---
product_id: 58315161
title: "Potassium Metabisulfite - SO2 (4 oz)"
brand: "cellarscience"
price: "€ 20.04"
currency: EUR
in_stock: true
category: "Cellar Science"
url: https://www.desertcart.at/products/58315161-potassium-metabisulfite-so2-4-oz
store_origin: AT
region: Austria
---

# Optimized for 5 gallons of must or wine 4 oz pure potassium meta-bisulfite powder Precise 50 ppm SO2 dosing Potassium Metabisulfite - SO2 (4 oz)

**Brand:** cellarscience
**Price:** € 20.04
**Availability:** ✅ In Stock

## Summary

> 🍇 Elevate your vintage—preserve perfection with every pour!

## Quick Answers

- **What is this?** Potassium Metabisulfite - SO2 (4 oz) by cellarscience
- **How much does it cost?** € 20.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/58315161-potassium-metabisulfite-so2-4-oz)

## 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

- • **Easy Integration:** Dissolves quickly in wine for seamless blending and protection
- • **Tailored Protection:** Adjust dosage based on wine pH for customized spoilage prevention
- • **Trusted by Winemakers:** Top-rated with 4.6 stars and proven effectiveness in home winemaking
- • **Potassium-Powered Purity:** Potassium-based formula ensures superior oxidation and bacteria defense
- • **Precision Preservation Power:** Add exactly 50 ppm SO2 per 5 gallons for flawless spoilage control

## Overview

Potassium Metabisulfite (4 oz) is a potent SO2 powder designed to protect must and wine from spoilage bacteria, indigenous yeast, and oxidation. With a precise dosing of 50 ppm per 5 gallons, it dissolves easily for effective preservation tailored to your wine’s pH, making it a trusted choice for home winemakers seeking professional-grade results.

## Description

Potassium Meta-bisulfite, or SO2 as it is often referred by, is used to help control spoilage bacteria and indigenous yeast as well as oxidation. The most common form of Meta-bisulfite is as a powder which is fixed with potassium or sodium. This versions is fixed with Potassium. 1/4 tsp adds 50 ppm to 5 gallons of must or wine. The exact amount needed to effectively protect the wine is determined by the wine’s ph. Dissolve in a small amount of wine and stir gently into your vessel.

## Features

- Potassium meta-bisulfite
- 1/4 teasp adds 5 ppm to 5 gallons of must or wine
- 4 oz (113 g)
- Dissolve in a small amount of wine and stir gently into your vessel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074D988ND |
| Best Sellers Rank | #73,761 in Health & Household ( See Top 100 in Health & Household ) #136 in Potassium Mineral Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (131) |
| Date First Available | July 29, 2017 |
| Item Weight | 4 ounces |
| Item model number | AD495 |
| Manufacturer | CellarScience |
| Package Dimensions | 9.25 x 5.79 x 0.43 inches |

## Product Details

- **Brand:** CellarScience
- **Flavor:** Unflavored
- **Item Form:** Powder
- **Primary Supplement Type:** Potassium
- **Unit Count:** 4 Ounce

## Images

![Potassium Metabisulfite - SO2 (4 oz) - Image 1](https://m.media-amazon.com/images/I/71ch4HrNqjL.jpg)

## Questions & Answers

**Q: is there an expiration date?**
A: We go through a lot of this so we are constantly rotating our inventory. After purchasing, the shelf life should be at least 5-6 months before it will start to lose potency.

**Q: Will this remove the yeast taste? I've had bre**
A: Unanswerable.  The cause of the yeasty taste and when caused in the brewing process would need to be known.  But, properly sterilized equipment should prevent previous batch contamination.

## Frequently Bought Together

- Potassium Metabisulfite - SO2 (4 oz)
- North Mountain Supply Food Grade Potassium Sorbate Stabilizer - 2 Ounce Jar
- Lalvin EC-1118 Wine Yeast (10 Pack) - Champagne Yeast - Make Wine Cider Mead Kombucha At Home - 5 g Sachets - Saccharomyces cerevisiae - Sold by CAPYBARA Distributors Inc.

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-10-17*