Some ingredients like onions and garlic have quite a strong aroma.
In certain cases it’s possible that the odor will “stick” to a plastic part or seal. Sometimes this is unavoidable.
Over time, some of the odor will disappear. Storing the lid with the underside facing upwards can help in this case, as the odors are able to evaporate more quickly.
These odors will not affect your health in any way, nor will they impair the functionality of the parts.