Mold on barel?

[ldmack3]

Just recently I've noticed a pale olive green stain on the outside of 2 of my older barrels. Most of it is close to a band, they do not have any feel or smell to them. Most are where old stains were.
Is this mold and if so since it is minor can I just wash with K meta or vinegar?

Thanks all

 

[Pumpkinman]

Spray it with meta.

 

[Rocky]

Yes, spray with k-meta sanitizing solution (3 T k-meta in 1 gallon of water). I would not get vinegar anywhere near my barrels.

 

[Runningwolf]

Not unusual in a high humidity area especially if you have a tiny leak. Just do as Rocky & Tom instructed.

 

[ldmack3]

At next change pull the bands and check under them?

Thanks all.