They are not techs, they are just natural application of fermentation both Cheese and Sausage techs
must go

I was thinking of the process of food preservation known as pickling/salting and preserving (sugar) as Food Preservation not canning both are old.
Well it can't be called " Food Preservation" because we already have a tech called that in the Industrial Era. The current requirements for all these are ...
Cuisine
Req Techs: Specialization AND Gardening AND Bread Making
Cheese Making
Req Techs: Fermentation AND Cuisine
Sausage Making
Req Techs: Fermentation AND Cuisine
And thy both lead to Spice Trade.
Spice Trade
Req Techs: Calendar AND Cheese Making AND Sausage Making AND Salt Processing
If we left it to just Cuisine then it would be like ...
Spice Trade
Req Techs: Calendar AND Cuisine AND Salt Processing
So yeah I guess I am giving into keeping Cuisine and getting rid of Sausage Making and Cheese Making.
I just need to move Cheese (resource), Cheese Shop, Sausages (resource) and Sausage Shop to Cuisine before the tech is removed.
EDIT: Ok ...
- Moved Cheese (resource), Cheese Shop, Sausages (resource) and Sausage Shop to Cuisine tech.
- Removed Cheese Making, Sausage Making and Atomism techs.
- Spice Trade now requires Calendar AND Cuisine AND Salt Processing techs.
- Cuisine now requires Specialization AND Gardening AND Fermentation