The term 'aletaster' can be challenging to understand, but it refers to an individual who judges the quality of beer. However, there are several other words and phrases you can use instead of 'aletaster' to express the same idea. For example, you could use 'beer judge,' 'beer inspector,' 'brewery evaluator,' or 'fermentation expert.' Other potential synonyms for 'aletaster' could be 'beer connoisseur,' 'beer aficionado,' or 'beer enthusiast.' All of these words convey the same overall meaning of someone who has a discerning palate when it comes to the taste and quality of beer.