Southern Silk IPA
Today was brewday for what I'm calling Southern Silk IPA. I'm going for all tropical fruit, citrus and melon flavours in this one.
Date: 4 Aug 2019 Boil Size: 25.72 L Post Boil Volume: 23.12 L Batch Size (fermenter): 22.00 L Bottling Volume: 20.00 L Estimated OG: 1.042 SG Estimated Color: 9.2 EBC Estimated IBU: 40.9 IBUs Brewhouse Efficiency: 75.00 % Est Mash Efficiency: 75.7 % Boil Time: 60 Minutes Water profile: Ca:57, Mg:10, Na:10, SO4:105, Cl:46 Adjusted mash pH: 5.30 Ingredients: ------------ Amt Name Type %/IBU Volume 27.26 L Tesco Ashbeck Water - - 3.10 kg IREKS Pale Ale Malt (6.0 EBC) Grain 80.0 % 2.02 L 0.39 kg IREKS Munich Malt (20.0 EBC) Grain 10.0 % 0.25 L 0.39 kg Wheat, Torrified (3.3 EBC) Grain 10.0 % 0.25 L 10.00 g Cashmere [7.00 %] - Boil 15.0 min Hop 4.5 IBUs - 10.00 g Galaxy [15.60 %] - Boil 15.0 min Hop 10.0 IBUs - 10.00 g Motueka [7.30 %] - Boil 15.0 min Hop 4.7 IBUs - 12.00 g Cashmere [7.00 %] - Boil 10.0 min Hop 3.9 IBUs - 12.00 g Galaxy [15.60 %] - Boil 10.0 min Hop 8.8 IBUs - 12.00 g Motueka [7.30 %] - Boil 10.0 min Hop 4.1 IBUs - 1.00 Items Whirlfloc Tablet (Boil 7.0 mins) Fining - - 15.00 g Cashmere [7.00 %] - Boil 2.0 min Hop 1.1 IBUs - 15.00 g Galaxy [15.60 %] - Boil 2.0 min Hop 2.6 IBUs - 15.00 g Motueka [7.30 %] - Boil 2.0 min Hop 1.2 IBUs - 1.0 pkg DIPA Ale (Omega #OYL-052) Yeast - - Mash Schedule: Single Infusion, Medium Body, Batch Sparge Name Description Step Temperat Step Time Mash In Add 22.26 L of water at 69.1 C 66.0 C 60 min Sparge: Dunk sparge 5L of 75.6 C water
Brew day started at 6:30 this morning. It takes me about 6 hours and I like to be done and dusted by midday so I've got the afternoon free.
Mashed in at 67C. Forgot to add the lactic acid to the water beforehand but remembered as soon as the grain went in so I quickly added it and gave the mash a good stir.
Did the iodine test after an hour. Looks good to go.
A dunk sparge for 10 minutes with 5 litres of 75C water follows the mash to rinse as much sugar out of the grain as I can get. The bag gets a really good squeeze after the sparge is done. Mash efficiency turned out to be 85%.
Pre-boil gravity of 1.040 at 20C is exactly what I was expecting.
2.4kW takes a while to get to the boil, stirring all the time. When the boil starts then all the crud comes to the top. There are no hops in the boil until 15 minutes in this recipe.
I strained off all the break material, crud, whatever it is.
Now it's virtually all gone it looks much nicer. I used the half hour or so of free time during the boil to set up the chiller and rinse out the grain bag.
Here's the hops for this recipe. Oh the smell of Galaxy! Does anything match it? It all gets a bit busy in the last 15 minutes with 3 additions of each of the 3 hops, plus the whirlfloc tablet to remember as well.
I chilled down to 27C with the immersion chiller. The ground water temperature here is still pretty warm and I wasn't making much progress so I called it a day at 27C and collected 22 litres into the sanitised fermenter.
Adjusted OG seems to be 1.043 so pretty much as planned. Colour looks good and the wort tastes nice and smooth.
So it was a smooth brew-day in the end. I made what I expected to make which is always good. Now the fermenter is sitting in the brew-fridge chilling down to 20C when I'll pitch the OYL-052 starter.
I kegged my Southern Silk IPA today after a few hours shy of two weeks in the keg. FG was 1.006 for a final ABV of 4.9% and I managed to get about a pint short of a full corny which will do but next time I'll brew a litre extra to make sure I get the full keg's worth out of it. The remaining headspace was purged with CO2 at 5x15psi and is now sitting at 15psi to carbonate.
The sample jar tasted amazing - all the tropical fruit flavours and aromas I was hoping for from the Galaxy/Motueka/Cashmere hops are there. High hopes for this one.
Now about 3 weeks since it was kegged and it's as clear as a bell and tasting wonderful. The Vermont yeast works so well with the new world hops and really gives a silky, full mouthfeel. I knew Galaxy and Motueka were a great combo and now I'm totally sold on Cashmere as well.