Can we get well with less money? It's not only possible. It is true that good food is cheaper because processed foods can be very expensive. Natural and fresh foods are also more nutritious. They also have no food additives which are added not for eating, but for longer shelf-life; replace lost colours and flavours; and other needs of the food industry.
How long can foods be stored?
Many people do keep their food longer than the above guidelines. If you keep your food longer, make sure you check it each time to see that it has not turned mouldy, slimy, stinky, rancid or otherwise rotten. Always check the food BEFORE you taste it.