manufacturer vs brewer

manufacturer and brewer both are nouns.

Word	Noun	Adjective	Verb	Adverb
manufacturer	Yes	No	No	No
brewer	Yes	No	No	No

As nouns, brewer is a hyponym of manufacturer; that is, brewer is a word with a more specific, narrower meaning than manufacturer:

Other hyponyms of manufacturer include arms manufacturer, distiller, food manufacturer, sericulturist.

manufacturer (noun)	brewer (noun)
a business engaged in manufacturing some product	the owner or manager of a brewery
someone who manufactures something	someone who brews beer or ale from malt and hops and water