---
product_id: 58315161
title: "Potassium Metabisulfite - SO2 (4 oz)"
brand: "cellarscience"
price: "$31"
currency: NZD
in_stock: true
reviews_count: 8
category: "Cellar Science"
url: https://www.desertcart.nz/products/58315161-potassium-metabisulfite-so2-4-oz
store_origin: NZ
region: New Zealand
---

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

**Brand:** cellarscience
**Price:** $31
**Availability:** ✅ In Stock

## Summary

> 🍇 Elevate your wine game with precision preservation!

## Quick Answers

- **What is this?** Potassium Metabisulfite - SO2 (4 oz) by cellarscience
- **How much does it cost?** $31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/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 without disrupting flavor
- • **Trusted by Winemakers:** Highly rated with 4.6 stars and proven results in home and professional wine crafting
- • **Versatile Sterilization:** Perfect for sanitizing equipment and protecting your vintage from unwanted microbes
- • **Precision Preservation Power:** Add exactly 50 ppm SO2 per 5 gallons for flawless spoilage control
- • **Pure & Potassium-Fixed Formula:** Potassium-based powder ensures effective oxidation and bacteria management

## Overview

Potassium Metabisulfite (4 oz) is a potassium-fixed powder delivering 50 ppm SO2 per 5 gallons, expertly designed to control spoilage bacteria, indigenous yeast, and oxidation in winemaking. Trusted by enthusiasts and professionals alike, it dissolves easily for smooth integration and effective sterilization, ensuring your wine stays fresh and flawless.

## 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 | #151,788 in Health & Household ( See Top 100 in Health & Household ) #282 in Potassium Mineral Supplements |
| Brand | CellarScience |
| Brand Name | CellarScience |
| Concentration | 50 parts_per_million |
| Customer Reviews | 4.6 out of 5 stars 119 Reviews |
| Flavor | Unflavored |
| Item Form | Powder |
| Item Weight | 0.25 Pounds |
| Manufacturer | CellarScience |
| Number of Items | 1 |
| Primary Supplement Type | Potassium |
| UPC | 843200100596 |
| Unit Count | 4.0 Ounce |

## 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 New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-27*