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Re: [compost_tea] Re: Filtering ACT



I'm relating all this to the reporting method in SFI's compost tea reports.  They use the  term (ug/ml) but I suppose you're correct that it is on a wet basis because they start with 1 ml of tea.  So the 0.67oz. of microbes produced are wet slimy guys. The compost report seems to be adjusted to a dry weight basis.  So, to compare the microbes in the starting materials to those in the finished product we have to know the weight of the water in the microbes from the tea.  And, back to the orginal point about adding sugar, 2 ounces of syrupy molasses is producing much less than the 0.67 I stated.  Am I right yet?   I really do want to compare what is in the compost a the start to what is measured in the tea by the lab.  Am I growing stuff or just extracting it??
 
Dave
----- Original Message -----
Sent: Thursday, August 28, 2003 8:18 PM
Subject: [compost_tea] Re: Filtering ACT

---Dave in the ex.  below you converted volume to mass. Therefore
0.67 oz.(mass if you will allow me) in 25 gallons would convert to
200ppm (mass).  What I'm wondering is are those microorganisms dry or
wet? I'm guessing they're filtered and wet. Dennis


In compost_tea@yahoogroups.com, "David Loring" <dloring3@c...> wrote:
> Dennis - The SFI report for compost gives the dry weight of 1 gram
of the fresh material so I've always assumed the whole report was on
a dry weight basis. The tea report is in ug/ml so there it is on a
dry weight basis for the microbes also, at least that is how I've
always read it.  Sound correct?
>
> Dave
>   ----- Original Message -----
>   From: dkemnitz2000
>   To: compost_tea@yahoogroups.com
>   Sent: Wednesday, August 27, 2003 5:08 PM
>   Subject: [compost_tea] Re: Filtering ACT
>
>
>   --- In compost_tea@yahoogroups.com, "David Loring"
<dloring3@c...>
>   wrote:
>   > Alex - There is a poll on this compost tea site on addition of
>   molasses, have a look.  Right, 2oz. is not much in 25 gals but
the
>   tea was analysed and had good numbers for both active and total
>   bacteria.  Active bacteria at 200ppm is only about 0.67 ounces of
>   bacteria in 25 gals.  It's not hard to imagine that 2 oz. of
sugar
>   can grow way more than 0.67 ounces of total bacteria.  It goes
>   something like this for 25 gals of tea:
>   > 25gals x 8.35pounds/gal x 16oz/pound = 3,340 ounces of tea x
>   0.000200 (200ppm recommended active bacteria) = 0.668oz. AB
>   >
>
>   <><><><><><<>Hey Dave, So using the above calculation(example)
the
>   bacteria are weighed.  Is that right?  200ppm active bacteria in
25
>   gallons water weigh 0.67 oz. Would they be dried or  as is,
basis?  
>   That's interesting. Dennis
>
>
>
>
>
>   I'm not sure why the basic recipe in the Compost Tea Brewing
Manual
>   calls for 16 ounces of molasses/50 gal brew.  It will certainly
grow
>   a lot of bacteia at just 0.2 percent of 50 gals.  I understand
that
>   the 5% rate is meant to actually inhibit the bacteria for a
fungal
>   brew.
>   >
>   > Dave
>   >   ----- Original Message -----
>   >   From: alex de mello
>   >   To: compost_tea@yahoogroups.com
>   >   Sent: Wednesday, August 27, 2003 2:06 PM
>   >   Subject: [compost_tea] Re: Filtering ACT
>   >
>   >
>   >   dave: thx for the info... but 2oz. in 25 gal, isn't that like
>   0,06% molasses? that would be far from the 5% I recall reading as
a
>   max. here in this forum...
>   >   
>   >   >Subject: Re: Re: Filtering ACT
>   >
>   >   Alex - Maybe there are paint filters with different size
holes? 
>   I can filter five gallons about as quickly as it comes out of my
50
>   gal tank, maybe 30 seconds.  I put the 5 gal pail below the
brewer
>   outlet valve and hold the filter bag so the stream of tea passes
>   through it.  A little shaking is needed sometimes to keep the
>   materials moving to the bottom of the bag.  I don't substitute
>   anything for molasses, just use less of it.  I've had good SFI
>   numbers using 2oz. molasses in 25 gals of tea starting with a few
>   pounds of vermicompost.
>   >   Dave
>   >
>   >
>   >   alex de mello
>   >
>   >
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