- Cotton Plug can define as a small piece of absorbent cotton that used to close the opening of glass tubes, culture flasks, test tubes, pipettes, etc., mainly during sterilization or culture works.
- It made from absorbent cotton wool rolled tightly so that it fit in the mouth of container, sometimes wrapped with gauze or muslin cloth for more firmness.
- The main purpose of cotton plug is to prevent entry of microorganisms, dust or spores from air while still allowing…
