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