Proper cleaning is essential to maintain the accuracy and reliability of laboratory glassware. Here's a step-by-step guide on how to clean an Erlenmeyer flask:

1. Rinse:Rinse the flask with water to remove any visible residue.
2. Wash:Use a laboratory detergent and a brush to scrub the inside and outside of the flask. Pay attention to any residue or stains.
3. Rinse:Rinse the flask thoroughly with distilled water to remove any detergent residue.
4. Dry:Allow the flask to air dry upside down on a clean rack. This will help prevent water spots and contaminants from entering the flask.

If the flask is contaminated with a specific substance, consult the appropriate safety data sheet for cleaning instructions. For stubborn stains or residues, you may need to use a stronger cleaning agent or soak the flask in a cleaning solution.