Griffin J
Google
This another of the "Best Locals-Only Secrets" in Salt Lake. The website says something to effect of "the freshest you can find" and it's true, true, true!
Salt Lake has got a beer culture ( no pun) that would be the envy of a city much larger, and Red Rock Brewery is one of the great brewers of Utah. Their beer in the supermarket is just fine, but there's nothing like pulling up to the door of the brewery for one's beer.
I won't list my favorite of the beers, 'cause my favorites, and their inventories, change regularly. If you're wondering about the stuff in the store, ask. All the staff I've met have been knowledgeable, friendly and patient, and they seem to actually enjoy talking about their beer.
This place might be bit tricky to find, but that is only once. Easy to find (really) from I-15 (6th North exit) and Third West (US 89, Beck St.). Absolutely worth a side trip.