Dry residue at 180c?

[Braufather]

Needs some help chaps

Is this the same as bicarbonate? Mixing some tescos Irish spring water with my tap water for a red rye ale tomorrow and thats on the label. First time I’ve come across it.
Google and a search here hasn’t shone much light in it?

 

[YeastFace]

It's how many dissolved solids would be left after the water had been evaporated. I don't think it's particularly useful for brewing liquor calculations. I think mineral waters have to display this on the label.

It's not just bicarbonates, it will include any minerals, salts, cations, anions, metals etc within the water.

 

[Braufather]

Ok cheers. I’ve no idea what the bicarbonate is then as it’s not listed anywhere. God knows what my mash ph will be!

 

[Jim Brewster]

Is it the Slievenamon spring water?
On the Tesco site it lists bicarbonate as 340mg/L

https://www.tesco.ie/groceries/en-IE/products/306805156​

 

[Braufather]

Is it the Slievenamon spring water?
On the Tesco site it lists bicarbonate as 340mg/L

https://www.tesco.ie/groceries/en-IE/products/306805156​

No

Is it the Slievenamon spring water?
On the Tesco site it lists bicarbonate as 340mg/L

https://www.tesco.ie/groceries/en-IE/products/306805156​

No it’s this one. Source is loch neagh