions using this process

Retort-Sterilized Foods

Canned and retort-pouch sterilization — water spray, water immersion, steam and rotary retort systems built on SS304 pressure vessels.

Spice Sterilization

Multi-stage vacuum plus hot/humid steam sterilization for whole and ground spices, with a documented Indonesian cinnamon and pepper case.

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