Digital scales

[Galena]

I am looking for digital scales for weighing out salt additions, so ideally it needs to be able to weigh very small amounts in increments of 0.1 milligrams?
Anyone have any recommendations?

 

[An Ankoù]

0.1 mg is serious laboratory grade stuff. 0.1 g is what you need for brewing water chemistry and hop additions. This is what I bought. Perhaps not the best, but it works just fine:
https://www.amazon.co.uk/gp/product/B01JKX4QAC/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1

 

[user 18729]

You can get some cheap ‘drug dealer’ scales on eBay/amazon. I use these- Ascher 200 gram Portable Digital Pocket Scale with Back-lit LCD Display 200x0.01 gram Black Ascher 200 gram Portable Digital Pocket Scale with Back-lit LCD Display 200x0.01 gram Black:Amazon.co.uk:Office Products

 

[nixhaz]

Am I the only one that gets a weird kick out of measuring out tiny amounts of white powder on drug dealer scales?
I bought this one because I needed the calibration weight anyway, so it kind of justified the extra cost..
https://www.amazon.co.uk/gp/product/B071GYVQF3/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

 

[Galena]

Am I the only one that gets a weird kick out of measuring out tiny amounts of white powder on drug dealer scales?
I bought this one because I needed the calibration weight anyway, so it kind of justified the extra cost..
https://www.amazon.co.uk/gp/product/B071GYVQF3/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

They do look nice, unavailable though on Amazon it seems

 

[nixhaz]

Hmm, these might be the same? Hotloop Premium High Precision Digital Milligram Scale, 50 x 0.001g Reloading Jewelry Scale with Case, Tweezer, Calibration Weight and Weighing Pan, Pocket Size, Black:Amazon.co.uk:DIY & Tools

 

[Galena]

0.1 mg is serious laboratory grade stuff. 0.1 g is what you need for brewing water chemistry and hop additions. This is what I bought. Perhaps not the best, but it works just fine:
https://www.amazon.co.uk/gp/product/B01JKX4QAC/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1

Thanks , yes my error on the mg and thinking about it I did mean g

 

[Galena]

Hmm, these might be the same? Hotloop Premium High Precision Digital Milligram Scale, 50 x 0.001g Reloading Jewelry Scale with Case, Tweezer, Calibration Weight and Weighing Pan, Pocket Size, Black:Amazon.co.uk:DIY & Tools

Yes they look the same, though the reviews are not so good, it seems getting decent scales is as difficult a task as a pH meter

 

[Buffers brewery]

I use these..
https://www.amazon.co.uk/dp/B01JZXRT6A/ref=dp_cerb_1

 

[Harry Bloomfield]

You can get some cheap ‘drug dealer’ scales on eBay/amazon. I use these- Ascher 200 gram Portable Digital Pocket Scale with Back-lit LCD Display 200x0.01 gram Black Ascher 200 gram Portable Digital Pocket Scale with Back-lit LCD Display 200x0.01 gram Black:Amazon.co.uk:Office Products

I bought a set of those, along with a set of calibration weights - to make up e-liquid. The scales were spot on accurate.

 

[Harry Bloomfield]

They do look nice, unavailable though on Amazon it seems

Try Ebay, but there might be a wait for delivery from cn.

 

[strange-steve]

Just search amazon for jewellery scales, there's dozens with 0.01g resolution. That being said though, that is probably a lot more accurate than it really needs to be for water treatment salts. I don't even weigh mine anymore, I use measuring spoons.

 

[Galena]

Just search amazon for jewellery scales, there's dozens with 0.01g resolution. That being said though, that is probably a lot more accurate than it really needs to be for water treatment salts. I don't even weigh mine anymore, I use measuring spoons.

hmmm yes there's another idea, which to go for I wonder, scales or spoons

 

[Hoppyland]

I bought mine off eBay - cheap as chips Chinese, but work perfectly. They are branded "RoyalTec" (probably totally meaningless, possibly even extinct by now!) and weigh up to 200g with a purported 0.01g accuracy.
Perhaps surprisingly, they are very accurate, certainly more so than I'll ever need. Oh, and don't go buying calibration weights. Use coins:
5p = 3.25g, 10p = 6.50g 2p = 7.12g, £1 = 9.50g, £2 = 12.00g (I think I'm up to date on the £1 coin)

 

[Galena]

I bought mine off eBay - cheap as chips Chinese, but work perfectly. They are branded "RoyalTec" (probably totally meaningless, possibly even extinct by now!) and weigh up to 200g with a purported 0.01g accuracy.
Perhaps surprisingly, they are very accurate, certainly more so than I'll ever need. Oh, and don't go buying calibration weights. Use coins:
5p = 3.25g, 10p = 6.50g 2p = 7.12g, £1 = 9.50g, £2 = 12.00g (I think I'm up to date on the £1 coin)

I heard coins were unreliable because they lose weight with use and wear? Mind you probably so minute as to not bother the brewer.
Out of interest what is the absolute minimum they will weight, I know they are .01g increments but will they weigh .01g ?

 

[foxy]

I am looking for digital scales for weighing out salt additions, so ideally it needs to be able to weigh very small amounts in increments of 0.1 milligrams?
Anyone have any recommendations?

Just dilute the salts into a litre pet bottle, gypsum in one calcium in another and use a syringe to administer to mash, keep in the fridge.

 

[Galena]

Just dilute the salts into a litre pet bottle, gypsum in one calcium in another and use a syringe to administer to mash, keep in the fridge.

OK that's an interesting idea, so what concentration do I dissolve at and then how many mls per gram? How long will it last in the fridge

 

[foxy]

OK that's an interesting idea, so what concentration do I dissolve at and then how many mls per gram? How long will it last in the fridge

Calcium chloride CaCl2.2H2O composition by weight 27.2% Ca2+ 48.3% Cl
Calcium chloride dissolve 100 g of CaCl2 in 400 ml of water top up with cold water to540 ml so a 600 ml drink bottle. For my water it is 1:1000 dilution eg. 30 ml for 30 litres 50 ml for 50 litres

Calcium carbonate CaCo3 composition by weight 40% Ca2+ 60% CO3 2-
Add 40 g and top up to 2 litres. For my water 1: 100 dilution

Calcium sulphate CaSO3 composition by weight 23.3% Ca2+ 55.8%SO42-
100g to 2 litres of water. For my water 1:100 dilution.

The last 2 will have to be given a good shake before measuring out because of poor solubility but they will all last indefinitely. Just work out what is needed for your water.

 

[Galena]

The last 2 will have to be given a good shake before measuring out because of poor solubility but they will all last indefinitely. Just work out what is needed for your water.

Thanks, once it arrives I may give that a try

 

[James Sharpe]

I use these scales. They measure up to 300g at 0.1g resolution and also up to 3kg with a 1g resolution. So I use them for my salts, hops, adjuncts, grain, most brewing ingredients.
TANITA KD-320 Digital Kitchen Scale 3kg-Cream:Amazon.co.uk:Kitchen & Home