Calcium sulfate: Difference between revisions
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Calcium sulfate (CaSO<sub>4</sub>•2H<sub>2</sub>O, also known as '''gypsum''') is one of the main brewing salts used for [[water mineral adjustment]] because it is a good source of both [[calcium]] and [[sulfate]], both of which are commonly desired in the [[water|brewing water]]. Calcium sulfate can be used in combination with [[calcium chloride]] to control the sulfate:chloride ratio of the water and the resulting hoppy-malty balance of the beer. | |||
== Products available online == | |||
To encourage quick dissolution, the gypsum should be purchased as a finely ground powder.<ref name=hob10>Ryder DS. [https://www.taylorfrancis.com/chapters/edit/10.1201/9781351228336-10/processing-aids-brewing-david-ryder Processing aids in brewing.] In: Stewart GG, Russell I, Anstruther A, eds. [[Library|''Handbook of Brewing.'']] 3rd ed. CRC Press; 2017.</ref> Always buy '''food grade''' brewing salts. | |||
*{{amazon|B07G8QDYP2|Pure (via Amazon)}} - 4 oz, 11 oz, 2 lb, 5 lb, 10 lb | |||
*{{amazon|B084D4JMDB|North Mountain Supply (via Amazon)}} - 1.5 lb | |||
*{{MB|gypsum-calcium-sulfate}} - 2 oz, 1 lb, 5 lb, 50 lb | |||
==References== | == Usage == | ||
Calcium sulfate should be added with good mixing. It can be added to the mash as a concentrated slurry or directly but slowly to the mash as it is being stirred.<ref name=hob10/> | |||
== Chemical characteristics == | |||
Calcium sulfate has limited solubility in water, around 2 g/L, with max solubility around 104°F (40°C).<ref name=water>Palmer J, Kaminski C. [[Library|''Water: A Comprehensive Guide for Brewers.'']] Brewers Publications; 2013.</ref> | |||
Calcium sulfate salt has 2 water molecules incorporated into the crystalline structure, which is why it is technically called "calcium sulfate dihydrate". Molecular weight is 172.17 g/mol. | |||
== See also == | |||
* [[Water mineral adjustment]] | |||
* [[Water]] | |||
== References == | |||
Revision as of 20:25, 15 May 2024
Calcium sulfate (CaSO4•2H2O, also known as gypsum) is one of the main brewing salts used for water mineral adjustment because it is a good source of both calcium and sulfate, both of which are commonly desired in the brewing water. Calcium sulfate can be used in combination with calcium chloride to control the sulfate:chloride ratio of the water and the resulting hoppy-malty balance of the beer.
Products available online
To encourage quick dissolution, the gypsum should be purchased as a finely ground powder.[1] Always buy food grade brewing salts.
- Pure (via Amazon) - 4 oz, 11 oz, 2 lb, 5 lb, 10 lb
- North Mountain Supply (via Amazon) - 1.5 lb
- MoreBeer - 2 oz, 1 lb, 5 lb, 50 lb
Usage
Calcium sulfate should be added with good mixing. It can be added to the mash as a concentrated slurry or directly but slowly to the mash as it is being stirred.[1]
Chemical characteristics
Calcium sulfate has limited solubility in water, around 2 g/L, with max solubility around 104°F (40°C).[2]
Calcium sulfate salt has 2 water molecules incorporated into the crystalline structure, which is why it is technically called "calcium sulfate dihydrate". Molecular weight is 172.17 g/mol.
See also
References
- ↑ a b Ryder DS. Processing aids in brewing. In: Stewart GG, Russell I, Anstruther A, eds. Handbook of Brewing. 3rd ed. CRC Press; 2017.
- ↑ Palmer J, Kaminski C. Water: A Comprehensive Guide for Brewers. Brewers Publications; 2013.