mggray87
Well-Known Member
What scale is accurate for lbs,oz for malt and grains and oz for hops. I figured one scale for lbs for the malt and one for hops and accurate oz??
I saw the anvil on Morebeer. I may get that for the grains. But need something for Oz and grams for salts and hopsI've been on a brewing hiatus till I can build a more 'accessible' brew-rig, but I've been regularly using the Anvil grain scale for filling kegs brewed at my LHBS and I can vouch for it's accuracy on the heavier side. I use it it set to metric because 1kg of water = 1L, and after calculating weight/FG it's always spot-on getting exactly 5G in my kegs.
My hop scale was just a well-reviewed one off Amazon, but I don't entirely trust it so I look forward to hearing specific recommendations for one to replace it.
I just ordered the large anvil scale for lbs from morebeer. I'm wondering if it will work for my closed pressurized transfers. Tare the 5g kegs with co2 in them and then fill them? Spunding valve letting CO2 out as it forces the beer in? Sounds like putting beer in pushing CO2 out won't throw off scale or accurate weight?I find this scale useful for small amounts where 0.1 gram matters. It display increments of 0.01 gram. So it gives me confidence in things I'm only concerned about the tenth of a gram.
https://www.amazon.com/gp/product/B00WU2KWWC/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
It's also give me repeatable results when I weight the same item several times. So it replaced another cheap'o scale I'd gotten before for about the same amount of money.
For the other stuff, my kitchen scale gives me plenty of range for the 2.5 gallon batches and less that I brew at a time. Homedics is the current scale, but when it's time to replace it might be a Taylor
Ok just the idea of releasing CO2 weight for beer weight seems it wouldn't be accurate compared to a empty keg purged empty. But pressurized say keg at 8psi to conical 10psi for carbonated transfers. it's all new to me hahaThat's similar to how I do my closed transfers, make sure you tare after hooking up the transfer hose. Not a huge weight difference but its there.
Haha good point. And your right. But I got issues with trying to be perfect. Ocd. It's an issue but I'm sure over time I'll just be throwing stuff around lolI use a cheap Amazon kitchen scale and a cheap Amazon milligram scale. I'm making beer, not rocket fuel.
I see, I transfer under lower pressure so I don't worry about the offset of weight of co2... that's beyond my knowledge, maybe a question for @doug293czOk just the idea of releasing CO2 weight for beer weight seems it wouldn't be accurate compared to a empty keg purged empty. But pressurized say keg at 8psi to conical 10psi for carbonated transfers. it's all new to me haha
thought I would easily calculate this, but now rethinking....I see, I transfer under lower pressure so I don't worry about the offset of weight of co2... that's beyond my knowledge, maybe a question for @doug293cz
Ok, I of course neglected that a pressure gauge measures pressure over atmospheric (duh), so I left out the initial charge of CO2 before pressurization. So for 8 psi of pressure on the gauge, this would be 52.6 g of CO2. However your keg might not be exactly 5 gals....thought I would easily calculate this, but now rethinking....
I haven't measured my new kegs. Haven't used them yet. Ahah they are the kegland 5g pony kegs.Ok, I of course neglected that a pressure gauge measures pressure over atmospheric (duh), so I left out the initial charge of CO2 before pressurization. So for 8 psi of pressure on the gauge, this would be 52.6 g of CO2. However your keg might not be exactly 5 gals....
A 5 gal keg has a total internal volume very close to 20L (5 gal = 19L.) CO2 at atmospheric pressure and 0°C (32°F) has a density of 1.977 g/L, so a keg filled with 100% CO2 would have 20 * 1.977 = 39.54 g (~1.4 oz) of CO2. At 20°C (68°F) the weight of CO2 would be 39.54 g * 273.15 / (273.15 + 20) = 36.83 g (1.3 oz.) At 10 psig, the CO2 weights would be: 39.54 * (10 + 14.7) / 14.7 = 66.44 g (~2.34 oz), and 36.83 * (10 + 14.7) / 14.7 = 61.88 g (2.18 oz.)I see, I transfer under lower pressure so I don't worry about the offset of weight of co2... that's beyond my knowledge, maybe a question for @doug293cz
copy ill ignore it thats good to know how to get weight of a specific gravity beer. im writing that down LOLA 5 gal keg has a total internal volume very close to 20L (5 gal = 19L.) CO2 at atmospheric pressure and 0°C (32°F) has a density of 1.977 g/L, so a keg filled with 100% CO2 would have 20 * 1.977 = 39.54 g (~1.4 oz) of CO2. At 20°C (68°F) the weight of CO2 would be 39.54 g * 273.15 / (273.15 + 20) = 36.83 g (1.3 oz.) At 10 psig, the CO2 weights would be: 39.54 * (10 + 14.7) / 14.7 = 66.44 g (~2.34 oz), and 36.83 * (10 + 14.7) / 14.7 = 61.88 g (2.18 oz.)
So, you can make an adjustment if you want, or just ignore it since 5 gal of 1.010 beer weighs 5 * 8.33 * 1.010 = 42.07 lb or 673 oz, and 2.34 oz is only 0.35% of the total.
Brew on
Enter your email address to join: