Can fillet mean more than one cut?

Check the confidence note below; low confidence or multi-cut rows are flagged when present.

How do you order steak doneness in Thailand?

In Thailand, medium rare is called "Midiam rae". Rare is "Rae" and well done is "Sook".

loin primal · Ireland

fillet

Q: What is fillet in Thailand?

fillet is the Ireland retail name for the beef tenderloin, which sits on the loin primal. In Thailand, the same cut is most often labeled san nai.

Q: What is fillet called in Thailand?

Look for san nai—mapped to Tenderloin (beef tenderloin).

Q: What primal is fillet from?

Tenderloin is on the loin primal (psoas major).

In Thailand, this cut is san nai.

Exact match · Confidence 0.95

Fig. 1 · psoas major · loin primal

About this cut

Most tender muscle of the loin; center cuts often sold as filet mignon.

Primalloin

Locationpsoas major

In Thailandsan nai

What is this cut →Global guide →

How to order steak doneness

Ireland → Thailand

rare	Rare	→	Rae	48–55°C
medium rare	Medium rare	→	Midiam rae	55–60°C
medium	Medium	→	Midiam	60–65°C
well done	Well done	→	Sook	70–100°C

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.

Detailed explanation

“fillet” in Ireland maps to canonical tenderloin (loin: psoas major). In Thailand, look for labels such as san nai. Most tender muscle of the loin; center cuts often sold as filet mignon.