---
product_id: 294672119
title: "Grape and Granary Brewtan B - 1 oz Bag"
brand: "grape and granary"
price: "B/.1"
currency: PAB
in_stock: false
reviews_count: 1
url: https://www.desertcart.com.pa/products/294672119-grape-and-granary-brewtan-b-1-oz-bag
store_origin: PA
region: Panama
---

# Extends beer shelf life Enhances beer flavor profile Stabilizes colloidal proteins Grape and Granary Brewtan B - 1 oz Bag

**Brand:** grape and granary
**Price:** B/.1
**Availability:** ❌ Out of Stock

## Summary

> 🍻 Brew smarter, sip longer — elevate your craft with Brewtan B!

## Quick Answers

- **What is this?** Grape and Granary Brewtan B - 1 oz Bag by grape and granary
- **How much does it cost?** B/.1 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/294672119-grape-and-granary-brewtan-b-1-oz-bag)

## Best For

- grape and granary enthusiasts

## Why This Product

- Trusted grape and granary brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flavor Amplifier:** Naturally enhances beer’s flavor complexity without artificial additives
- • **Prolong Your Pour:** Boosts beer shelf life by inhibiting oxidation for fresher taste longer
- • **Sustainably Sourced:** 100% natural tannic acid from renewable plant materials for eco-conscious brewers
- • **Crystal Clear Stability:** Improves colloidal stability to reduce haze and maintain clarity
- • **Precision Brewing Control:** Easily dosed in mash or boil for tailored brewing impact

## Overview

Brewtan B is a 100% natural, high molecular weight tannic acid powder designed for brewers to improve beer shelf life, flavor, and colloidal stability. It works by binding with wort proteins to prevent oxidation and haze, ensuring fresher, clearer beer. Ideal for addition during mash or boil stages, Brewtan B is sustainably sourced and easy to dose, making it a must-have for professional and home brewers aiming for premium quality and longevity.

## Description

Brewtan B (formerly called Tanal B) is a 100% natural, high molecular weight tannic acid extracted from renewable plant materials specifically for the brewing industry. Incorporating Brewtan B into your process will improve the shelf life and enhance the flavor and colloidal stability of your beer. The gallotannins in Brewtan B react with wort proteins through adsorption and precipitation - the Brewtan B/protein complex is left in the spent grains when Brewtan B is added to the mash, or removed in the whirlpool when it is added to the boiler. It is highly effective at coagulating and flocculating proline and –thiol –containing proteins, but does not interact with foam-positive proteins. This in turn inhibits downstream lipid and protein oxidation, improving flavor stability and shelf life. Dosage rate: In the mash: 1.5 grams per 6 gallons of mash liquor. In the boiler: 1 gram per 6 gallons wort (5 g/1.17 hL). 1/2 tsp of Brewtan = 1.3 grams Usage: Dissolve powder in warm water; add solution to mash, boil, or both. In the mash: Add solution to mash water prior to dough-in. In the boiler: Add solution 0-5 minutes prior to end of boil. Stability: 1 year, stored in airtight container in cool environment. Product may be retested after 1 year, and may continue to be used if it is still of satisfactory quality.

## Features

- 1oz bag of 'Brewtan B' Improves shelf life of your beer Enhances the flavor and colloidal stability of beer

## Product Details

- **Brand:** Grape and Granary
- **Flavor:** Grape
- **Primary Supplement Type:** B-Complex
- **Unit Count:** 1.0 Ounce
- **Item Form:** Powder
- **Package Information:** Bag
- **Number of Items:** 1
- **Dosage Form:** Powder
- **Material Feature:** Natural
- **UPC:** 651208968069

## Images

![Grape and Granary Brewtan B - 1 oz Bag - Image 1](https://m.media-amazon.com/images/I/61prJFF6btL.jpg)
![Grape and Granary Brewtan B - 1 oz Bag - Image 2](https://m.media-amazon.com/images/I/41pFmX1x8LL.jpg)
![Grape and Granary Brewtan B - 1 oz Bag - Image 3](https://m.media-amazon.com/images/I/61+Q4QVP2xL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Love this stuff
  

*by R***. on Reviewed in the United States on January 16, 2024*

I started using this a few years ago in all my brews.  I can't remember if it was a Brewing Network podcast or Master Brewers Podcast where I first heard about it, but it seemed like cheap insurance to help avoid premature staling.  It's hard to say without doing a blind triangle test, but I do feel like it's lived up to its claim of improving shelf life and reducing chill haze.  I've had several "older" light-colored lagers medal in competitions using this product.  Fresh beer is always better, but it does seem like this can help extend the shelf life.  I use it in the mash and dose with ~1 gram for a 5 gallon batch.

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**Shop now:** [https://www.desertcart.com.pa/products/294672119-grape-and-granary-brewtan-b-1-oz-bag](https://www.desertcart.com.pa/products/294672119-grape-and-granary-brewtan-b-1-oz-bag)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-14*