What is a beer? Well, it’s fermented grain, isn’t it? Usually barley, usually hops, but if you’re not too obsessed with the Bavarian Reinheitsgebot, it’s the cereal that’s at the core. From grapes you get wine, from grain you get beer.
One avenue to explore is then to look at the varieties that don’t use malted barley as their starting point. Some go for historical recreations, studying Middle Age manuscripts or stone tablets in the Middle East. There are brews with millet, sorghum and all the old types of wheat you can imagine.
To have a range of sake in Oslo, you’ll have to find one of the upmarket Japanese restaurants. Alex Sushi has lots of Chablis, but only two brands of sake.
I went with my family to Nodee recently. They have some special imports, covering a range of styles, flavours (and prices).
The food is divine, but if you order sushi a la carte, it is expensive. Try one of the pan-Asian set menus, starting off with sushi and sashimi. Splendid value.
I don’t have the knowledge to suggest any sake for you, but I am sure the polite and observant staff can help you out.
Table reservation recommended. And it’s right across the street from the Frognerbadet public pool if you want to work up an appetite.