Sulfite Strip Test

Infusion, Decoction, Step, etc

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lupulus
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Re: RE: Re: Sulfite Strip Test

Postby lupulus » Fri Mar 17, 2017 10:14 am

Ancient Abbey wrote:The experiment was run at 100mg/L SMB, which should be a reading of ~76 ppm sulfite. The measurement after doughin in looks in between 25-50 mg/l. I tried to lay the strip on the color if it was dead on, and in the gap if I though it was between readings. That reading could have been as low as 25 mg/l and as high as 50 mg/l. So, yeah the initial reduction was in the 25-50mg/l range. I will say, this was done as I was building my system, i.e., before replacing all my fittings with TC, pre-mash cap, etc. I don't think anyone is seeing a 50ppm drop anymore, and are definitely on the low end of sulfite consumption, consistent with Narziss.

Thanks Abbey!

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Weizenberg
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Re: Sulfite Strip Test

Postby Weizenberg » Fri Mar 17, 2017 1:55 pm

Milling is a very big contributor to malt oxidation. In my books, it's the biggest contributor bar dissolved oxygen in mash liquor.

Sadly, a dispersion mills such as the Meura (I really like this company) Hydromill is a notch out of my budget.
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Bryan R
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Re: Sulfite Strip Test

Postby Bryan R » Fri Mar 17, 2017 2:01 pm

Weizenberg wrote:Milling is a very big contributor to malt oxidation. In my books, it's the biggest contributor bar dissolved oxygen in mash liquor.

Sadly, a dispersion mills such as the Meura (I really like this company) Hydromill is a notch out of my budget.



I mill into a bucket has a carbonation stone in the bottom. It is fed by a nitrogen tank, that is set to 10psi. I then put a cap on the bucket after milling and continue to purge. Simultaneously the nitrogen is purging all my lines and vessels on the brew system. I then add the grain to the tun and repeat the purge until dough in. I am down to a 10ppm sulfite dose.
caedus
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Re: Sulfite Strip Test

Postby caedus » Fri Mar 17, 2017 2:30 pm

Why not mill directly into the mash tun? That's my next mini project is making a temp lid for the mill to rest on while I crush into the mash tun, while it has CO2 flowing up from under the false bottom.
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Re: Sulfite Strip Test

Postby Bryan R » Fri Mar 17, 2017 2:58 pm

caedus wrote:Why not mill directly into the mash tun? That's my next mini project is making a temp lid for the mill to rest on while I crush into the mash tun, while it has CO2 flowing up from under the false bottom.



My mill is stationary :(
caedus
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Re: Sulfite Strip Test

Postby caedus » Fri Mar 17, 2017 3:02 pm

Bryan R wrote:
caedus wrote:Why not mill directly into the mash tun? That's my next mini project is making a temp lid for the mill to rest on while I crush into the mash tun, while it has CO2 flowing up from under the false bottom.



My mill is stationary :(


Says the guy who rebuilt his entire plumbing system on a whim haha

I love having mills to be set up with a motor and all (we have 3 set up where I work for customers) but I enjoy having a portable one at home because I have a little more freedom.
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Re: Sulfite Strip Test

Postby Bryan R » Fri Mar 17, 2017 3:13 pm

heh, this is true!
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Weizenberg
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Re: Sulfite Strip Test

Postby Weizenberg » Fri Mar 17, 2017 3:14 pm

Even when set up with a motor it's possible to mill straight into the tun. I did that for years until recently. It will revert pretty soon .
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caedus
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Re: Sulfite Strip Test

Postby caedus » Fri Mar 17, 2017 4:02 pm

Did you set it up with an auger? I have been playing with the idea to do some sort of DIY chain augur for years now.
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Weizenberg
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Re: Sulfite Strip Test

Postby Weizenberg » Fri Mar 17, 2017 6:42 pm

Hmmm, why do you think that's needed?

One can do all sorts of DIY projects. In my case, a wooden board with the mill over the mash tun filled with water is sufficient.

I do have the agitator running gently. This prevents clumps.
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