21B Specialty IPA: Red IPA
West Coast RIPA II
ABV6.2% OG1.059 FG1.013 IBU100Grain bill
| Gladfield American Ale Malt | 4.2 kg | 62.2% |
| Gladfield Vienna Malt | 1.3 kg | 19.3% |
| Gladfield Shepherds Delight Malt | 0.4 kg | 5.9% |
| Gladfield Aurora Malt | 0.3 kg | 4.4% |
| Gladfield Redback Malt | 0.3 kg | 4.4% |
| Gladfield Rye Malt | 0.2 kg | 3% |
| Gladfield Eclipse Wheat Malt | 0.05 kg | 0.7% |
Adjuncts
| Aromazyme | manufacturer dose |
| Yeast nutrient | 2 g @ 10 min |
| Whirlfloc | 1 g @ 10 min |
Hop schedule
| Hop | 60 min | 30 min | 10 min | WP | DH#1 | DH#2 |
|---|---|---|---|---|---|---|
| Mosaic | 15g | 20g | 25g | 20g | 80g | · |
| Riwaka | · | 25g | 25g | 20g | · | 100g |
Yeast
| Froth Tech Vape FT02 | 1 packet |
Water additions
| Calcium Chloride | 2 g |
| Magnesium Sulfate | 4 g |
| Calcium Sulfate | 8 g |
Tasting notes
2024-06-22
Fermentation profile
Gravity
Temperature
About This Beer
Second West Coast RIPA iteration, swapping BRY-97 for Froth Tech Vape FT02, a NZ dry yeast with reported thiol activity, and adding Aromazyme to enhance biotransformation.
The seven-malt RIPA grist stays: American Ale for the fermentable base, Vienna, then Shepherds Delight, Aurora, Redback, rye and a touch of Eclipse Wheat for the layered red malt character the style wants.
The split dry hop
Two stages rather than one. Mosaic goes in at day 4 with the Aromazyme dose, so its earthy tropical integrates during active fermentation. Riwaka follows from day 5 and stays much longer, adding citrus freshness later in the process.
Fermentation
FT02 pitched at 20°C under 1 to 2 psi. Vigorous enough to need foam management at days 3 to 4. Raised to 22°C around day 7 with the spunding valve closed for CO2 capture.
Packaging and tasting
Mixed packaging on day 20, counter-pressure bottling plus keg, carbonated to 2.35 volumes.
Tasted six days before packaging: good colour, strong West Coast profile, solid aroma. The counter-pressure bottling performed well for the bottle-share portion.