Troubleshooting unexpected ingredient quantities in batches

if the ingredient amounts on your brew sheet don’t match what you expected, it’s usually due to how breww handles batch scaling and multi turn logic when starting a batch breww doesn’t change your recipe — but how that recipe is interpreted depends on a few key settings this guide will help you work out why a quantity might appear incorrect and how to verify what's actually happening tl;dr – quick checks for ingredient quantity issues autoscaling enabled? breww multiplies all recipe quantities by the batch size ÷ recipe size multi turn batch with “repeat per turn” stage? the scaled amount is divided by the number of turns stage marked “once per batch”? the full scaled amount is applied once, regardless of number of turns autoscaling disabled, but batch size is larger or smaller than the recipe, and multi turn is on? ingredient quantities are not scaled — and repeat per turn stages will divide the original (unscaled) amount, which may result in lower or higher than expected values check stage settings in the recipe stage settings (repeat vs once per batch) affect how ingredients are distributed in multi turn batches 🔍 1 was autoscaling turned on? if autoscaling is enabled, breww calculates a scaling factor planned batch volume ÷ recipe batch volume all ingredient quantities are then multiplied by this factor scaling can increase or decrease amounts depending on the batch size, and doesn’t need to be a round number example recipe 1,000l with 100kg of malt planned batch 2,000l scaling factor 2 result 200kg of malt on the brew sheet ✅ check the brew sheet — if ingredient quantities are proportionally larger or smaller than in the recipe, autoscaling was likely applied 🔄 2 is the batch multi turn? and is the stage set to “repeat per turn”? if your batch is brewed over multiple turns and the stage is marked repeat per turn , breww divides the (already scaled) ingredient quantity by the number of turns and applies that amount per turn if the stage is set to once per batch , breww uses the full scaled quantity across all turns example recipe 100kg of malt planned batch 2,000l with 2 turns scaling factor 2 → total 200kg stage set to repeat per turn 200kg ÷ 2 turns = 100kg per turn stage set to once per batch 200kg added once during the batch ⚙️ 3 are the stage settings correct in the recipe? each stage in your recipe is marked either repeat per turn — for actions done in every brew cycle (e g mash additions) once per batch — for actions done once to the full volume (e g fermentation additions) this setting controls how ingredient quantities are applied in multi turn batches if the wrong option is selected, you may see ingredients added too many times — or not enough 🧠 reminder this is a setting on the stage itself, not on individual ingredients ⚠️ 4 was autoscaling off on a multi turn batch? this is a common gotcha if autoscaling is not enabled, but the batch has multiple turns , breww still applies repeat per turn logic — but uses the original recipe quantities without scaling them up this can cause ingredients to appear lower than expected per turn if the batch size is larger than the recipe example recipe batch size 1,000l with 100kg of malt planned batch 2,000l with 2 turns autoscaling off stage marked as repeat per turn result 100kg ÷ 2 = 50kg per turn , even though the batch is double the recipe ✅ to ensure ingredient amounts scale with batch size, autoscaling must be enabled ✅ 5 quick symptom checker symptom likely cause ingredient appears smaller than expected per turn autoscaled, and stage is marked repeat per turn ingredient appears larger than expected autoscaled, and stage is once per batch ingredient didn’t scale with batch size autoscaling was disabled ingredient applied on every turn, but shouldn’t be stage is incorrectly marked repeat per turn ingredient seems too low overall in a larger batch autoscaling was off, and stage is repeat per turn 🧾 6 still not sure? check these recipe batch size ingredient quantity in the recipe planned batch volume whether autoscaling was enabled when starting the batch whether the stage is marked repeat per turn or once per batch number of turns in the batch then do the maths multiply recipe quantity by the scaling factor (if autoscaling is on) divide by number of turns if the stage is repeat per turn compare to the brew sheet need help? if you're still not sure what's going on, let us know the recipe name the batch number what you expected vs what you're seeing we’re happy to take a look and confirm what’s happening you said "this is a common gotcha " this is a technical user guide, please correct your tone and revise this guidechatgpt said understood — here is the revised guide with a more professional tone, suitable for technical documentation informal language has been removed, and explanations are now more concise and precise troubleshooting unexpected ingredient quantities in breww batches if ingredient quantities on a brew sheet appear incorrect, this is usually due to how breww applies autoscaling and multi turn logic when a batch is started this guide explains how these settings affect quantities and how to verify whether the values shown are correct based on the recipe and batch configuration 1\ autoscaling when autoscaling is enabled at the point the batch is started, breww calculates a scaling factor all ingredient quantities are then multiplied by this factor the result may be higher or lower than the base recipe depending on whether the batch volume is greater or smaller than the recipe volume example recipe 1,000 l with 100 kg of an ingredient planned batch 2,000 l scaling factor 2 result 200 kg on the brew sheet if the ingredient quantities on the brew sheet are proportionally larger or smaller than the recipe, autoscaling was likely applied 2\ multi turn batches and “repeat per turn” stages if a batch is marked as multi turn , breww will apply the ingredient quantities in repeat per turn stages by dividing the scaled total by the number of turns for stages marked repeat per turn , the quantity is applied once per turn and therefore divided across the turns for stages marked once per batch , the full scaled amount is applied once, regardless of the number of turns example recipe 100 kg of malt planned batch 2,000 l with 2 turns scaling factor 2 → total 200 kg stage marked repeat per turn → 200 kg ÷ 2 turns = 100 kg per turn stage marked once per batch → 200 kg applied once during the batch 3\ stage settings in the recipe each recipe stage is marked as either repeat per turn for actions that occur during each brew cycle (e g mash additions) once per batch for actions that apply once to the entire batch volume (e g fermentation additions) this setting controls how ingredients are applied in multi turn batches incorrect configuration may result in ingredients being applied more or fewer times than intended note this setting applies to the entire stage, not individual ingredients 4\ multi turn batches without autoscaling if autoscaling is disabled and the batch has multiple turns, breww will not scale the ingredient quantities to match the larger volume however, it will still apply repeat per turn logic this means the original (unscaled) quantity from the recipe is divided across the turns, which can result in lower than expected values for each turn example recipe batch size 1,000 l with 100 kg of an ingredient planned batch 2,000 l with 2 turns autoscaling off stage marked repeat per turn result 100 kg ÷ 2 = 50 kg per turn if a batch is larger than the recipe and autoscaling is not enabled, ingredients may be under applied unless the recipe is manually adjusted to compensate 5\ common indicators and likely causes observation possible cause ingredient quantity is lower than expected per turn autoscaling enabled and stage is repeat per turn ingredient quantity appears higher than expected overall autoscaling enabled and stage is once per batch ingredient quantity has not changed from recipe autoscaling was not enabled ingredient applied to each turn when it should not be stage marked repeat per turn instead of once per batch ingredient appears too low overall in a larger batch autoscaling was off and stage is repeat per turn 6\ verifying ingredient behaviour to check whether the displayed quantities are correct, follow these steps check the recipe batch size and ingredient quantity confirm whether autoscaling was enabled check the planned batch volume and number of turns determine whether the stage is marked repeat per turn or once per batch then apply if autoscaling was enabled → recipe quantity × (planned ÷ recipe volume) if stage is repeat per turn → scaled amount ÷ number of turns if stage is once per batch → use full scaled amount compare the result to the brew sheet