With how game mechanic changing these items are, I am giving an example:
All Nauvis packs+Space and Fulgora science packs to unlock water freezers (and the water to ice recipe, and ice to water recipe) and All Nauvis packs+Gleba science packs to unlock its freezing and unfreezing of spoilables recipes. Item only be build in assembly machines on space platforms.
Aquilo to unlock refrigerators...but locking their assembly to be on Vulcanus in Foundries (where they cannot be used but is the only place where they can be built, ironically).
Refrigerator wagon being locked behind Promethium Science packs, requires Cryogenic plant on Aquilo for item construction and refrigerators as part of recipes. Because it literally breaks any semblance of game mechanic balance regarding spoiling mechanic...you need a qorking interplanetary logistic system to carry all the ingredients and items back and forth to get the best goodie.
This would encourage players to make all science packs and have also industry on every planet plus have the endgame pack to get all the tech.

A lot of people complain about spoiling, so this provides them with more effective tools, than just shortening production lines.
It adds freezing and melting as extra steps for longer spoil time. The balance can also be tweaked in settings by adjusting ice effectiveness.

Refrigerators are locked behind cryogenics, which means a lot of spoilable science has already been produced and the initial challenge of spoilage has been overcome. Now they provide a quality of life, making spoilage much less of an issue.

There is still supply chain optimization to be done, as the items still spoil a bit over their journey, refrigerators do not "heal" spoiling or eliminate it, they only stop it while item is inside the powered entity.

This mod does make the game easier all things considered, but introduces a few extra steps too.

The changes suggested seem a bit too complicated and raise tech to more endgame than this is aimed for.

Thanks for explanation. :)