I just had a shower thought, probably dumb and I am tired, but how about pipes to deliver regular liquids/fluids? ๐ค
I think I read somewhere in Germany brewery would have pipes to bars delivering a continuous supply of beer.
Now let's do that with ultrafiltered and/or ultra-high-temperature milk (less prone to spoiling).
How about adding pipes for beer (or some other alcohol or wine), cooking oil (whichever most suitable), and any other frequently used liquid I forgot?
If spoilage is well controlled, would that be a less energy intensive distribution method?