I think current problem is that 12 months aged cheese falls under 2 categories: 0-12 months and Fresh. To resolve this problem, you can modify current categories to make sure that users will clearly understand which category to choose depending on their cheese age. OP in the comments has mentioned that months are pretty important for the cheese age and due to that I'd recommend you having the same option menu with modified categories (unless user has to display other data in the same screen and option menu would take too much space, then you should consider using dropdown menu, but take in consideration that dropdown menu's aren't very UX friendly):
- Less than 2 months
- 2-6 months
- 6-8 months
- 8-12 months
- More than 1 year
- Unknown
I put unknown as the last category on the list because I believe that lazier users will choose Unknown without putting any effort into finding out their cheese age. This is my personal opinion and of course would require some kind of user testing to be confirmed.