--- title: Fixing coffee flavor problems description: In this article, you will get to understand the flavor and qualities of under-extraction and over-extraction, how grind size can be used to improve your brew, and applying the concept of ratios to help you understand how you can improve the quality of the extraction. --- [Skip to content](https://help.ratiocoffee.com/fixing-coffee-flavor-problems#main-content) English Show submenu for translations ![b8418dc3-0886-4e57-a609-b76b4a600d63.png\]](https://help.ratiocoffee.com/hs-fs/hubfs/b8418dc3-0886-4e57-a609-b76b4a600d63.png?height=42&name=b8418dc3-0886-4e57-a609-b76b4a600d63.png) - [Choosing the Right Ratio Machine](https://help.ratiocoffee.com/choosing-the-right-ratio-machine) - [Warranty Form](https://ratiocoffee.com/pages/warranty-request-form) - [Return Form](https://ratiocoffee.com/pages/return-request-form) Open main navigation Close main navigation - [Choosing the Right Ratio Machine](https://help.ratiocoffee.com/choosing-the-right-ratio-machine) - [Warranty Form](https://ratiocoffee.com/pages/warranty-request-form) - [Return Form](https://ratiocoffee.com/pages/return-request-form) - English Show submenu for translations - [Home](https://ratiocoffee.com/) [Home](https://ratiocoffee.com/) How can we help? - There are no suggestions because the search field is empty. 1. [Help Center](https://help.ratiocoffee.com/?hsLang=en) 2. [Coffee Guides & Education](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en) 3. [Dose](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#dose) # Fixing coffee flavor problems Is your brew tasting off, too strong, or too weak? We understand the importance of a perfect brew to wake you up in the moring. Ideally, to highlight the best qualities of the coffee you're brewing, the coffee will taste: - sweet - balanced - transparent - have a full mouthfeel Your taste buds are the most important tools to help move your brew's extraction in the right direction. In this article, you will get to understand the flavor and qualities of under-extraction and over-extraction, how [grind size](https://app-na2.hubspot.com/knowledge-article/5495530/editor/366796887778/content?redirectUrl=/knowledge/5495530/272004375248/articles/state/all) can be used to improve your brew, and applying the [concept of ratios](https://app-na2.hubspot.com/knowledge-article/5495530/editor/367593222866/content?redirectUrl=/knowledge/5495530/272004375248/articles/state/all) to help you understand how you can improve the quality of the extraction. #### Under-Extraction - Flavor/Presentation: weak, salty, sour, and/or having a quick finish. - To help resolve under-extraction: - Make the grind size finer, which will boost extraction. - You can decrease coffee dose, which will increase the extraction.   #### Over-Extraction - Flavor/Presentation: dry, harsh on the tongue, and/or hollow in flavor. - To help resolve over-extraction: - Make the grind size coarser, which will lessen extraction. - You can increase coffee dose, which will lessen the extraction. Lastly, to preserve your coffee's flavor and prevent funky flavors from developing, be sure you're descaling your Ratio monthly using [these instructions](https://app-na2.hubspot.com/knowledge-article/5495530/editor/272004375283/content?redirectUrl=%2Fknowledge%2F5495530%2F272004375248%2Farticles%2Fstate%2Fall)! - [Getting Started](https://help.ratiocoffee.com/getting-started?hsLang=en#main-content) - [Eight Series 2](https://help.ratiocoffee.com/getting-started?hsLang=en#eight-series-2) - [Six](https://help.ratiocoffee.com/getting-started?hsLang=en#six) - [Four](https://help.ratiocoffee.com/getting-started?hsLang=en#four) - [Eight Original](https://help.ratiocoffee.com/getting-started?hsLang=en#eight-original) - [Ratio Rewards](https://help.ratiocoffee.com/getting-started?hsLang=en#ratio-rewards) - [Coffee Guides & Education](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#main-content) - [Water](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#water) - [Grind](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#grind) - [Coffee](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#coffee) - [Grinders](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#grinders) - [Dose](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#dose) - [Maintenance](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#maintenance) - [Materials](https://help.ratiocoffee.com/coffee-guides-education-1?hsLang=en#materials) - [Maintenance](https://help.ratiocoffee.com/maintenance?hsLang=en#main-content) - [Cleaning](https://help.ratiocoffee.com/maintenance?hsLang=en#cleaning) - [Ratio Eight Series 2](https://help.ratiocoffee.com/maintenance?hsLang=en#ratio-eight-series-2) - [Ratio Eight Original](https://help.ratiocoffee.com/maintenance?hsLang=en#ratio-eight-original) - [Ratio Six](https://help.ratiocoffee.com/maintenance?hsLang=en#ratio-six) - [Ratio Four](https://help.ratiocoffee.com/maintenance?hsLang=en#ratio-four) - [Grinders](https://help.ratiocoffee.com/maintenance?hsLang=en#grinders) - [Warranty](https://help.ratiocoffee.com/warranty?hsLang=en) - [Returns](https://help.ratiocoffee.com/returns?hsLang=en) - [Troubleshooting](https://help.ratiocoffee.com/troubleshooting?hsLang=en#main-content) - [Eight Original](https://help.ratiocoffee.com/troubleshooting?hsLang=en#eight-original) - [Eight Series 2](https://help.ratiocoffee.com/troubleshooting?hsLang=en#eight-series-2) - [Ratio Six](https://help.ratiocoffee.com/troubleshooting?hsLang=en#ratio-six) - [Ratio Four](https://help.ratiocoffee.com/troubleshooting?hsLang=en#ratio-four) - [Accessories](https://help.ratiocoffee.com/troubleshooting?hsLang=en#accessories) - [Choosing the Right Ratio Machine](https://help.ratiocoffee.com/choosing-the-right-ratio-machine) - [Warranty Form](https://ratiocoffee.com/pages/warranty-request-form) - [Return Form](https://ratiocoffee.com/pages/return-request-form) [![Chill listening crop-3](https://help.ratiocoffee.com/hs-fs/hubfs/b8418dc3-0886-4e57-a609-b76b4a600d63.png?width=100&height=25&name=b8418dc3-0886-4e57-a609-b76b4a600d63.png "Chill listening crop-3")](https://ratiocoffee.com/) Help Center Copyright © 2026, Ratio