# Glossary ## Brewing Terms | Term | Definition | | -------------------------- | ---------------------------------------------------------------------------------------------- | | **ABV** | Alcohol by volume; percentage of alcohol in finished beer. | | **Adjunct** | A non-malt fermentable ingredient, such as sugar, corn, rice, or honey. | | **Ale** | Beer typically fermented at warmer temperatures with ale yeast. | | **Alpha Acid** | Hop compounds that isomerize during the boil and contribute bitterness. | | **Attenuation** | Percentage of fermentable sugars consumed by yeast during fermentation. | | **Bottle Conditioning** | Natural carbonation in the package by fermenting priming sugar after bottling. | | **Cold Crash** | Rapidly cooling beer near the end of fermentation to help yeast and solids settle. | | **Conditioning** | Maturation stage after primary fermentation where beer stabilizes and clears. | | **Diacetyl** | Buttery or butterscotch flavor compound that can remain if fermentation cleanup is incomplete. | | **Dry Hopping** | Adding hops during or after fermentation to boost aroma with minimal added bitterness. | | **EBC** | European Brewery Convention color scale used to describe beer color (mainly in Europe). | | **Esters** | Fruity aroma and flavor compounds naturally produced by yeast during fermentation. | | **Fermentable** | Any ingredient that contributes sugars for yeast to ferment. | | **Fermentation** | Process where yeast converts sugars into alcohol and CO2. | | **FG** | Final Gravity; density of beer after fermentation is complete. | | **Flocculation** | Tendency of yeast to clump together and settle out of suspension. | | **Gravity** | Measure of wort or beer density relative to water. | | **Grist** | Full mix of crushed malt and grains prepared for mashing. | | **Head Retention** | How well foam persists on a poured beer over time. | | **Hops** | Flower cones used to add bitterness, aroma, and flavor to beer. | | **IBU** | International Bitterness Units; measurement of estimated bitterness from hop compounds. | | **Krausen** | Foamy head formed on fermenting wort during peak fermentation activity. | | **Lager** | Beer typically fermented at cooler temperatures with lager yeast. | | **Lauter Tun** | Vessel used to separate wort from spent grain during lautering. | | **Lautering** | Separating sweet wort from the grain bed after mashing. | | **Malt Extract** | Concentrated malt sugars sold as liquid syrup or dry powder. | | **Mash** | Mixing crushed grain with hot water so enzymes convert starches into fermentable sugars. | | **Mash Tun** | Vessel used for mashing grain with hot water. | | **Mash-in** | Step where crushed grain is first combined with brewing water to start the mash. | | **OG** | Original Gravity; density of wort before fermentation starts. | | **Oxidation** | Staling caused by oxygen exposure, often producing dull, papery, or cardboard-like flavors. | | **pH** | Measure of acidity or alkalinity that affects mash performance, flavor, and stability. | | **Pitching** | Adding yeast to cooled wort to start fermentation. | | **Plato** | Scale (°P) that expresses dissolved extract concentration in wort or beer. | | **Primary Fermentation** | Main active fermentation phase where most sugar conversion and alcohol production happens. | | **Priming Sugar** | Sugar added before packaging to create natural carbonation. | | **Secondary Fermentation** | Later-stage maturation phase; often referred to as conditioning in modern workflows. | | **Session Beer** | Lower-ABV beer intended to remain flavorful and drinkable over longer sessions. | | **SG** | Specific Gravity; base density measurement behind OG, FG, and attenuation. | | **Sparge** | Rinsing grains after mashing to extract residual sugars. | | **Sparging** | Rinsing the grain bed with hot water to recover remaining sugars after first runnings. | | **SRM** | Standard Reference Method color scale used to describe beer color. | | **Trub** | Sediment of proteins, hop matter, and solids left after boiling and cooling wort. | | **Vorlauf** | Recirculating early runnings until wort clears before collecting full runoff. | | **Whirlpool** | Post-boil circular flow used to collect solids in the center and support hop utilization. | | **Wort** | Unfermented sweet liquid extracted from mash before fermentation. | | **Wort Boil** | Boiling wort to sanitize it, drive off volatiles, and extract bitterness from hops. | | **Yeast** | Microorganism that converts sugars into alcohol, CO2, and fermentation flavors. | ## Brewfather App Terms | Term | Definition | | ------------------------ | --------------------------------------------------------------------------------------------------------- | | **Batch** | A brewed instance of a recipe that tracks real brew-day and fermentation data. | | **Device** | A connected hardware source (for example hydrometers or controllers) that logs data to Brewfather. | | **Equipment Profile** | Reusable setup defining brewhouse volumes, losses, and efficiency assumptions. | | **Fermentation Profile** | Reusable temperature and timing schedule for fermentation stages. | | **Folder** | Container used to organize recipes, batches, and other library items. | | **Integration** | Configured connection between Brewfather and an external service or hardware platform. | | **Inventory** | On-hand ingredient stock tracking used for planning and brewing. | | **Mash Profile** | Reusable set of mash steps with target temperatures and times. | | **Notifications** | App alerts and reminders for brew process events, fermentation milestones, devices, and account activity. | | **Premium** | Paid feature tier that unlocks advanced capabilities and higher limits. | | **Profile** | Reusable configuration object, such as water, mash, fermentation, or equipment settings. | | **Recipe** | Core formulation containing ingredients, process steps, and brewing targets. | | **Subscription** | Account plan status that controls access to premium features. | | **Tools** | Built-in calculators and converters used during recipe design and brew day decisions. | | **Water Profile** | Reusable mineral composition target for source, target, or dilution water in Brewfather. | ## Related docs * [Fundamentals](/brewing-knowledge/fundamentals.md) * [References](/brewing-knowledge/references.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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