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white fuzz growing on clay

updated fri 17 dec 10

 

Paul Borian on tue 14 dec 10


i mixed & pugged some clay and let it sit under plastic for a couple weeks
and now it has this white fuzz growing on it. I have never seen this happen
before and the only thing i did differently this time was add some vinegar
to the clay while mixing. I wanted to see if it made any noticeable
difference in plasticity because i was going to have to use the clay before
it had much time to age.

it looked (and smelled) more like the kind of stuff you see growing on
rotten food and kind of grossed me out. So i ran it back through the pugmil=
l
before using just to mix all that stuff up.

just wondering if anyone know if this fuzzy stuff would be considered good,
bad or neutral for the clay - and if so why?

thanks,
Paul

Steve Mills on wed 15 dec 10


Paul,=3D20
Just a thought; it may have something to do with the type of Vinegar you us=
e=3D
d. I always use organic Cider Vinegar, made by leaving the top off a gallon=
o=3D
f Cider until it turns. That way I know there are no "additives" in it.=3D2=
0

By the way I always leave my clay for at least a month (longer in Winter) b=
e=3D
fore use to allow it to sour a bit, else the effect of the Vinegar addition=
i=3D
s not noticeable.

Steve M

Steve Mills
Bath
UK

On 15 Dec 2010, at 02:11, Paul Borian wrote:

> i mixed & pugged some clay and let it sit under plastic for a couple week=
s=3D

> and now it has this white fuzz growing on it. I have never seen this happ=
e=3D
n
> before and the only thing i did differently this time was add some vinega=
r=3D

> to the clay while mixing. I wanted to see if it made any noticeable
> difference in plasticity because i was going to have to use the clay befo=
r=3D
e
> it had much time to age.
>=3D20
> it looked (and smelled) more like the kind of stuff you see growing on
> rotten food and kind of grossed me out. So i ran it back through the pugm=
i=3D
ll
> before using just to mix all that stuff up.
>=3D20
> just wondering if anyone know if this fuzzy stuff would be considered goo=
d=3D
,
> bad or neutral for the clay - and if so why?
>=3D20
> thanks,
> Paul

Snail Scott on wed 15 dec 10


On Dec 14, 2010, at 8:11 PM, Paul Borian wrote:

> i mixed & pugged some clay and let it sit under plastic for a couple
> weeks
> and now it has this white fuzz growing on it...
> just wondering if anyone know if this fuzzy stuff would be
> considered good,
> bad or neutral for the clay - and if so why?


You added the vinegar to raise the acidity of the clay,
right? This is widely believed to affect the ionic attraction
between those microscopic clay particles. (Neon-Cat
can go into detail, I suspect, better than I can.) Well, the
organic stuff in the vinegar has an added effect - food
for bacteria and mold. The excretory products of these
also are acidic, offering extra help with the plasticity.

So: definitely good for clay, assuming you want more
plasticity. If you are sensitive to mold spores, though,
it might be bad for you. So, thoroughly mixing it back
in to prevent airborne spores is a good move.

-Snail

David Woof on wed 15 dec 10


Hi Paul=3D2C
I have not noticed any appreciable difference in good or bad except the ugl=
=3D
y odors involved in stuff that i have found growing on clay. If one gets bl=
=3D
ack slime that smells like sulfur (rotten eggs) beware as it is most likely=
=3D
producing hydrogen sulfide=3D2C a dangerous to health component of sewer g=
as=3D
and should be disposed of.
=3D20
I like your style and commend you that you simply pugged it back in rather =
=3D
than freak and dump the load out in the back 40. Personally if I wouldn't =
=3D
eat my clay I won't play with it either. I prefer my clay to give off a pl=
=3D
easant earthy=3D2C slightly musky humus odor=3D2C and reserve the white fuz=
z fo=3D
r growing in my ears.
=3D20
There are other better ways to get plasticity by thoughtful formulation of =
=3D
materials. We should be full of "piss and vinegar" not our clay.
=3D20
Make good pots=3D2C be seriously playful like Nils=3D2C Test=3D2C test=3D2C=
test=3D2C=3D
like hell bound for glory.....
=3D20
Misneach=3D2C
=3D20
David Woof......Clarkdale=3D2C Az..........got the latch unlocked=3D2C a ca=
ndle=3D
in the window and a warm bowl for all my shivering friends up in deep snow=
=3D
country. You kill it=3D2C drag it down here=3D2C I'll cook it!!! I on=
ly h=3D
ave to drive 10 minutes and 3=3D2C000 feet higher up the switchbacks to pla=
y =3D
in real snow but I miss that northern Whitetail and Moose meat.
=3D20
________________________________________________________________________
12. white fuzz growing on clay
Posted by: "Paul Borian" blanketcreek@GMAIL.COM=3D20
Date: Tue Dec 14=3D2C 2010 6:21 pm ((PST))
=3D20
i mixed & pugged some clay and let it sit under plastic for a couple weeks
and now it has this white fuzz growing on it. I have never seen this happen
before and the only thing i did differently this time was add some vinegar
to the clay while mixing. I wanted to see if it made any noticeable
difference in plasticity because i was going to have to use the clay before
it had much time to age.
=3D20
it looked (and smelled) more like the kind of stuff you see growing on
rotten food and kind of grossed me out. So i ran it back through the pugmil=
=3D
l
before using just to mix all that stuff up.
=3D20
just wondering if anyone know if this fuzzy stuff would be considered good=
=3D
=3D2C
bad or neutral for the clay - and if so why?
=3D20
thanks=3D2C
Paul
=3D20

=3D20


=3D

Ron Roy on thu 16 dec 10


pts rule name description
---- ---------------------- ----------------------------------------------=
----
_SUMMARY_

Adding vinegar to clay can wind up a real smelly mess Paul. Been there
done that.

A much better answer is epsom salts - flocculates and keeps it
flocculated with none of that stuff growing on it.

RR


Quoting Paul Borian :

> i mixed & pugged some clay and let it sit under plastic for a couple week=
s
> and now it has this white fuzz growing on it. I have never seen this happ=
en
> before and the only thing i did differently this time was add some vinega=
r
> to the clay while mixing. I wanted to see if it made any noticeable
> difference in plasticity because i was going to have to use the clay befo=
re
> it had much time to age.
>
> it looked (and smelled) more like the kind of stuff you see growing on
> rotten food and kind of grossed me out. So i ran it back through the pugm=
ill
> before using just to mix all that stuff up.
>
> just wondering if anyone know if this fuzzy stuff would be considered goo=
d,
> bad or neutral for the clay - and if so why?
>
> thanks,
> Paul
>