• Time and Temperature Reference

    Posted by PolyScience Staff

    This table is only meant to serve as a guideline. Temperatures should be adjusted to your preference of doneness. Cooking time should be adjusted to initial temperature, heat transfer characteristics, and thickness of the food being cooked. Times denoted with an * include time for tenderness.

    Temperature Thickness Time to Core Temperature Time (Pasteurized to Core)
    Tenderloin 138°F / 59°C 2 inches 1 hour, 58 min 5 hours, 35 min
    Rib Eye Steak 138°F / 59°C 1.5 inches 1 hour, 58 min 3 hours, 20 min
    Strip Steak 138°F / 59°C 1.5 inches 1 hour, 58 min  3 hours, 20 min
    Porterhouse Steak 138°F / 59°C 1.5 inches 1 hour, 58 min  3 hours, 20 min
    Brisket 147°F / 64°C 48 Hours* 3 hours, 21 min
    Veal Shank 167°F / 75°C 12-24 Hours* 9 hours, 03 min
    Lamb Saddle 138°F / 59°C 2.5 inches 2 hours, 16 min 3 hours, 51 min
    Pork Chop 145°F / 63°C 1.75 inches 1 hour, 45 min 4 hours, 02 min
    Ribs 140°F / 60°C 24-48 hours* 1 hour, 06 min
    Chicken Breast 150°F / 65°C 1 inch 47 min 1 hour, 36 min
    Duck Breast 135°F / 57°C 1 inch 60 min 2 hours, 41 min
    Chicken Thighs 150°F / 65°C 1.5 inches 1 hours, 20 min  3 hours, 03 min
    Foie Gras 147°F / 64°C 2 inches 2 hours, 16 min 5 hours, 09 min
    Salmon Filet 130°F / 54.4°C 1 inch 1 hour, 39 min 5 hours, 31 min
    Cod Filet 129°F / 54°C 1 inch 1 hour, 39 min 3 hours, 47 min
    Halibut 129°F / 54°C 1 inch 1 hour, 39 min  3 hours, 47 min
    Shrimp / Prawns 135°F / 57°C 1 inch 43 min 5 hours, 21 min
    Lobster 145°F / 63°C 1 inch 15 min 5 hours, 5 min
    Scallops 135°F / 57°C 1.5 inches 1 hour, 38 min 2 hours, 29 min
    Root – Whole(Beets, Carrots, Potatoes, etc.) 190°F / 88°C 60 min
    Root – Cut(Beets, Carrots, Potatoes, etc.) 185°F / 85°C 30-40 min
    Bulb – Whole(Onions, Shallots etc.) 194°F / 90°C 85 min
    Squash – Cut 185°F / 85°C 30 min
    Artichoke Hearts 194°F / 90°C 60-75 min
    Peach Wedges 190°F / 88°C 16 min
    Pear Wedges 190°F / 88°C 60 min
    Apple Slices 190°F / 88°C 40 min
    Soft Poached Egg 143°F / 62°C 57 min 44 min
    Crème Anglaise 179.6°F / 82°C 20 min


    Note:  Times shown in this reference are to achieve the absolute specified core temperature.  Cook times can be reduced significantly by adding (1) degree to the water bath temperature.  When there is little difference between bath temperature and core temperature, change occurs very slowly.

    To rapidly kill surface bacteria, immerse product in boiling water for approximately 60 seconds.

    Raw or unpasteurized food must never be served to individuals with a weakened immune system, children, older adults and those that may be pregnant as there is higher risk for serious illness.

    For more specifications on time and temperature, download the PolyScience Sous Vide Toolbox application for iPad and iPhone.

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  • Introduction to Sous Vide Cooking

    Posted by PolyScience Staff

    Sous Vide is a cooking method in which food is vacuum sealed in a plastic pouch and then cooked at a gentle temperature in a precisely controlled water bath. Compared to other cooking methods, sous vide provides more control and allows for perfect, repeatable results every time. The method is easy to learn and takes much of the stress out of cooking. Food can be held at a perfect level of doneness for a much longer time than usual methods allow.

    Benefits of sous vide include:

    • Exact doneness for delicate foods
    • Low-stress cooking by eliminating short windows of time for perfect doneness
    • Meals can be prepared ahead of time and still taste delicious; even days later
    • Serving delicious, tender and moist cuts from tougher cuts that are less expensive

    The sous vide recipes provided on this site will allow you to gain experience from simple dishes to more complex. Once you have become familiar with the basic methods, you will realize how easily the techniques transfer from one item to the next.

    In addition, PolyScience provides powerful tools with our Time and Temperature Reference Charts and our Sous Vide Toolbox application for iPhone and iPad. Use these tools to further develop your technique and understanding of the sous vide cooking method.

    History of Sous Vide
    While sous vide is a relatively new form of cooking, the fundamentals of sous vide cooking are ancient. Most cultures have traditional dishes in which the food is tightly wrapped and cooked at a low temperature for a long time.

    The modern era of sous vide began in the early 1970s when food researchers and chefs in France searched for a way to reduce product loss when cooking foie gras. They found that by cooking foie gras sous vide, much higher yield and improved texture could be achieved. Since then, chefs have been inspired to step back and thoroughly re-evaluate at which time and temperature to handle ingredients while preserving maximum of its integrity, flavor and color.
    Today sous vide has become standard in top kitchens worldwide. Food lovers have long admired the amazing flavors and textures that gourmet chefs achieved with sous vide cooking. With equipment and education being now more accessible for home chefs, the idea of guaranteed perfect and repeatable results with very easy steps has made sous vide extremely attractive for home chefs as well. It will add a new dimension to cooking for many aspiring chefs.

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