Advice please

[Winemaker]

I store my bowls etc in a plastic storage box under my stairs not the driest place but not damp some of them are getting a green surface mold . I can't under stand why its only one or two I finish them all with the same BLO and they are different woods I have cleaned them off and wax polished them to try to stop it happening again. Anyone come across this problem any advice welcome.
Many thanks Tom

 

[Buckeye]

Air flow.

Peter

 

[Themackay]

As peter said cant breath in plastic dosnt take much moisture to get mould

 

[Penpal]

I find it interesting the way conditions in the UK vary so vastly from those here. So many problems. In the tropics in linen cupboards, the practice used to be to leave an incandescent lamp on continuously that cured their problem.

Peter.

 

[Dalboy]

Before reading any other reply I would say Air flow and are you stacking them in stick as well. Drill some big holes in the sides just tell the missus it is mice