Contamination is a Stat that starts off at 100 and goes down through either Consuming specific items or through peeing naturally, the 2nd option is not that effective though for lowering it quickly

The lower your contamination the slower Urlid will buildup and the Purity of the Urlid you produce will be more pure

Yellow herb mix will lower Contamination by .05, it is crafted with Dandelion and Nettle, it is the least effective Method of reducing Contamination
Orange Herb mix will lower Contamination by .2, it is crafted with Yellow Herb mix (Dandelion + Nettle) and Pink Herb Mix (Thistle + Nettle). Orange Herb Mix is the best option for reducing your contamination quickly
UROFF lowers Contamination by .5 and can be found rarely around the world or a few inside a Marigold Van after defeating one. UROFF is a good option for lowering your contamination but since it is rare it is not the most effective. If you want to find more UROFF you can increase your perception by looting and that will give you better odds

Urid will increase Contamination by .3, it is best to avoid eating it
Urlid will increase contamination by .1, it is best to avoid drinking it

Getting to 0 Contamination is a Task that will take a while, needing 200 UROFF or 500 Orange Herb mixes

The best strategy is setting up as much farms as you can and Farming Neddle, Thistle, and Dandelion to mass produce Orange Herb Mixes

If that isnt appealing, you can farm UROFF By going Between each Marigold Van Spawn at very high fog

















Once you get to 0 Contamination you will be awarded the No Toilet Required Achievement and you will piss 66% Pure Urlid


Thank You For Reading!