taste-tester vs taster

taste-tester and taster both are nouns.

Word	Noun	Adjective	Verb	Adverb
taste-tester	Yes	No	No	No
taster	Yes	No	No	No

As nouns, taste-tester and taster are synonyms defined as:

taste-tester and taster: someone who samples food or drink for its quality

Other synonyms of taste-tester include sampler, taste tester.

taste-tester (noun)	taster (noun)
someone who samples food or drink for its quality	someone who samples food or drink for its quality