question Why does this Attic [Cellar] have a worse preservation than the kitchen?

[Madalovin]

Short: Cellar Room built above kitchen is made of cobblestone and chiseled blocks, why is this room's Food Preservation score worse? I've it fully sealed in earth/insulated blocks.

Long:  I've built my kitchen and decided to move the Cellar above ground during the Winter. I noticed once spring hit that my attic space provides less preservation strength than the kitchen, which has glass windows to the sun outside!. The roof tiles have a solid earth block beneath each of them, the floor is made of chiseled granite cobblestone/pine plank blocks. The rest of the room consists of what you can see here. Signs, Granite Cobblestone or chiseled variants, and cobwebs with a oil lamb. I don't understand what I've done wrong.

[Michael Gates]

A room can be 14x14, but a cellar has to be 7x7. Your attic, at 0:45-46, when you go from the little nook on the left with the pottery vessel in it, to the wall on the right... that looks like it's nine blocks of space. Which would make the space qualify as a ROOM, but not as a cellar. I'm not sure about the kitchen 'cos sculpted stuff, but it looks like 7x6? so even with the windows it WOULD count as a (terrible) cellar. So, crappy bonus downstairs, no bonus at all upstairs.

[Madalovin]

Ahhh. okay, I forgot about the limit of 7x7.   I was going off of the "Has to be within 150 blocks" as my limit.
I'll have to schmove things around, thank you.