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Aseptic techniques ensure the microorganisms being investigated do not escape or become contaminated with an unwanted microorganism.

The growth of unwanted, pathogenic microorganisms is also prevented.

Aseptic techniques include:

• No eating or drinking in the lab.
• Wiping bench with disinfectant/alcohol.
• Not growing microorganisms at body temperature.
• Using sterile loops when transferring cultures.
• Flaming culture bottle necks to prevent contamination.
• Sterilising (using an autoclave) or disposing of all used equipment.
• Washing hands thoroughly