DIAH Calcium Sulphate 100g

Buy on Amazon
DIAH Calcium Sulphate, commonly known as Gypsum, is a popular water treatment additive used in home brewing to adjust mineral content and enhance beer, cider, and wine character. It helps accentuate hop bitterness, improve clarity, and lower mash pH, making it a versatile tool for fine-tuning your brew water profile. Overall it is a straightforward, affordable ingredient that delivers consistent results for homebrewers looking to replicate regional water chemistry.
Key Features & Specs
| Ingredient | Calcium Sulphate (Gypsum), a naturally occurring mineral salt used as a brewing water additive |
|---|---|
| Weight | 100g, sufficient for multiple batches depending on dosage rate |
| Application | Suitable for beer, cider, and wine making, added directly to the mash, sparge water, or kettle |
| Effect | Raises calcium and sulphate levels in water, accentuates hop dryness and bitterness, and helps lower mash pH |
| Clarity Benefit | Promotes yeast flocculation and improves overall beer clarity and stability |
| Compatibility | Works alongside other brewing salts such as calcium chloride, magnesium sulphate, and sodium chloride for full water profile control |
| Packaging | Supplied in a resealable bag to maintain freshness and prevent clumping during storage |
Best for: Home brewers who want to dial in their water chemistry, particularly those crafting hop-forward styles like IPAs and pale ales that benefit from higher sulphate levels and improved bitterness definition.