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shino and wood fire question

updated wed 4 oct 00

 

pam pulley on tue 3 oct 00


Hi folks,

I am a lucky puppy. I get to be involved in my first wood fire experience
at the end of the month. My question is about the Cone 10/11
shino our studio has had mixed up for 5 years or so and not used. Is it
still good or do I need to mix a new batch?

pam
in michigan

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Jeff Brown on tue 3 oct 00


On Tue, 3 Oct 2000 23:51:43 GMT, pam pulley wrote:

>Hi folks,
>
>I am a lucky puppy. I get to be involved in my first wood fire experience
>at the end of the month. My question is about the Cone 10/11
>shino our studio has had mixed up for 5 years or so and not used. Is it
>still good or do I need to mix a new batch?
>
>pam
>in michigan



I would try it as a test first.

Jeff Brown
http://www.jeffbrownpottery.com

Hank Murrow on tue 3 oct 00


Pam wrote;

I am a lucky puppy. I get to be involved in my first wood fire experience
>at the end of the month. My question is about the Cone 10/11
>shino our studio has had mixed up for 5 years or so and not used. Is it
>still good or do I need to mix a new batch?

Dear Pam;

The reason potters sometimes have to re-mix shinos is that the soluble soda
component changes over time as pots are glazed from the bucket. This is
because solubles are taken up to a greater degree than insoluble materials,
so the 'recipe' actually changes with use. This is very significant when
the glaze contains more than 5% solubles. Of course, if the shino you use
has no solubles(like soda ash), then the glaze should be OK. Hoping you
have a recipe for that shino, Hank in Eugene