Two different questions
Every time you cook meat, poultry, seafood or eggs, you are answering two separate questions. The first is about safety: has the food reached a temperature that kills the harmful bacteria it may carry? The second is about preference: is the texture and colour what you want to eat?
In everyday cooking those questions get blurred together. People talk about a steak being "rare" or chicken being "done" as if one word covered both. Sous vide pulls them apart, because a water bath lets you choose a final temperature very precisely. That precision is useful, but it also makes it easy to choose a temperature for texture and forget to ask the safety question. This guide keeps the two apart.
The safe minimum internal temperatures
The USDA Food Safety and Inspection Service (FSIS) publishes a Safe Minimum Internal Temperature Chart. These are the temperatures the centre of the food should reach, measured with a food thermometer.
| Food | Minimum internal temperature | Rest time |
|---|---|---|
| Beef, pork, veal and lamb: steaks, chops and roasts | 145°F (62.8°C) | 3 minutes |
| Ground meats (beef, pork, veal, lamb) | 160°F (71.1°C) | None listed |
| All poultry, whole or in pieces, including ground poultry | 165°F (73.9°C) | None listed |
| Egg dishes | 160°F (71.1°C) | None listed |
| Fish with fins | 145°F (62.8°C) | None listed |
| Leftovers and casseroles | 165°F (73.9°C) | None listed |
FoodSafety.gov describes shellfish by appearance rather than a number: for example, cook shrimp, lobster and crab until the flesh is pearly or white and opaque, and clams, oysters and mussels until their shells open. The full list, with more food types, is on the safety table.
For sous vide, the practical meaning is direct. To meet one of these minimums, the bath must be set at or above that temperature, because food in a water bath does not get hotter than the water. Then the centre of the food must actually get there, which takes time, and you confirm it with a thermometer.
Why ground meat differs from a steak
Ground meat has a higher minimum than a whole steak of the same animal. The FSIS guidance on ground beef explains the reason: bacteria are mostly on the surface of a piece of meat, and grinding can spread them from the surface all the way through. A whole steak's surface is easier to bring to a high temperature during cooking or searing; a burger's inside contains what used to be surface. That is why ground beef is listed at 160°F, and why it matters to know whether a sous vide recipe is for a whole cut or for something minced, stuffed or rolled.
The same logic is worth applying to any food that has been cut into, injected, tenderised with needles or rolled around a filling. If a recipe's temperature is based on a whole cut, it may not be the right figure for a food that has been handled that way. When in doubt, use the higher figure from the chart.
Colour is not a safety test
FSIS guidance on the colour of meat and poultry is clear that colour does not tell you whether food is safe. Meat can turn brown before it reaches a safe temperature, and some properly cooked meat and poultry can stay pink. The only reliable check is a food thermometer.
This matters more with sous vide than with most methods. Food cooked in a water bath often looks different from food cooked in a pan or oven at the same internal temperature: it can be evenly pink from edge to edge, with no browned band at all until it is seared. A piece of pork or poultry can look underdone by everyday standards and still have reached its safe minimum internal temperature, or look right and not have reached it. Read the thermometer, not the colour.
Where doneness comes in
Once the safety question is answered, doneness is a matter of taste. For a whole beef steak, the FSIS minimum is 145°F with a 3 minute rest, and a cook can choose to go higher for a firmer result. The government guidance gives a floor, not a target: it says nothing against cooking to a higher temperature if that is what you prefer.
Searing after the bath adds colour and flavour to the outside. It does not change whether the centre reached its safe minimum temperature, so the thermometer check still comes from the centre of the food.
When a recipe asks for less
Many sous vide recipes give a bath temperature below the FSIS minimum, most often for poultry and for beef cooked to a pink centre. They rely on a principle that is real: holding food at a temperature for long enough can reduce harmful bacteria, which is the idea behind the time and temperature tables in the FDA Food Code for certain whole roasts. But those Food Code tables are written for regulated food businesses with conditions attached, and the consumer guidance from FSIS and FoodSafety.gov gives single minimum temperatures, not time-based alternatives for home cooks.
The Food Code also shows how seriously the food industry takes this question. When a restaurant serves animal food that is raw or undercooked, the code calls for a consumer advisory: a notice telling customers that eating raw or undercooked food may increase the risk of foodborne illness. That is a useful way to think about a lower sous vide setting at home. It is a choice to accept a higher level of risk than the government guidance describes, not a technique that makes the risk disappear.
If you cook for people at higher risk
Pregnant people, older adults, young children and people with weakened immune systems are more likely to become seriously ill from food poisoning, according to FoodSafety.gov. For them, cook to the safe minimum internal temperatures and talk to a qualified health professional about anything else.
Eggs
Eggs are popular in water baths, often cooked in their shells. The FSIS guidance on shell eggs says egg dishes should reach 160°F, and that eggs should be cooked until the white and yolk are firm. For recipes that leave eggs runny or only lightly cooked, FSIS points to pasteurized eggs, which have been treated to destroy bacteria while still in the shell, as the safer choice. This handbook does not give times or temperatures for cooking eggs to a soft texture, because the cited guidance does not.
Example: reading a recipe
Worked example
An illustration of how to read a recipe against the chart. It is not a recipe and describes no real publication.
- A recipe for chicken breast gives a bath temperature lower than 165°F and a long cooking time, for a softer texture.
- The cook looks up poultry on the FSIS chart: 165°F (73.9°C).
- The recipe's temperature is below that minimum, so following it would mean relying on a time and temperature combination that the consumer guidance does not set out.
- Because an older relative is coming to dinner, the cook sets the bath at 165°F or above instead, and checks the thickest piece with a thermometer before serving.