Gypsum 100g (Calcium Sulphate)

Gypsum 100g (Calcium Sulphate)

£2.45
3+ in stock

Gypsum (Calcium Sulphate) 100g, also known as Burton Salts. Lowers mash pH, increases water hardness, and accentuates hop bitterness

Gypsum 100g (Calcium Sulphate)

Gypsum (Calcium Sulphate), also known as Burton Salts, is a brewing mineral used to lower mash pH and increase the permanent hardness of brewing water. It accentuates hop bitterness, giving beer a drier, crisper finish — particularly associated with the pale ales and bitters historically brewed in Burton-on-Trent. Especially useful in soft water areas where the natural mineral content is low. For a softer, fuller mouthfeel with less bitterness accentuation, Calcium Chloride is the contrasting alternative. For a combined Burton-style mineral blend, see DWB (Water Salts) Burton Style Minerals.

Please note: Dosing rate depends on your source water chemistry and target mineral profile — test water pH and hardness before use. For pH reduction without mineral hardness adjustment, see Lactic Acid Powder.

At a Glance

  • Also known as: Calcium Sulphate, Burton Salts
  • Use: lowers mash pH, increases permanent water hardness
  • Effect: accentuates hop bitterness, drier and crisper finish
  • Best for: pale ales, bitters, and hop-forward styles
  • Particularly useful in soft water areas
  • Dose to: water chemistry test and target mineral profile
  • Pack size: 100g

Free Delivery over £85 T&C apply. Click for more information.

Royal Mail
Royal Mail

Orders under 2KG can be shipped with the Post Office
Tracked 24: 1-2 working days – £5.95
Tracked 48: 2-3 working days - £4.95

Tracked Courier
Tracked Courier

Orders over 2KG will be shipped with a courier
Express delivery: 1–2 working days – £8.50
Fully tracked service

Store Collection
Store Collection

Click & collect from our Plymouth shop – FREE
Ready within 2 hours

Delivery times listed above are estimates and are not guaranteed.