When you download Sandy's cc, she's got a detailed description of the mods you need to use them... Example:
"Edible Food
- You'll find the food in Appliances/Misc
- It can be stored in inventory and then be sold with Ani's Shop from Inventory
- Snob Sims won't appreciate it, unless you edit the files, and use nonamena's script, at Mod the Sims!
- the custom food can't be eaten or grabbed when they're on their small cardboard tray.
- To have your Sim eating a pastry on a seat, you have to make your Sim grab or buy a pastry, then to seat, and there, click on the pastry in the inventory and choose "eat", otherwise they eat standing.
- some pastries are recolorable, so choose your flavor! ;)"