---
product_id: 511501247
title: "Potassium Metabisulfite - SO2 (4 oz)"
brand: "cellarscience"
price: "€ 36.85"
currency: EUR
in_stock: true
reviews_count: 5
category: "Cellar Science"
url: https://www.desertcart.be/products/511501247-potassium-metabisulfite-so2-4-oz
store_origin: BE
region: Belgium
---

# 113 g pure potassium metabisulfite powder 50 ppm SO2 precision dosing Made in USA quality assurance Potassium Metabisulfite - SO2 (4 oz)

**Brand:** cellarscience
**Price:** € 36.85
**Availability:** ✅ In Stock

## Summary

> 🍷 Preserve your vintage like a pro — precision SO2 control in every pinch!

## Quick Answers

- **What is this?** Potassium Metabisulfite - SO2 (4 oz) by cellarscience
- **How much does it cost?** € 36.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/511501247-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

- • **Made in the USA:** Crafted domestically for consistent quality and reliability
- • **Easy Integration:** Dissolves quickly in wine for seamless blending without altering flavor
- • **Trusted by Winemakers:** Highly rated with 4.6 stars from 117 reviews, a staple for cellar pros
- • **Precision Preservation Power:** Add exactly 50 ppm SO2 per 5 gallons for optimal spoilage control
- • **Pure & Potassium-Fixed Formula:** Unflavored, high-purity powder ensures clean, effective oxidation protection

## Overview

Potassium Metabisulfite (4 oz) by CellarScience delivers 50 ppm sulfur dioxide per 5 gallons, expertly controlling spoilage bacteria and oxidation in winemaking. This pure, unflavored powder dissolves easily for smooth integration, trusted by enthusiasts and professionals alike, and proudly made in the USA.

## 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 |
| Concentration | 50 parts_per_million |
| Country of Origin | USA |
| Customer Reviews | 4.6 out of 5 stars 117 Reviews |
| Flavor | Unflavoured |
| Flavour | Unflavoured |
| Item Form | Powder |
| Item Weight | 113 g |
| Manufacturer | CellarScience |
| Manufacturer Part Number | AD495 |
| Model number | AD495 |
| Net Quantity | 113.4 Grams |
| Number of Items | 1 |
| Primary Supplement Type | Potassium |
| UPC | 843200100596 |
| Unit Count | 113.4 Grams |

## Product Details

- **Brand:** CellarScience
- **Concentration:** 50 parts_per_million
- **Flavour:** Unflavoured
- **Item Form:** Powder
- **Item Weight:** 0.25 Pounds
- **Manufacturer:** CellarScience
- **Net Quantity:** 113.4 Grams
- **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)
- 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 Belgium*
*Store origin: BE*
*Last updated: 2026-04-23*