Can spark plugs be used after cleaning?

[AngelaMarie]

Spark plugs can be used after cleaning. The cleaning methods are as follows: 1. Find a glass container, place the spark plugs inside, pour white vinegar to cover them, soak for 2 to 3 hours, then scrub clean with a hard toothbrush and let them air dry naturally; 2. Place the spark plugs with their heads facing downward in a glass bottle, spray carburetor cleaner into the bottle until the spark plugs are submerged, cover the bottle, wait for about half an hour, then take them out, scrub clean with a toothbrush, and let them dry or use a hair dryer to dry them; 3. Soak the spark plug ignition electrodes directly in pure toilet cleaner, place in a ventilated environment for 10 minutes, wait until the bubbles gradually reduce, then take them out, rinse clean with white vinegar, and let them air dry.