To sterilize tuna in an autoclave, it is necessary to adjust the temperature, pressure and sterilization time. Here are the recommended parameters for sterilizing tuna in an autoclave:
- Temperature: 113-115 °C
- Pressure: 10-12 lb/in2
- Sterilization time: depends on the size of the container and the type of tuna, as indicated below:
Container size | Sterilization time
— | —
Tuna N°1 : 90-100 minutes
Tuna N°2 : 70-80 minutes
Tuna N°3 : 60-70 minutes
Tuna N°4 : 160-180 minutes
1/2 lb tuna fish | 60-65 minutes
1 lb of tall tuna | 80-90 minutes
1 lb of tuna oval | 80-90 minutes
It is important to bear in mind that these parameters may vary according to the type of tuna and the size of the container, so it is always advisable to follow the manufacturer’s instructions and carry out tests to determine the optimum parameters for each product.
Once the autoclave parameters have been adjusted, the tuna should be placed in the appropriate containers and hermetically sealed. The containers are then placed in the autoclave and the sterilization process begins. Once the process is finished, the tuna must be cooled quickly to prevent the proliferation of microorganisms. For this purpose, it is recommended to use chlorinated water with a free chlorine residual of 0.5 to 2.0 ppm or similar after contact with the containers.
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