Prefixes:
* Re- can be used to indicate a renewal or restoration of freshness, like "refreshed" or "rejuvenated."
* Newly- emphasizes the recentness of something being fresh, like "newly-baked" or "newly-picked."
Suffixes:
* -ness can be used to create a noun form of "fresh," like "freshness."
* -ly can be used to create an adverb form of "fresh," like "freshly" (e.g., "freshly baked").
Other words:
* New is a synonym for fresh, often used in contexts like "new beginnings" or "new ideas."
* Young can also imply freshness, particularly in contexts like "young talent" or "young energy."
The specific word or combination you choose will depend on the context and desired meaning.