to stop
Touch it:
Still firm? Good
Slimy or weirdly soft? Not good
If everything else looks normal, you’re probably in safe territory to trim it.
How to Cut It Off Without Making It Worse
This is the part people mess up—cutting too close.
Here’s the right way:
Use a clean, sharp knife
Cut at least 1 inch (2.5 cm) around and below the mold
Don’t slice straight through the mold and keep going—that drags spores into the good part
Cut wide, then discard the moldy portion immediately
It