Frenz i want detailed info abt retort packaging.. Further d advantgs n limitat'ns, retorting process, its demands in India n abroad also its affection to d product that it contains... Plz inform or suggest any link or book.. Thank u..

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Hi,

Retorting is oldest technology and has developed a lot in last century.

PROCESS

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There are different types of retorting system

a. Steam Air Process

Temperature Come-up and Holding Time:
Steam is automatically & directly injected into the retort chamber and is properly distributed; a fan agitating air with efficiency enables to get a uniform steam/air distribution in the entire retort chamber in order to guarantee good temperature accuracy during the holding time.

Cooling Step:
- The cooling is obtained with recirculated water cooled by fresh water or via a Plate Heat Exchanger.

- Recirculated water comes from steam condensates to which is added an amount of pre-cooling water. The addition of cold water is automatically and gradually got in order to eliminate the "thermal shock" and control temperature for ramping down. 

During all the Heat & Cooling steps, the electronic process controller monitors temperature and pressure inside the retort chamber. More information

B. FULL WATER IMMERSION / TECHNOLOGY


Temperature come-up and holding time steps

- A volume of preheated water at a pre-determined temperature is stored in a tank above the retort and is transferred into the treatment retort chamber (total immersion of the packaging)

- This amount of water is circulated by a pump and is heated by steam for maintaining a constant temperature during the desired treatment.

- Temperature control (steam injection in the exchanger) and pressure (injection or venting of compressed-air) are automatically and independently controlled, according to the programme settings of "Tables of set values".

Cooling step

A part of the hot water is put back into the tank (energy saving). The rest of the process water continues to be recirculated and is cooled through a heat exchanger.

During all the Heat & Cooling steps, the electronic process controller monitors temperature and pressure inside the retort chamber. More information.

immersion

C. Hot Water Spray / Technology

A low amount of water is kept in the bottom of the retort chamber. During all the process cycle (sterilisation & cooling) this amount of water is recirculated by a high flow rate pump and uniformly distributed with one inlet per basket. Heating and cooling of this water is made through a plate heat exchanger. A process controller actuates steam and water valves. During all the Heat & Cooling steps, the electronic process controller monitors temperature and pressure inside the retort chamber. More information

Thank u Sir very much...

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