Thanks for the report however I can't reproduce any issue. Are you sure you're not running into the same thing as this report? https://forums.factorio.com/126807


I looks similar, But i basically have it on demand. I looked for the spaceship hub so didnt find the landing pad thing.
If they are ...

If you're worried about stack averaging you can use two chests with spoiled-first inserters pulling out. Set up a latch to control which extractor and which inserter is active so that a chest is either filling or emptying. When the active chest is empty, flip the latch.


This would still back up ...

Situation:

When transporting biter eggs on a space station for making science.

I set the biter egg inserter to spoiled only.

Expected result : The eggs with the shortest timer gets processed first.

Actualy result : the last egg to enter the spacestation gets processed first ( the eggs get ...

I don't understand why you want to put fast spoiling items into a chest in the first place when you want it for fast processing. For fastest processing, you either do direct insert into the next biochamber for production of the next item, for example mash directly into the biochambers for ...

According to the wiki spoiling in a chest is done per stack.
So Spoiled first should be close to FIFO as long as you have decent throughput and quantitys.


https://wiki.factorio.com/Spoilage_mechanics
Freshness and stacking
When spoilable items form a stack (inserters picking up items, items ...

Short:
I want a chest that takes stacks out the way they got in.

What:
When i put stuff in a chest i would like the option for the chest to put them in the slots in order and take them out in that same order.
So like a linked list in chest form, insert index, output index and they just loop around ...