It's better to avoid the use of aluminium cookware and foils specially when cooking with acidic foods like lemons and tomato paste.
When preparing condiments, make them a little salty so they can be preserved longer.
Sweat and drain eggplants and zucchini to remove extra water and bitterness.
Fry meat, chicken, sea food, and vegetables on high heat so they don't lose their juices and flavor.