I have just taken delivery of the remaining English Oak to finish replanking.
It's air dried (4 years) quarter and rift sawn, however a few boards show discolouration:
The boards are 11" wide and 23' long - these patches appear halfway up the boards affected.
In some earlier green stock for steaming timbers, similar but darker patches (smelling a bit sweet) proved to be the beginning of fungal attack and useless.
Could this be the same?
(There is no smell associated nor obvious evidence of a split with these patches).