Search found 123 matches

by Silver_Is_Money
Wed Jan 29, 2020 11:54 am
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

How does this look:
Brown Beers Recipe.png
by Silver_Is_Money
Tue Jan 28, 2020 11:16 pm
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

CRS and AMS are the same thing. All that has happened as I understand it is a name change.
by Silver_Is_Money
Thu Jan 23, 2020 12:08 pm
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

You could take a Brix scaled refractometer reading of it: Grams of CaCl2 per Liter of solution = 5.9392*Bx + 0.050098*Bx^2 -0.00018856*Bx^3 + 4.7399e-06*Bx^4 (where Bx = Brix) I just discovered an easy way to drop this formula into a spreadsheet without ever needing to touch the formula itself. 1) ...
by Silver_Is_Money
Wed Jan 22, 2020 12:14 pm
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

14.9 Brix = 1.08033 S.G. Try hitting it with your hydrometer again. Thanks. I hadn't suspected my refractometer had gone out of calibration. But all the information I can find puts 14.9 BRIX as SG 1.060-61? 14.9 BRIX = 1.0607 S.G. is correct for sugar water, but certainly not for calcium chloride w...
by Silver_Is_Money
Wed Jan 22, 2020 11:46 am
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

ASTM and ISO both agree that specific gravity = density/0.9976

https://www.intertek.com/polymers/testl ... astm-d792/
Density, kg/m3 = (specific gravity) x (997.6
by Silver_Is_Money
Wed Jan 22, 2020 1:41 am
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

14.9 Brix = 1.08033 S.G.

Try hitting it with your hydrometer again.
by Silver_Is_Money
Wed Jan 22, 2020 1:35 am
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

100.48/100 x 26.73 = 26.8583 g.

26.8583/25 = 1.07433 density

1.07433/0.9976 = 1.07692 S.G.

Closer.
by Silver_Is_Money
Wed Jan 22, 2020 1:30 am
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

Everything points to the SG being near 1.081, except your scale method.

S.G. = Density/0.9976

That brings your calculated S.G. up a tad, but not enough.

I'd wager that not 1 in one hundred know that S.G. is not exactly the same thing as g/CC (density).
by Silver_Is_Money
Tue Jan 21, 2020 7:05 pm
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

You've just put off a dozen home-brewers from going any where near a refractometer! :? The ones who realize that Refractometers are scaled specifically to directly read the concentration of "sugar in water" solutions will consider it appropriate that some degree of math is required to make them pro...
by Silver_Is_Money
Tue Jan 21, 2020 5:52 pm
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

15.2 Brix would equate to 101.44 grams of anhydrous CaCl2 per Liter. That seems to be well in line with what you added. It also equates nigh on perfectly well to your original 1.082 S.G. reading.
by Silver_Is_Money
Tue Jan 21, 2020 4:46 pm
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

Your CaCl2 solution, if 1.072 S.G. at 20 degrees C, should be 13.44 Brix.
by Silver_Is_Money
Tue Jan 21, 2020 4:26 pm
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

I've double checked the 'MME' formula for computing CaCl2 addition quantities via S.G., and I find no fault in it. PeeBee, are you finding it at fault?

To give credit where credit is due, the formula I'm using in 'MME' was developed by A.J. deLange.
by Silver_Is_Money
Tue Jan 21, 2020 4:24 pm
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

You could take a Brix scaled refractometer reading of it:

Grams of CaCl2 per Liter of solution = 5.9392*Bx + 0.050098*Bx^2 -0.00018856*Bx^3 + 4.7399e-06*Bx^4

(where Bx = Brix)
by Silver_Is_Money
Tue Jan 21, 2020 10:50 am
Forum: Brew in a Bag
Topic: Ro or tap
Replies: 200
Views: 11381

Re: Ro or tap

1,000 mL x 1.082 = 1,082 grams

100 grams/1,082 grams = 9.2421% by weight concentration. Not 10% by weight.

Percent by weight concentration seems to be an awkward means of handling this, as most will likely make the very same intuitive error.
by Silver_Is_Money
Mon Jan 20, 2020 11:18 am
Forum: Brewing Liquor
Topic: How to guess your waters Ca and Mg if all you know is its Hardness
Replies: 3
Views: 651

Re: How to guess your waters Ca and Mg if all you know is its Hardness

You could check if this is correct by entering the same information into Graham's calculator on this forum. It will never be "correct" sans for blind luck. But it is fairly close often enough. All it can tell you is that if your water is "average" for its given level of total hardness this is what ...