Apologies for the slow reply. My development PC was in the middle of being upgraded. After some testing, I was unable to reproduce this spoiling issue you're talking about.
Some questions for you:
1) Were are you storing the food?
- Inventory, fridge, box? Is the fridge powered?
2) Is it cooked food or raw?
I do find it unlikely that SuperCrafter would change the spoiling of food as it only manages items that are used for crafting in the player's inventory. However, I've seen Rust do some crazy things...
Let me know ASAP so I can get this fixed for you.
Just an FYI - I will be very busy from Thursday-Sunday; but, I'll do my best to get this fixed for you.
You can always connect with me on Discord at @Vergbergler if you would like!
-Cheers