# Fermentables Brewfather maintains a large database of different fermentables and this is growing all the time as new malts, etc., are added to the database. To add a Fermentable from the database to your inventory click Add button on the right of the Fermentables title

Fermentables section of the Inventory

This will bring up the Fermentables selection pop-up window

Search for your Fermentable

Here you can type the name or part of the name of the fermentable you are looking for. If nothing comes up for your search, you can add a new fermentable by clicking the Add button at the bottom right. This will take you to the screen to [add a new fermentable](/inventory/fermentables/adding-new-malts.md). If the malt you want to add comes up in the search you just click on it to be taken to the screen to add the details. This screen will already have certain details filled in by default such as Name, Category, Supplier, Origin, Potential and Yield. You can just add a quantity by clicking in the inventory amount field and typing the amount you have

Malt inventory

It is worth then adding a cost if you want to get an idea of how much each brew costs. You can also click the Plus button to the right, which will prompt you for the amount you want to change your inventory to and the cost paid for it.

Adjust inventory

This same box can be used to adjust your inventory if you have to dispose of some of your ingredients. Finally just click the Save button to save your changes to the inventory. #### Adjusting Inventory If you wish to adjust stock levels for ingredients already in your inventory, find the ingredient and click on it. You can now adjust the amount by either following the method described above or clicking in the Inventory Amount field and then just editing the value in there before clicking Save ## Fermentable Fields When adding or editing a fermentable, the following fields are available in the inventory editor: * **Type** — Grain, Liquid Extract, Dry Extract, Sugar, Adjunct, or Other * **Color** — Color value displayed in SRM or EBC by default. You can switch to Lovibond or show both Lovibond and SRM/EBC simultaneously via **Settings > Units > Grain Color**. The available options are Default (SRM/EBC), Lovibond, Lovibond + Color, and Legacy. * **Potential / Yield %** — Extract potential (in PPG, i.e. specific gravity points per pound per gallon) and yield percentage. These two fields are linked: editing one automatically recalculates the other. These values are used in recipe calculations to estimate original gravity. * **Moisture %** — Moisture content of the grain * **Diastatic Power** — Enzymatic power of the malt * **Protein %** — Protein content percentage * **Max In Batch %** — Maximum recommended percentage in a recipe * **Attenuation** — Attenuation contribution * **Exclude from Total** — Checkbox to exclude this fermentable from the total grain bill percentage * **Not Fermentable** — Checkbox to mark the ingredient as non-fermentable * **Fermentability %** — Individual fermentability contribution of this grain (visible when advanced attenuation mode is enabled in Settings) * **Total IBU per unit** — IBU contribution per weight unit, available for Liquid Extract, Adjunct, and Other types only * **Grain Category** — Category classification for the grain * **Use** — When the fermentable is used (Mash, Boil, etc.) and **Time** for the duration * **Best Before Date** — Expiration date for the ingredient * **Manufacturing Date** — When the ingredient was produced * **Lot Number** — Batch tracking identifier * **Supplier** — The manufacturer or supplier name * **Origin** — Country or region of origin * **User Notes** — Personal notes about the ingredient * **Substitutes** — Suggested alternative fermentables * **Notes** — General notes from the database * **Used In** — Styles or recipes this fermentable is commonly used in * **Cost** — Price per unit for brew cost tracking * **Inventory Amount** — Current stock quantity The following grain-specific fields are available under the **Edit details** section for fermentables of type Grain: * **Coarse/Fine-Diff %** — Difference between coarse and fine grind extract * **Extract (Fine Grind Dry Basis) %** — FGDB extract percentage * **Calc Yield** — Button that calculates yield/potential from FGDB, Coarse/Fine-Diff, and moisture values * **Acid %** — Acid content of the grain * **Friability %** — Friability percentage * **Free Amino Nitrogen** — FAN content in mg/L * **Max Recommended Amount %** — Maximum recommended percentage of this grain in a recipe ## Related docs * [Inventory](/inventory.md) * [Recipes](/recipes.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. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.brewfather.app/inventory/fermentables.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.