They should be in almost every kitchen type container, and Sham as well. I'm hoping I didn't make those values to low/TFP adjusted any on their end. If you'd like, I'll personally send you a altered loot file for your mod to up the rate a bit.
Last stage of testing I had done for loot was about a week ago or so, and report was it was a bit high with Salt and Seeds, so I lowered them a bit before releasing it. If you jump into my discord/PM me, I'll shoot you out a loot.xml file to bump it for ya.