brand-name rice
Refers to rice sold under a specific brand, often associated with premium quality, specific regions, or cultivars like Koshihikari.
最近はスーパーでもいろいろなブランド米が買える。
These days you can buy various brand-name rice even at supermarkets.
銘柄米 is a near-synonym also meaning branded rice, but ブランド米 is more common in everyday consumer contexts.
Compound of ブランド (brand) and 米 (rice). A straightforward modern term.