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Re: [new_distillers] Sugar washes still failing - need a troubleshooter

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  • klcampbell
    G day Doc,with a S.G. of 1.100,exactly how many litres does that amount to?.Could just be that the sugar concentration is too high for the yeast except for one
    Message 1 of 4 , Mar 27, 2002
      G'day Doc,with a S.G. of 1.100,exactly how many litres does that amount
      to?.Could just be that the sugar concentration is too high for the yeast
      except for one of the distillers or turbo styles,just a thought,Regards,Ken.

      ----- Original Message -----
      From: "Dr. M. Legendre" <distiller@...>
      To: <new_distillers@yahoogroups.com>
      Sent: Wednesday, 27 March 2002 9:27
      Subject: [new_distillers] Sugar washes still failing - need a troubleshooter


      > Thanks to everyone who contributed advice on my first go-round with this
      > problem. I'd like to say that things were working, but they're not - and I
      > guess I need someone to take a hard look at my process. Here is what I
      > have to date..
      >
      > Started with clean containers, good hot soap and water washing. I didn't
      > use bleach this time around, as I was suspect that residual bleach migh be
      > killing my yeast.
      >
      > Mixed up 10lb sugar, 1T acid blend and enough water to bring it to
      > sg1.100. Only boiled the wash about 5 min, just enough to disolve really
      > well, but probably not much inversion took place. Added 5t yeast nutrient
      > (labeled 'Ammonium Phosphate and food-grade Urea - 1t per gallon of must)
      > and disolved it.
      >
      > Now the wash was aerated with the hardware I assembled for this purpose..
      > Small (500cc/min?) aquarium pump and airstone, on the end of a rigid tube
      > so I could keep the stone at the bottom of the wash. Bubbled away for 30
      > minutes, after which there were noticeable air bubbles lining the walls of
      > the fermenter. Good enough.
      >
      > Waited till wash cooled to 92f then added 1 5g packet of Lalvin EC-1118
      > which had been rehydrated exactly according to packet instructions. Kept
      > at 70-74f for two days, stirring twice daily. Saw minimal activity which
      > died off by the third day. All the yeast was on the bottom of the
      > fermenter, like it was dead.
      >
      > Ok, let's try to get it going with a starter. Took 500cc of the wash and
      > boiled it. When cool (74f) added 1 5g package of Lalvin EC-1118 which was
      > hydrated exactly according to package directions. Within an hour, this was
      > foaming, and by three hours later, the foam cap was pushing out the top of
      > the starter jar. At 14 hours or so, I pitched this into the wash. Results
      > were about the same as in the last paragraph. Four more days have elapsed,
      > and bubbling is very infrequent (30 sec - 1min). Once again, the yeast is
      > all on the bottom.
      >
      > Why am I not getting a vigorous, even violent, initial fermentation? When
      > I do get fermentation started, why does it take 4-6 weeks to complete, if
      > it does complete?
      >
      > Answer these questions, earn my undying gratitude.
      >
      > Thanks so much,
      > -- Dr. M. Legendre
      >
      >
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