The prime object of aseptic work is to keep the products being processed free from microbial contamination. The following precautions should always be observed in aseptic work.

i) Whenever possible, a non-touch technique should be used.

ii) Air disturbance should be minimum.

iii) Interruption should be minimum.

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iv) There should be a program for maintenance of the area and the personnel.

v) Only trained personnel should perform aseptic work.

vi) Frequent tests should be performed in the aseptic area to monitor the level of contamination.

vii) Whenever contamination is detected, the sources should be identified and dealt with accordingly.

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vii) After the aseptic work is over, the product should be removed to quarantine and aseptic area should be thoroughly cleaned, disinfected and kept ready for next operation.