The Clifton at Home Immersion Grid is used to keep the food items immersed under water in the water bath. Ideal for long slow cooks. Light weight items in vacuum bags may tend to float. The immersion grid will ensure that the bags are immersed under water at all times. This results in consistent cooking throughout the whole sous vide process.
The grid simply sits in the water bath and the lips sit over the edge of the bath. The stainless steel flat lids can still be used when using an immersion grid.