Cjanderson629
New Member
- Joined
- Jul 6, 2021
- Messages
- 3
Hey everyone,
I recently picked up a diamond crown humidor from my local shop. Shop owner said to season with distilled water over 3 days using the magnetic humi system that came with it. On day 2 I accidentally wiped down only the lid with tap water before I realized what I was doing. I ended up transitioning to boveda packs for seasoning over 2 weeks. Fast forward, it’s been 2 weeks. I open up today to remove the boveda packs and finally place my collection inside and I notice this black spot on the lid. My initial instinct is that I ruined it and it’s mold. After removing the hygrometer, I notice there’s a washer shaped, black “O” spot that perfectly matches the shape of the magnet on the back of it.
Does this look like mold? Or am I reading/getting advice online that it could be iron oxide from the magnets of the hygrometer and magnetic humi system? (Note: the humi system was only in for two days and I can’t be sure on the exact location on the lid it was placed.)
Pics are included. Thanks in advance!

I recently picked up a diamond crown humidor from my local shop. Shop owner said to season with distilled water over 3 days using the magnetic humi system that came with it. On day 2 I accidentally wiped down only the lid with tap water before I realized what I was doing. I ended up transitioning to boveda packs for seasoning over 2 weeks. Fast forward, it’s been 2 weeks. I open up today to remove the boveda packs and finally place my collection inside and I notice this black spot on the lid. My initial instinct is that I ruined it and it’s mold. After removing the hygrometer, I notice there’s a washer shaped, black “O” spot that perfectly matches the shape of the magnet on the back of it.
Does this look like mold? Or am I reading/getting advice online that it could be iron oxide from the magnets of the hygrometer and magnetic humi system? (Note: the humi system was only in for two days and I can’t be sure on the exact location on the lid it was placed.)
Pics are included. Thanks in advance!
