sous vide. Means "under vacuum". https://en.wikipedia.org/wiki/Sous_vide https://en.wikipedia.org/wiki/Sous_vide Edit: I read a bit more on this, and was mista

sous vide. Means "under vacuum". https://en.wikipedia.org/wiki/Sous_vide https://en.wikipedia.org/wiki/Sous_vide Edit: I read a bit more on this, and was mistaken. Here is my original explanation: Basically a vacuum pump to lower boiling temperature; this puts a ceiling on achievable temperature for water-rich foods. Actually, nowadays it looks like it's just slow cooking vacuum-sealed food in a temperature-controlled water bath.