There are a fantastic series of charts posted by Dave Arnold of The French Culinary Institute in New York, which are available for download, in addition to an in depth look at low temperature Sous Vide cooking for all those not familiar with the technique. This is a valuable resource, especially to those food lovers that want a visual reference point for learning. This link will take you to the Cooking Issues site, where there’s a wealth of information ranging from what steaks look like after cooked sous vide at various temperatures, to USDA food safety charts.