---
product_id: 58315161
title: "Potassium Metabisulfite - SO2 (4 oz)"
brand: "cellarscience"
price: "$80901"
currency: COP
in_stock: true
reviews_count: 8
category: "Cellar Science"
url: https://www.desertcart.co/products/58315161-potassium-metabisulfite-so2-4-oz
store_origin: CO
region: Colombia
---

# Optimizes wine preservation & oxidation control 4 oz pure potassium meta-bisulfite powder Precise 50 ppm SO2 dosing Potassium Metabisulfite - SO2 (4 oz)

**Brand:** cellarscience
**Price:** $80901
**Availability:** ✅ In Stock

## Summary

> 🍇 Elevate your winemaking game with precision SO2 protection!

## Quick Answers

- **What is this?** Potassium Metabisulfite - SO2 (4 oz) by cellarscience
- **How much does it cost?** $80901 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/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

- • **Versatile Usage:** Ideal for must, wine, and sterilizing winemaking equipment
- • **Easy Integration:** Dissolves quickly in wine for seamless mixing and protection
- • **Pure Potassium Formula:** Potassium-fixed meta-bisulfite ensures superior stability over sodium variants
- • **Trusted by Enthusiasts:** Highly rated with 4.6 stars from 117+ winemakers and hobbyists
- • **Precision Preservation Power:** 1/4 tsp delivers exact 50 ppm SO2 for flawless spoilage control

## Overview

Potassium Metabisulfite (4 oz) is a premium powder additive delivering precise sulfur dioxide (SO2) dosing to inhibit spoilage bacteria, indigenous yeast, and oxidation in winemaking. With a potassium-fixed formula, it offers enhanced stability and is easy to dissolve and mix into must or wine. Trusted by hobbyists and professionals alike, it ensures your wine stays fresh and perfectly preserved.

## 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.

Review: Works well - Great for sterilizing my equipment and does an excellent job for what it was meant to do
Review: Works - Really works!! I try so many things to keep my clothes white and this definitely works butttttt after I used them and stein them again just turned brown

## 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 | #199,559 in Health & Household ( See Top 100 in Health & Household ) #339 in Potassium Mineral Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (117) |
| Date First Available | July 29, 2017 |
| Is Discontinued By Manufacturer | No |
| 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:** 4.0 Ounce

## Images

![Potassium Metabisulfite - SO2 (4 oz) - Image 1](https://m.media-amazon.com/images/I/81+l-LNjQzL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by V***Y on February 3, 2026*

Great for sterilizing my equipment and does an excellent job for what it was meant to do

### ⭐⭐⭐⭐⭐ Works
*by S***A on January 6, 2026*

Really works!! I try so many things to keep my clothes white and this definitely works butttttt after I used them and stein them again just turned brown

### ⭐⭐⭐⭐ A great sterilizer
*by M***T on March 30, 2024*

Use only as directed.

## 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 Colombia*
*Store origin: CO*
*Last updated: 2026-02-20*