{"schema":{"type":"ModernMazerRecipe","version":"1.0"},"canonicalUrl":"https://modernmazer.com/recipes/acerglyn","jsonUrl":"https://modernmazer.com/recipes/acerglyn.json","slug":"acerglyn","name":"Acerglyn (Maple Mead)","summary":"A traditional acerglyn — a mead made with maple syrup as a co-fermentable alongside honey. Maple syrup adds a distinctive woodsy sweetness and complexity. Targets 13% ABV with a semi-sweet finish. 5-gallon batch.","heroImage":null,"heroImageAlt":"A glass of amber acerglyn beside maple syrup, a honey jar, and maple leaves","author":"Modern Mazer","publishedDate":"2026-09-13","updatedDate":"2026-09-13","testingStatus":"development","evidenceStatus":"editorial","difficulty":"intermediate","style":"Acerglyn","tags":["mead","acerglyn","maple","specialty","semi-sweet","five-gallon"],"targetBatchVolume":5,"targetBatchVolumeUnit":"gallons","grossBatchVolume":5.5,"grossBatchVolumeUnit":"gallons","expectedProductionLoss":0.09,"targetABV":13,"originalGravity":1.098,"finalGravity":1.005,"sweetnessLevel":"semi-sweet","carbonationLevel":"still","ingredients":[{"id":"honey","name":"Wildflower honey","quantity":10,"unit":"lbs","notes":null,"optional":false,"scalingBehavior":"linear"},{"id":"maple-syrup","name":"Grade B (dark) maple syrup","quantity":3,"unit":"lbs","notes":"Grade B has stronger maple flavor. Add with honey.","optional":false,"scalingBehavior":"linear"},{"id":"water","name":"Filtered water","quantity":4.5,"unit":"gallons","notes":null,"optional":false,"scalingBehavior":"linear"},{"id":"fermaid-o","name":"Fermaid-O","quantity":10,"unit":"g","notes":null,"optional":false,"scalingBehavior":"manual"},{"id":"fermaid-k","name":"Fermaid-K","quantity":5,"unit":"g","notes":null,"optional":false,"scalingBehavior":"manual"}],"yeast":{"name":"Lalvin 71B","brand":"Lalvin","quantity":1,"unit":"packets","notes":"Preserves delicate maple character."},"nutrientSchedule":[{"timing":"Day 0 (pitch)","nutrient":"Fermaid-O","quantity":2.5,"unit":"g","notes":null,"scalingBehavior":"manual"},{"timing":"24 hours","nutrient":"Fermaid-O","quantity":2.5,"unit":"g","notes":null,"scalingBehavior":"manual"},{"timing":"48 hours","nutrient":"Fermaid-O","quantity":2.5,"unit":"g","notes":null,"scalingBehavior":"manual"},{"timing":"1/3 sugar break","nutrient":"Fermaid-O","quantity":2.5,"unit":"g","notes":null,"scalingBehavior":"manual"},{"timing":"Day 0 (pitch)","nutrient":"Fermaid-K","quantity":5,"unit":"g","notes":null,"scalingBehavior":"manual"}],"equipment":["6-gallon fermentation vessel","Airlock and stopper","Hydrometer","Thermometer","Sanitizer","Auto-siphon and tubing","Bottles or keg"],"process":[{"step":1,"title":"Sanitize all equipment","description":"Prepare no-rinse sanitizer. Sanitize all vessels and tools.","note":null},{"step":2,"title":"Dissolve honey and maple syrup","description":"Warm 1 gallon of water to 100°F. Dissolve honey and maple syrup. Cool before adding.","note":null},{"step":3,"title":"Build must","description":"Add honey-maple solution to fermenter. Top up with filtered water to 5.5 gallons.","note":null},{"step":4,"title":"Take OG reading","description":"Record original gravity. Target approximately 1.098.","note":null},{"step":5,"title":"Pitch yeast and nutrients","description":"Pitch Lalvin 71B. Add Day 0 nutrients. Ferment at 65–70°F.","note":null},{"step":6,"title":"Staggered nutrient additions","description":"Follow TOSNA schedule. Degas before each addition.","note":null},{"step":7,"title":"Monitor fermentation","description":"Check gravity every few days. Fermentation typically completes in 4–6 weeks.","note":null},{"step":8,"title":"Rack to secondary","description":"Rack off lees.","note":null},{"step":9,"title":"Condition and clarify","description":"Condition for 4–8 months.","note":null},{"step":10,"title":"Package","description":"Bottle or keg.","note":null}],"fermentationTemperature":"65–70°F (18–21°C)","fermentationTimeline":"4–6 weeks","conditioningTimeline":"4–8 months","packagingInstructions":"Ensure fermentation is fully complete before packaging.","safetyNotes":["Never bottle a mead that has not fully finished fermenting.","Sanitize all equipment that contacts the must or finished mead."],"scalingNotes":"Honey, maple syrup, and water scale linearly. Nutrient additions do NOT scale linearly.","version":"1.0.0","changeHistory":[{"version":"1.0.0","date":"2026-09-13","summary":"Initial record. Phase 4C Batch 10.","changedBy":"Modern Mazer"}],"relatedRecipes":["traditional-mead-v1","maple-bochet"],"relatedTutorials":[],"references":[{"title":"TOSNA 3.0 Nutrient Calculator","url":"https://www.meadmakr.com/tosna-calculator/","author":null,"year":null,"notes":null}]}