Schramm said that because of its tendency to readily exhibit oxidative sap stain
and to host various fungi, hackberry has fallen from favor over the last few decades and is often relegated for use om covered furniture or pallet stock.
Recorded drying defects included percent sap stain, total length affected by check and split, numbers of sticker marks, and percent mineral stain.
Enzymatic stain is also called sap stain because it only occurs on sapwood.
Sap stain represents the percentage of sapwood in a board that had enzymatic stain.
Blue stain, or sap stain
, is a phenomenon caused by pigmented micro-fungi growing primarily in the parenchymatous tissue of sapwood where starch and sugars are available.
Wolfe said that the company's yield determination may differ from the figure on the invoice "because we (deduct) things that they might not consider a defect, such as sap stain
Three initial stains are applied: a sap stain
, body stain and penetrating stain.
The wood is very susceptible to fungi attack, including the blue sap stain
With regards to seasoning, the wood dries well and rapidly, although users should watch for sap stain
when air drying.
If you're hauling the tree in the back of your SUV or minivan, lay down a blanket or tarp to protect your interior from sap stains
The sapwood, meanwhile, is pinkish-white in color and is often stained blue with sap stains
It is susceptible to sap stains
which are blue in color.