Spalted Maple question

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Forum topic by superstretch posted 01-23-2012 11:41 PM 1104 views 0 times favorited 4 replies Add to Favorites Watch
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1531 posts in 3146 days

01-23-2012 11:41 PM

Topic tags/keywords: spalted maple

Last week, I had a piece of spalted maple that I took to work to show a coworker.. It was a very nice slab that looks like a spalted burl, as the grain looks like cinnamon on toast.

Unfortunately, I left it in my truck overnight and we had a freak rain shower out of nowhere and the top of the slab was soaked. I brought it in to the house to dry and checked on it a couple days later. I had weighed down the center to try to get it back to its shape, but when I checked on it, it was now cupped the other way, like a bowl. I also noticed that there was some fuzziness on the top. When I flipped it over, I found that the entire bottom side was covered with a mold or fungus of some sort.

My questions are
  1. is it still safe to use?
  2. is it safe to keep in the house to continue to dry out
  3. is there interest in the fuzz (I see some people on here from time to time trying to cultivate it)

I couldn’t believe how fast ‘the fuzz’ grew.. It was about 36 hours between it being soaked and it being a culture site. Also, this wood was KDed at one point.. would/shouldn’t that have killed off the culture?

-- Dan, Rochester, NY

4 replies so far

View SASmith               's profile


1850 posts in 3440 days

#1 posted 01-24-2012 12:02 AM

My guess is that it was not properly kiln dried(not high enough temp).
Fungus is dead in kiln dried wood and dormant in air dried wood.

-- Scott Smith, Southern Illinois

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13649 posts in 3794 days

#2 posted 01-24-2012 12:34 AM

could you carve it into

a chia pet

it think bleach will stop the fungus
then see what you can do about the cupping

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View WDHLT15's profile


1819 posts in 2929 days

#3 posted 01-24-2012 04:49 AM

Fungal, mold, and mildew spores are all over the place. It does not matter that it was kiln dried because you un-kiln dried by leaving it in the rain. The spores were in the environment. The conditions were perfect for fungal/mold growth, and that is what happened.

Any wood that is kiln dried that is left out in the outside environment will re-equilibrate with the ambient environmental conditions, meaning that the wood will gain moisture, the amount based on the humidity. The board cupped because after it got wet, it dried more on the exposed side than on the underside, creating tension that caused the cupping. If you turn the cupped side down flat on a surface, it might flatten back out. Then, be sure and store it so that air can circulate freely around both side of the board until the board reaches equilibrium again.

-- Danny Located in Perry, GA. Forester. Wood-Mizer LT40HD35 Sawmill. Nyle L53 Dehumidification Kiln.

View superstretch's profile


1531 posts in 3146 days

#4 posted 01-24-2012 04:19 PM

Patron, I like your idea!

Thanks for the tips guys.. I already have it weighed down and its getting back to normal.. I may grab my respirator and scrape it down to get it looking like how it was

-- Dan, Rochester, NY

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