---
product_id: 66916132
title: "AD332B Fermaid O (120 g), 4.2 Ounce (Pack of 1)"
brand: "cellarscience"
price: "221.73 DT"
currency: TND
in_stock: true
category: "Cellar Science"
url: https://www.desertcart.tn/products/66916132-ad332b-fermaid-o-120-g-4-2-ounce-pack-1
store_origin: TN
region: Tunisia
---

# Certified organic nutrients Reduces heat spikes in fermentation Precise 4.2 oz dosing AD332B Fermaid O (120 g), 4.2 Ounce (Pack of 1)

**Brand:** cellarscience
**Price:** 221.73 DT
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your brew game with organic precision!

## Quick Answers

- **What is this?** AD332B Fermaid O (120 g), 4.2 Ounce (Pack of 1) by cellarscience
- **How much does it cost?** 221.73 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/66916132-ad332b-fermaid-o-120-g-4-2-ounce-pack-1)

## Best For

- cellarscience enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Quality:** Made in the USA with a 4.8-star rating from 345 brewers worldwide.
- • **Easy Integration:** Rehydrate in distilled water and add at 1/3 sugar depletion for seamless use.
- • **Precision Dosing:** Use exactly 1.5g per gallon for consistent, repeatable results every batch.
- • **Heat Spike Control:** Minimizes fermentation temperature surges to protect delicate yeast strains.
- • **Optimize Fermentation Health:** Organic nitrogen sources promote robust yeast vitality for superior flavor profiles.

## Overview

AD332B Fermaid O is a 4.2-ounce certified organic yeast nutrient powder designed to enhance fermentation by providing essential nitrogen and nutrients. It reduces heat spikes, promoting healthier yeast and better flavor development. Ideal for brewers seeking consistent, high-quality results, it is made in the USA and highly rated by the brewing community.

## Description

Contains organic sources of nitrogen, not damp, along with nutrients for a healthy fermentation with less heat spikes. Better yeast health equals better flavors. Use 1.5G per gallon. Rehydrate in distilled water and add at 1/3 sugar depletion.

## Features

- Package Dimensions: 5.69 L x 0.81 H x 5.44 W (inches)
- Package Weight : 0.25 pounds
- Country of Origin : United States
- Part number: AD332B

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074D9HQJD |
| Best Sellers Rank | #262,789 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #791 in Beer Brewing Ingredients |
| Brand Name | CellarScience |
| Coin Variety 1 | Yeast |
| Customer Reviews | 4.8 4.8 out of 5 stars (345) |
| Global Trade Identification Number | 00843200100138 |
| Item Form | Powder |
| Item Package Quantity | 1 |
| Item Package Weight | 0.13 Kilograms |
| Item Weight | 0.25 Pounds |
| Manufacturer | CellarScience |
| Model Number | AD332B |
| Number of Items | 1 |
| Part Number | AD332B |
| Size | 4.2 Ounce (Pack of 1) |
| Specialty | Certified Organic |
| UPC | 843200100138 |
| Unit Count | 4.2 Ounce |

## Product Details

- **Brand:** CellarScience
- **Item Form:** Powder
- **Item Weight:** 0.25 Pounds
- **Number of Items:** 1
- **Unit Count:** 4.2 Ounce

## Images

![AD332B Fermaid O (120 g), 4.2 Ounce (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/514eBYMLRhL.jpg)

## Questions & Answers

**Q: Is there an expiration date?  Is it good for more than 2018?  And does it require refrigeration, or just cool dark?  Thx**
A: Generally, we would recommend using the product within 12 months after opening. Refrigeration would be best, but is not required for storage.

**Q: What is the difference between A & B?**
A: AD332A has 12 grams of product while AD332B has 120 grams.

**Q: Do you add an additional 1.5 grams at 1/3 depletion? Or are you splitting the 1.5 grams? Also do you add it immediately?**
A: There are two schools of thought on this:
1. add at 24 hrs/48 hrs/72 hrs.  Less specific than:
2. add at yeast pitch/25% depletion/33.3% depletion.
YMMV

**Q: Fermaid o is manufactured by lallemand, but this listing shows the manufacturer as "cellularscience". who is cellularscience? is this genuine?**
A: I believe that Lallemand's smallest package size is 2.5kg. Cellularscience repackages the several products into smaller retail size packages.

## Frequently Bought Together

- CellarScience - AD332B Fermaid O (120 g), 4.2 Ounce (Pack of 1)
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**Shop now:** [https://www.desertcart.tn/products/66916132-ad332b-fermaid-o-120-g-4-2-ounce-pack-1](https://www.desertcart.tn/products/66916132-ad332b-fermaid-o-120-g-4-2-ounce-pack-1)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-22*