How do I calculate the total bitterness of my recipe?

You can use the `calculate_total_recipe_bitterness` tool. Provide an array of your hop additions and the final wort gravity to get the total IBU and the BU:GU ratio.

Does dry hopping contribute to IBU?

No, dry hopping additions contribute zero IBU as they are added after fermentation and do not undergo the isomerization process.

Which utilization models are supported?

The server supports the Tinseth, Rager, and Daniels utilization models to accommodate different brewing styles and wort gravities.

Hops Bitterness Calculator MCP Connector for Claude

A+

Calculate precise IBU and BU:GU ratios for beer recipes.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides professional brewing tools to calculate International Bitterness Units (IBU) and the Bitterness-to-Gravity (BU:GU) ratio. It supports multiple utilization models including Tinseth, Rager, and Daniels. Use calculate_single_addition_ibu to find the bitterness contribution of specific hop additions, or calculate_total_recipe_bitterness to evaluate the balance of an entire recipe based on hop weight, alpha acid percentage, and wort gravity.

beeribubrewinghopsrecipe-calculation

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_xQ9eHDeHlMntZdyGn93HdTNdZCoFCM8mMfduU1J8/mcp

② Claude Code (terminal)

claude mcp add --transport http hops-bitterness-calculator https://edge.vinkius.com/vk_preview_xQ9eHDeHlMntZdyGn93HdTNdZCoFCM8mMfduU1J8/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "hops-bitterness-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_xQ9eHDeHlMntZdyGn93HdTNdZCoFCM8mMfduU1J8/mcp"
    }
  }
}

Get full access on Vinkius

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