> so you know what you eaT,

And another thing to consider is that some crops taste much better when fresh harvested. Freshly picked sweet peas or baby carrots taste much better than those put in a fridge or left for hours in a market. Apples or tomatoes are a totally different world also.

In a balcony use the vertical space with climbers (zucchini, scarlet beans). Pumpkins will grow well also, but some are very heavy and you must assure that none grow in a way that can't fall to the street, over somebody. Tiny pots give tiny crops.