Hi Jason,
Thanks for the fast reply. Since the bottle of store bought stuff says
"not for drinking," are there any unhealthy contaminants that would still
pass the conductivity test?
The brewed CS is too conductive for my conductance tester, using an
ohmmeter produces a resistance of around 40k ohms. I did wash out the
glass in question thoroughly and then rinsed it with distilled water
before brewing, so there's little chance of anything substantial having
stayed behind on the glass.
On Tue, 4 Jun 2013, Jason wrote:
Hi Andreas:
A PWT reading of 0.5 uS is great... perfect for making CS.
You can also check the pH (although I'm usually dissapointed with store
bought water pH) if you're worried about the quality.
The distilled water that I make at home is 0.3 uS, pH ~7.0.
I think that most of the commercial steam distillers must leave their
production vessels open to air, as it usually tests acidic. However, CO2
doesn't seem to really affect the production process, unless high voltage is
used (which pulls nitrogen from the air into the water, also making the end
product acidic).
Most home brew production setups result in some oxidized silver residue
settling on the bottom of the container.
Test the conductivity of your final brew to be certain that your container
didn't have some residue, and then use a laser light to look for particulate
silver (and see how many, if any, large particles of silver are in the brew).
It's not a perfect science, but with practice you'll be able to tell a
fantastic batch of CS in comparison to a mediocre (or bad) batch.
Kind Regards,
Jason
On 6/4/2013 10:23 AM, Andreas Hahn wrote:
Hi,
I would like to use store-bought distilled water for making CS. Testing
with a conductance meter reveals very low conductance (0.5
microsiemens). Is there any other thing to check?
I made about 200ml CS in a glass with it and it produced a brownish
particulate residue that settled to the bottom. I'm not experienced with
making CS, so I don't know whether this is normal or indicative of bad
water.
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