The answer to 'how to unclog garbage disposal' is to first turn off the power to the disposal unit, either at the circuit breaker or by unplugging it. Then, use tongs or pliers to remove any visible debris or objects clogging the disposal. If that doesn't work, use a disposal wrench to manually turn the blades and dislodge the clog. You can also try using a plunger or baking soda and vinegar to break up the clog. If the clog persists, it's best to call a professional plumber to properly diagnose and fix the issue.
It's important to never put your hand inside a garbage disposal, even when it's turned off, as the blades can still be sharp and dangerous. Additionally, you should clean and maintain your garbage disposal regularly, about once a month, to prevent future clogs.