Make sure that the lid is secure! If the lid comes off, then you’ll get soapy water everywhere!
Alternately, use a few drops of white vinegar instead of the lemon. This may not smell as pleasant as the lemon, but it should be about as effective. [2] X Research source
After a few hours have passed, pour the mixture out into the sink. Rinse out the blender carafe until it is completely clean. If the blender still smells like baking soda and vinegar, consider doing a quick blend-and-soak with only dish soap and water.
Do not wash the base! The base houses the electronic motor and control system for the appliance. These parts will not stand up well to extended moisture exposure. Keep your cleaning efforts purely to the exterior, and absolutely do not submerge the whole base in water.
The rubbing alcohol should dry quickly and evaporate. If any moisture remains on the blender base, wipe it away with a dry towel.
If you don’t want to remove the blades, you can always just clean them in the carafe. Pour in enough hot water to cover the blades, and then drop in two tablets of polident. Let soak for at least half an hour. Polident is a commercial tooth-whitening and antibacterial agent. You should be able to find the tablets in drugstores and grocery stores.