Premier Non-Stick Cookware are manufactured in conformation with stringent quality norms to make them consistent with the highest international quality standards for non-stick cookware manufactured anywhere in the world. International specialists and pioneers in the concept of non-stick cookware conduct quality assessments of Premiers Non-Stick Cookware Units. To the consumer this represents the ultimate certification of Premiers quality and provides them the reassurance that both the coating and the cookware are truly world class. To make authentic idlis, one needs the idli maker and the idli stand. This idli stand has four round tiers, 7.75 inches in diameter. Each tier has four concave depressions where the idli batter is poured. The trays are stacked and secured through a center rod, then placed in the idli maker with just enough boiling water to keep the bottom tray dry. If there is more water in the idli maker, it will get into the bottom rack and will not cook the idlies properly. Please do not use high flame to cook idlies it will burn the bottom of the idli maker.The whistle noise is more when there is water in the Idli maker. If the whistle noise is less , it indicates that there is less or no water inside the pot.As the idli steamer is used,the steam & water gets into the open pores and expands the gasket in the lid to create a tight seal to avoid water leakage. Directions To Use : - Grease the idli moulds and spoon the batter into them. - Heat water in the idli cooker. Steam cook for about 12-15 mins on high. - Take out from the fire and let cool for a while and then remove the idlis from the molds.