Each sample of fruit or vegetable is manually inserted into the treatment chamber of the VSV processor. A computer-controlled servomotor is used to rotate the ball valve 90° to seal the chamber from the atmosphere. The platter valves rotate to expose alternately the sample to vacuum, then steam, and then vacuum again. With multiple cycles, the sequence of vacuum, then steam, is repeated multiple times. After treatment, the ball valve rotates back 90° to expose the sample to the atmosphere. After treatment, the fruit or vegetable sample is removed manually with sterile gloves.
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