Grey/white spots on the bottom of a Brita filter, possibly mold? : r/whatisthisthing

Does this look like mold in my tea kettle or just burns? ( NOT asking for ID just is it mold or not ) : r/Mold

What are these little green balls in my Brita filter?? : r/Whatisthis

Is this mold? Found in Brita Filter : r/Mold

Brown flakes coming from water filter. We changed the water filter a few weeks ago yet some flakes still come out? What could this be? : r/ whatisthisthing

Are the black dots mold on my Britta filter? : r/CleaningTips

Brita Water Pitcher Filter OB01/OB03 w Handle & new replacement cartridge 48oz

Yellow flakes appearing above water filter : r/water

Is this mold? Found in Brita Filter : r/Mold

Drank from my Brita filter only to realize there was algae growing on the bottom. Will I be okay? : r/HydroHomies