28B Mixed-Fermentation Sour Beer
| Calcium Chloride | 3 g |
| Lactic Acid | Mash water to pH 5.3; sparge water to pH 5.5 |
| Weyermann Barke Pilsner Malt | 3.65 kg | 66.4% |
| Weyermann Wheat Malt Pale | 1.35 kg | 24.5% |
| Harraways Rolled Oats | 0.5 kg | 9.1% |
| Lactic Acid (80%) · pre pitch | 2.5 mL |