Epsom Salt (Magnesium Sulfate)

Epsom Salt (Magnesium Sulfate)

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Epsom is used to add sulfate and magnesium ions to brewing water. It is often used at half the levels of Gypsum. 1 gram in 1 gallon changes the salt levels by 103 ppm sulfate, 26 ppm Magnesium and adds 108 ppm to the hardness.

Promash is a useful utility to calculate water salts.

Epsom salt is also ideal as a nutrient source for growing hop plants.

Community Q&A

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Christmas gift
Ashley R on Nov 19, 2021
Ive used this before
clayton M on Oct 27, 2021
Christmas gift
Ashley R on Nov 19, 2021
Part of brewing water profile ingredient
F G on Nov 18, 2021
Ive used this before
clayton M on Oct 27, 2021
make a beer
Andres M on Oct 26, 2021
to recreate water profile
Robert W on Sep 30, 2021
Julius clone recipe
Zafra W on Aug 10, 2021
MoreFlavor in my beer
Chris Dornbach on Jul 2, 2021
water salt
Chuck Beckman on Jun 23, 2021
Adj RO water
DAVID S on Jun 19, 2021
Brewing some IPA
Andrew S on Jun 11, 2021
improve water chemistry
Jay K on Jun 9, 2021
Ease and price
Brad S on May 5, 2021
Water treatment
Michael F on Apr 28, 2021
Creating a water profile
A M on Apr 23, 2021
Water adjustments
Kenny Lyons on Mar 30, 2021
water treatment for brewing
Sean N on Mar 25, 2021
For brewing beer
Cole C on Mar 16, 2021
replenishment - water adjustments
Charlie H on Mar 12, 2021
To trest water depending on the style, already using, gypsmu, calcium sulfate and calcium chloride as well as fosforic acid
Fernando S on Mar 6, 2021
Brewing water chemistry
Valued C on Feb 1, 2021
Same as above
Matthew S on Jan 23, 2021
for water adjustments
Roberto M on Jan 23, 2021
upping my water game
Caleb C on Jan 23, 2021
Water Treatment
Steve H on Jan 19, 2021
water adjustments
JS Metalcraft on Dec 17, 2020
Adjusting water chemistry
Michael P on Oct 30, 2020
Trying an Alchemist recipe
Rich P on Oct 26, 2020
Water adjustment
mark searle on Oct 23, 2020
Resupply of low quantity in brew kit
Skip on Oct 20, 2020
Water Profile
Gary E N on Oct 7, 2020
It’s a must for every brewer
Bojdan Statutiak on Oct 6, 2020
Coffee and brewing water profiles
jordan powell on Oct 2, 2020
To make homemade electrolyte powder
Erica L R on Sep 1, 2020
water additions
Manuel P on Aug 29, 2020
The usual reason
Christoffer Z on Aug 15, 2020
I need a little more Magnesium in my water profile.
Mike W on Aug 11, 2020
water profile
Ethan H Schneider on Aug 6, 2020
Brewing beer
James Folkers on Aug 3, 2020
Water Conditioning
Byron G C on Jul 31, 2020
water chemistry
Erich K on Jun 20, 2020
magnesium is non-existent in my water
Matt S on Jun 4, 2020
David G H on May 26, 2020
Water profile
Brennan M on May 21, 2020
Water Chemistry
Sean M S on May 6, 2020
Water Chemistry
Nicholas M on May 2, 2020
water adjustment
Nathan H on Apr 17, 2020
For a hard seltzer recipe
Robert P on Apr 14, 2020
Getting into water treatment
Brad W on Apr 11, 2020
building up water profile
Rob Smith on Apr 8, 2020
To adjust my water profile
Micky B. on Apr 7, 2020
Part of brewing water profile ingredient
F G on Nov 18, 2021
make a beer
Andres M on Oct 26, 2021

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
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1 Star
Rated 5 out of 5
Epsom Salt
First time adjusting water chemistry. Worked great.
June 17, 2021
6 months ago
Rated 5 out of 5
Should work just fine
Using it for brewing beers!
June 24, 2019
over 2 years ago