How to make stack inserters not get stuck while removing iron bacteria?

[winged turret]

Hi, im trying to get a good throughput of iron onto one belt. But a problem im facing is that whenever the biolabs dont produce enough bacteria, the bacteria in the stack inserter spoils into iron, making it so it now first has to spoil in the biolab to be picked up. I have tried to connect logistics to it so that when it detects iron in the stack inserter it changes its stack size to 1, but it doesn't seem to work. Is there any good fix for this? or can this not be solved and should i just abandon this and put it on a different belt?

Nevermind, a super simple fix was just making a whitelist for the iron bacteria 🤦‍♂️

[drowsy valley]

If you really want to have the belt stacked, you can permanently reduce the hand stack size to 4/8/12 (or a multiple of your current belt stack size)

I wanted to test whether a the iron bacteria whitelist forces the stack inserter to flush its hand, but it puts the iron ore on the belt the moment the bacteria spoiled on default settings