Use an acid-resistant container. Keep acid containers covered when not in use. Do not use or store acid near bleach or other incompatible chemicals. We know that, if used improperly, electricity presents safety hazards. Yet, serious injuries and deaths still occur regularly because of someone's improper use of electrical equipment, operation with wet hands or use of electrical equipment that was thought to be defective.
Grounding is especially important when the equipment is used on metal countertops.
If you must use extension cords, use heavy-duty ones. Check for proper grounding and exposed wires, as well as the condition of cords, plugs, and insulation. In addition to being a shock hazard, defective equipment can cause fires. Equipment should be inspected regularly by electricians. Do not try to repair electrical equipment you are not familiar with, either at work or at home.