But aluminum reacts with acidic foods. Try dropping some vinegar on aluminum and see what happens. Otherwise, aluminum is fine to cook with. And luckily, aluminum is inexpensive. Stainless Steel lasts forever.
Stainless steel looks clean, bright and efficient.
Stainless steel does not interact with foods. Acidic foods that interact with aluminum can be cooked safely in stainless steel. Home beer brewers use stainless steel. For instance, All-Clad takes a thick shell of aluminum for heat conductivity and bonds a liner of stainless steel to the inside. Therefor, you are getting the heat from the aluminum and the safety of cooking on stainless.