Strike Water: 72°C
Hold at 66°C to 67°C for 90 minutes
what temperature did you mash at?
it sounds like you mashed at a higher temperature (155-160 F) (68°C - 71°C.) when you
mash, there are two types of amylase enzymes active, alpha and beta. the
amylase enzymes basically cleave your starch molecules (very large
polysaccharides) into shorter saccharide chains to form your sugars in
your wort. one of these amylases is more active at lower mash
temperatures (149-152 F) (65°C - 67°C) and the other is more active at higher mash
temperatures. the one that is more active at lower temps cleaves sugars
that yeast easily convert to alcohol, whereas the other one which is
more active at higher temps cleaves sugars that yeasts are unable to
turn into alcohol.
both types of these sugars contribute to your O.G. however, your F.G. reflects what type of sugars contributed more to your O.G.
in your case, it sounds like you had more high temperature sugars that
were unable to be converted to alcohol (gravity ~ 1.00). these sugars
will contribute to the mouth feel and body of the beer (which is MUCH
more important in my opinion).
that's my take on it. there are also other factors that may be
contributing. what is your fermentation temp? fermentation occurs at
much lower rates at lower temps. fermentation can continue occurring
after 9 days as well!
__________________
Saturday, August 9, 2014
Tuesday, August 5, 2014
calendar
26 July, beer in 4 fermenters
5 August, transferred #3 to secondary
5 August, beer in fermenters 5 & 6 using yeast from #3.
9 August, bottled fermenters 1 thru 4.
Primed with table sugar directly in the bottle:
(8) .5 liter @ 1.25t
(18) 1.5 liter @ 3.2t
(8) 2 liter @ 4.25t
(1) 2.25 liter @ 5t
5 August, transferred #3 to secondary
5 August, beer in fermenters 5 & 6 using yeast from #3.
9 August, bottled fermenters 1 thru 4.
Primed with table sugar directly in the bottle:
(8) .5 liter @ 1.25t
(18) 1.5 liter @ 3.2t
(8) 2 liter @ 4.25t
(1) 2.25 liter @ 5t
Saturday, August 2, 2014
I forgot what day I put the latest batch into the FV. I think it was Saturday, July 26th. That would make it two weeks ago today.
The BRY-97 was slow to start like everybody says ...but fermentation got going very strongly after a few days and after stationing it next to the space heater 2 or 3 days, it took off like a bat out of hell.
All balloons are down, right now. Hardly a burble.
I still have 20 liters more wort; I want to decant a barrel into a secondary ...then pour the wort directly onto the yeast cake.
I hope I won't need a blow-off tube for that.
The BRY-97 was slow to start like everybody says ...but fermentation got going very strongly after a few days and after stationing it next to the space heater 2 or 3 days, it took off like a bat out of hell.
All balloons are down, right now. Hardly a burble.
I still have 20 liters more wort; I want to decant a barrel into a secondary ...then pour the wort directly onto the yeast cake.
I hope I won't need a blow-off tube for that.
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