For richer , tastier soups : an old italian trick : save and freeze the hard rinds of parmesan or romano cheese , and use them to thicken / fortify homemade soups such as minestrone or vegetable 美味鲜汤:有这样一个古老的意大利戏法,把带硬皮的帕尔玛或罗马诺干酪冷藏起来,然后将其加入蔬菜浓汤之类的汤中增加鲜味。