Vijay, you appear to not have sat and gone through the old posts on this forum that deal with exactly what you are looking for. Do some searches and spend time reading old threads that started many years ago. You will find a goldmine of information together with recipes, methods etc. Once you have made the effort and want further assistance, forum members will normally jump at the opportunity to assist. But if you do not make the effort, neather will the forum members. We all enjoy helping and assisting each other, but showing you have attempted to do some research as well, will make your efforts in getting assistance much easier. Learn to walk before you try to run!
You mention above about toast and query how long it will remain fresh. Have you done a simple experiment to test how it transports and how long it stays fresh? If you have not, that is where to start with a simple experiment and you will know the answer within a day! If you want the forum members to tell you your answer without making any attempt to experiment yourself, do not expect others to feed you the information when you make no effort to experiment yourself. Sometimes trial an error will teach you a lot more than others just feeding you an answer. Try it - you will be supprised at what you learn and when you fail and explain to other members exactly what you were trying to do and what went wrong, there will be somebody to point where you went wrong or suggest how to fix the problem.
We all help each other, but we are not a group of people to teach you how to run a business or what you need on your menu. Sorry if you did not want to hear this. However, it is my opinion and not necessary the opinion of any other member of the forum.
