Plastic can be used to store dry un-cooked food. But aluminum is a strict no-no. Cooking and storing in aluminium ware is said to be dangerous to health.

I prefer wooden ladles for non-stick type utensils. And for cooking copper bottom steel utensils.

Wooden in refrigerators? I think the wet damp wood quickly catches the fungus, so I would not use any wooden material for storing in refrigerator.

Everything's gonna be alright!!!