Tuna
Fish
Doneness
Rare
43–46 °C109–115 °F
Cool red centre, very soft.
Medium rare
49–52 °C120–126 °F
Warm red centre, springy. The classic steak doneness.
Medium
54–57 °C129–135 °F
Warm pink centre, firm.
Well done
63–65 °C145–149 °F
No pink, fully cooked through.
Tip
Sear or serve raw only if labelled sushi-grade. Tuna steak is typically served rare to medium rare in the centre.
Food safety guidance
Recommended minimum internal temperature is 63 °C / 145 °F
Source