---
product_id: 243692057
title: "Potassium Metabisulfite - SO2 (4 oz)"
brand: "cellarscience"
price: "$20903"
currency: COP
in_stock: true
reviews_count: 5
url: https://www.desertcart.co/products/243692057-potassium-metabisulfite-so2-4-oz
store_origin: CO
region: Colombia
---

# Optimized for 5 gallons wine/must 4 oz pure potassium powder 50 ppm SO2 precision dosing Potassium Metabisulfite - SO2 (4 oz)

**Brand:** cellarscience
**Price:** $20903
**Availability:** ✅ In Stock

## Summary

> 🍇 Elevate your craft with precision SO2 protection — because your wine deserves the best!

## Quick Answers

- **What is this?** Potassium Metabisulfite - SO2 (4 oz) by cellarscience
- **How much does it cost?** $20903 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/243692057-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 effortlessly for seamless blending into your wine or must
- • **Pure Potassium Formula:** Potassium-fixed meta-bisulfite ensures superior stability over sodium variants
- • **Trusted by CellarScience:** Backed by 4.6-star rating from 115 winemakers who demand quality
- • **Oxidation & Spoilage Defense:** Effectively controls bacteria, indigenous yeast, and oxidation for flawless flavor
- • **Precision Preservation Power:** Delivers exact 50 ppm SO2 to safeguard your vintage

## Overview

Potassium Metabisulfite (4 oz) from CellarScience delivers a precise 50 ppm sulfur dioxide dose to protect 5 gallons of wine or must from spoilage and oxidation. This potassium-fixed powder dissolves easily, ensuring effective control of bacteria and yeast, preserving your wine’s integrity with trusted, professional-grade quality.

## 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
Review: Works

## 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 |
| Brand | CellarScience |
| Brand Name | CellarScience |
| Concentration | 50 parts_per_million |
| Customer Reviews | 4.6 out of 5 stars 115 Reviews |
| Flavour | Unflavoured |
| Item Form | Powder |
| Item Weight | 113 g |
| Item form | Powder |
| Item weight | 113 g |
| Manufacturer | CellarScience |
| Number of Items | 1 |
| Number of items | 1 |
| Primary Supplement Type | Potassium |
| Primary supplement type | Potassium |
| UPC | 843200100596 |

## Product Details

- **Brand:** CellarScience
- **Concentration:** 50 parts_per_million
- **Flavour:** Unflavoured
- **Item form:** Powder
- **Item weight:** 113 g
- **Manufacturer:** CellarScience
- **Number of items:** 1
- **Primary supplement type:** Potassium
- **UPC:** 843200100596

## 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 3 February 2026*



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



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



## Frequently Bought Together

- Potassium Metabisulfite - SO2 (4 oz)
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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-03-07*