Tweaked from candisyrup recipe (OG1064, FG1008, SRM29, IBU24, VOL5GAL/19L). 90 minute boil, subbed styrian goldings with fuggles. Chill to 18C. Oxygenated 20 mins with air stone.
Mash water @4L/kg so not counting candisyrup (added just before flame-out) used 20L. Also sparged with 10L @approx 75C so total water used 30L and ended up 18L in fermentor (around 1 L of trub left when racking. OG reading @35C was 1076 (so with temp adjustment +0.005 closer to 1081). Therefore seems efficiency @80%. FG is 1016 at 21C so closer 1017 equals about 8.5%
Ramped up primary slowly to 26C over 9 days as bubbling started to slow (optimal lower & upper limits of wyeastlab3787 trappist-style high-gravity is 18-26C). (Optional didnt do is rack to secondary. At FG crash to 10C for 5 weeks to brighten). Bottle prime with Simplicity Candi Syrup at 32g/gallon. I used regular table sugar at 6-8g to get 3-4vol CO2 as per westmalle guidelines. Used 125g for the 17.5L. Hold bottles at 24C for 2 weeks for initial carbonation. At 1 week there was little carbonation so gave shake and up to 25C. Plan cellar 6 months