[gcb]

the text is wrong. it's not a "brewer without a brewery". It's maybe the opposite.

the brewery and it's brewer are making the beer. This is just a case of a salesman without a factory.

The car analogy is trying to buy a new battery. there's 3 factories, and 999 brands. The work to know which battery will not fail you sooner is to find out which factory puts out the brand you can get cheap on your area. With the beer it's the same. the recipe can be great, but which brewery is making which batch, with water from where?