Jason Atherton announced today on Saturday Kitchen that the worlds best selling kitchen gadget is non other than the water bath.

It's populaity is due to the water bath appearing on many celebrity cooking programs and competitions such as Masterchef the professionals, and now people want to try their hand at Sous Vide - cooking with a water bath, themselves.

The advanteges of cooking with a water bath or Sous Vide, is that food remains much moister and retains more of it's original texture.

Water baths used to be very expensive as they were only seen in professional kitchens, but due to public demand, Sous Vide machines are now available at much cheaper prices, and can be purchased from many online retailers.

The Water bath featured on Saturday Kitchen is the SousVide Supreme Demi, and can be purchased from Amazon