It is bad to cook in anything aluminum. So just get parchment paper, (for baking -- at grocer or restaurant supply), and make a pocket by folding large pieces of parchment together. Put your food to be cooked into the parchment pocket, then put the parchment pocket into the aluminum pocket. Agree with person who said use heavy duty aluminum foil. Or, as we cook for many people while camping, use the large aluminum foil deep-sided pans, (disposable/recyclable kind), lined with parchment paper, and after food is put into that, cover with parchment paper and finally seal with heavy duty aluminum foil. The aluminum pans are sturdier to put on grates over fires, directly on fires or on gas grills. Makes clean-up easy and all the aluminum is recyclable. However, we still keep some old stainless steel pots/pans just for camping, which work just as well.
It is bad to cook in anything aluminum. So just get parchment paper, (for baking -- at grocer or restaurant supply), and make a pocket by folding large pieces of parchment together. Put your food to be cooked into the parchment pocket, then put the parchment pocket into the aluminum pocket. Agree with person who said use heavy duty aluminum foil. Or, as we cook for many people while camping, use the large aluminum foil deep-sided pans, (disposable/recyclable kind), lined with parchment paper, and after food is put into that, cover with parchment paper and finally seal with heavy duty aluminum foil. The aluminum pans are sturdier to put on grates over fires, directly on fires or on gas grills. Makes clean-up easy and all the aluminum is recyclable. However, we still keep some old stainless steel pots/pans just for camping, which work just as well.