A5
Verified
Mastro's - San Francisco
San Francisco, CA · Steakhouse
Sourcing Transparent
Tier 2 · Provenance-Transparent
Why it's listed
Mastro's Steakhouse on Geary Street runs a multi-origin Wagyu program. Its San Francisco dinner menu offers Japanese A5 from Miyazaki Prefecture, Australian Westholme cross-cattle Wagyu, and American WinterFrost (Halal) Wagyu, alongside Wagyu carpaccio, meatballs, and a Wagyu roll. The venue is licensed by the Kobe Beef Association, but its current San Francisco menu does not list a Kobe cut, so it is shown as licensed rather than serving Kobe today. The named prefecture and grade on the Miyazaki cut put it among the directory's provenance-transparent listings.
Wagyu on the menu
- Japanese
- Brand / Prefecture
- Miyazaki
- Grade
- A5
- Producer
- Not listed
- Australian
- Brand / Prefecture
- Westholme
- Grade
- Not listed
- Producer
- Westholme Cross Cattle
- American
- Brand / Prefecture
- WinterFrost (Halal)
- Grade
- Not listed
- Producer
- WinterFrost American Wagyu
| Origin | Brand / Prefecture | Grade | Producer |
|---|---|---|---|
| Japanese | Miyazaki | A5 | Not listed |
| Australian | Westholme | Not listed | Westholme Cross Cattle |
| American | WinterFrost (Halal) | Not listed | WinterFrost American Wagyu |
Sourced from
Address
399 Geary St · San Francisco, CA 94102Get directions
Phone
Last verified
July 22, 2026 · evidence on file