21B Specialty IPA: Red IPA
| Calcium Sulphate (gypsum) | 1 tsp in mash |
| Calcium Carbonate | 0.5 tsp in mash |
| Lactic acid (88%) | ~0.5 tsp in sparge water; target ~5.1 pH |
| Gladfield Ale Malt | 4.6 kg | 64.9% |
| Gladfield Aurora Malt | 1.2 kg | 16.9% |
| Gladfield Light Crystal Malt | 0.55 kg | 7.8% |
| Gladfield Medium Crystal Malt | 0.44 kg | 6.2% |
| Gladfield Dark Crystal Malt | 0.24 kg | 3.4% |
| Gladfield Shepherds Delight Malt | 0.06 kg | 0.8% |
| Pacific Jade | 25 g |
| Mosaic | 70 g |