loin primal · Thailand
In Tamil Nadu, this cut is undercut tn, also sold as naram tn.(water buffalo (buff))
About this cut
Most tender muscle of the loin; center cuts often sold as filet mignon.
| rare | Rae | → | Rare |
| medium rare | Midiam rae | → | Medium rare |
| medium | Midiam | → | Medium |
| well done | Sook | → | Nalla seyyu |
Doneness terminology varies by country and restaurant. When unsure, describe what you want — e.g., “warm red center” — rather than relying on the name alone.
“san nai” in Thailand maps to canonical tenderloin (loin: psoas major). In Tamil Nadu, look for labels such as undercut tn · naram tn. Most tender muscle of the loin; center cuts often sold as filet mignon.
This information is for educational purposes only and may vary by region or butcher practices.