We are sorry water appears under the rim of your glass lid. The glass lid is made from a combination of stainless steel and glass, which can be used at varying temperatures. The lid's upright stainless steel rim ensures a seamless connection to the casserole. As heat fluctuations can cause materials to expand, some space is required between the stainless steel and the glass.
Solution
It is best to remove any water or food residues from this area with a fine dry cloth, once you have rinsed the lid with hot water and cleaned it with a soft cloth. Soak the lid in hot water to loosen any stuck-on food residues, and remove them with a sponge or brush.
If any water remains under the rim after this, shake the lid and leave it lying flat at room temperature. Over time, the water will evaporate.