bradsul said:You can't really measure a compactable material by volume unless you know the density of the packed material you're measuring. Just go to a dollar store and get a cheap scale, close is good enough for priming sugar.
A scale is one of those really handy things in brewing, you might want to spend $20 or so and get a half decent one.
Jesse17 said:Here's your google welfare check...
There is 28.35 g in one oz (weight), so if you want 4 oz then you would want 113.4 g. (4 oz x 28.35 = 113.4 g.)
According to wikpedia, dextrose/glucose weighs 1.54 g cm³.
There's 29.57 cm³ per oz. (volume) so to if you multiply 1.54 g x 29.57 you get 45.54. This means that dextrose weighs 45.54 g. per oz (volume).
Therefor, if you want 4 oz (weight) which equals 113.4 g. then you would divide your (desired amount of dextrose in g.) by the (weight in g. per oz. in volume) to find how many oz (volume) of dextrose to use. (113.4 / 45.54 = 2.49 oz. (volume))
8 oz. (volume) per cup means that 2.49 oz. = 0.311 cups which is about 1/3 C. of dextrose = 4 oz (weight)
Or 141.75 / 45.54 = 3.112 oz. (volume) = 0.389 cups dextrose = 5 oz (weight).
I don't know what size batch you're doing, but you usually use 3/4 C dextrose for a 5 gal. batch. So one of three things is happening here. 1. I messed up on my math, 2. You're doing a 2.5 - 3 gal. batch, or 3. 4-5 oz. dextrose isn't enough priming sugar.
Hope this helps ya out.
You're right Brad. I wasn't taking into account that some people compact when measuring...I'm not a compacter...bradsul said:You can't really measure a compactable material by volume unless you know the density of the packed material you're measuring. Just go to a dollar store and get a cheap scale, close is good enough for priming sugar.
A scale is one of those really handy things in brewing, you might want to spend $20 or so and get a half decent one.
What's that emotion/smiley suppose to mean?GaryA said:
To split hairs, you'd also have to take into account moisture content of the dextrose. This can alter the weight & thus volume. I got a digital scale in the Walmart kitchen needs isle for 20 bucks. makes life easier with grains, hops, sugars, extracts, etc...
I’ve been using the More Beer and Northern Brewer calculators and they give me 3.9 and 3.6 oz dextrose for 5 gallons carbonated to 2.2 volumes of CO2 at 68F. They say this is 0.5 cups. My beer is totally flat after 2 weeks. These calculators are way off. From now on I’m using 2/3 cup (British ales) or 3/4 cup lagers.
https://www.homebrewtalk.com/threads/bottle-cap-size.723726/12 oz bottles with 4 or 5 pint bottles. I have a few manual cappers I use.
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