Brown rice can be used for sushi.
In the US there are restaurants that specialize in making sushi with brown rice. In 2006, I once made brown rice sushi it was during the training for Japanese sushi chef in Los Angeles.
Sushi with brown rice has a nice taste.
However, I think there are a little too many challenges when cooking brown rice to start making sushi with brown rice.
As most people know sushi rice is already hard to cook to perfection. Sushi ris should be soft but firm. It is a texture that is hard to get right.
Brown rice is even harder to cook to perfection since the pre-cooked rice will never have the consistency the same as white sushi.
Read more about Sushi chef & sake sommelier Zoë Escher
Zoë has lectured and held sushi courses for A. P. Moller – Maersk, Hugo Boss Nordic, Novo Nordisk, Novartis, Velux, Gorrissen Federspiel, Accenture audit Elbek & Vejrup and many more.