Why should you never use taste or touch to identify bases?

- Taste: Bases have a bitter taste, but this is not a reliable way to identify them, as some non-basic substances can also taste bitter.

- Touch: Bases can feel slippery or soapy to the touch, but again, this is not a reliable way to identify them, as some non-basic substances can also feel this way.

If you come into contact with a base, it is important to rinse the affected area with water and seek medical attention immediately.