Is There Such Thing As A Preservative Recipe-for bread,cina rolls,cake, ect.?

If So Whats hThe Recipe?Is There Such Thing As A Preservative Recipe-for bread,cina rolls,cake, ect.?
Yes, add lots of salt. But since that is unhealthy, add a pinch of salt when mixing (no other salt) and once baked, wait for it to cool and freeze it.