Something to remember is that, when neighbors and passersby are hungry... food cooking smells advertise that YOU have food and it makes you a target.

Avoid strong spices, garlic, ginger, onions, sweet or fragrant sauces. Smells linger and drift with the wind. Don't smoke meats unless you want attention. Be smart. If people are hungry, and there are shortages, do not be seen with food. Do prepare small packages of foods as trade items. A 16 ounce package of pasta or a 1 lb bag of rice has trade value. Small bags of sugar or coffee or flour or salt has value.