To pull it off, a raw steak is stored in a cold ... its color will darken from bright to dark red, or nearly black or purple.

Several factors can affect the color of a raw steak, from the age of the animal ... It's why meat often looks dark when it's vacuum-packed, but becomes redder once it has access to air.

Raw steaks usually have a natural, blood-like liquid in their packaging. Although its red coloring looks a lot like blood, that liquid is not what it seems. Following is a transcript of the video.

Buy the best quality ingredients you can afford to make the most of this classic French dish made with raw steak ... spoon the steak tartare mixture onto a slice of plain or toasted dark rye ...