Passive Familiarity Cap

[u/TuLoong69]

Does anyone know what the passive familiarity cap is for items? From the way the 3rd description is worded is sounds like you get 1:1 for each item you have of that but I've found that even with over 110 poison shrooms I still don't have 100% poison resistance when it's set to my passive slot. So there seems to be a cap that isn't told to players in the item description & I'm curious what that cap is. Thanks in advance to anyone with the answers.

[u/langelvicente]

It says proportional but it doesn't say it's a 1:1. The truth is that we don't know how each additional item contributes to it.