---
product_id: 511501247
title: "Potassium Metabisulfite - SO2 (4 oz)"
brand: "cellarscience"
price: "423 kr"
currency: NOK
in_stock: true
category: "Cellar Science"
url: https://www.desertcart.no/products/511501247-potassium-metabisulfite-so2-4-oz
store_origin: NO
region: Norway
---

# Pure potassium-based powder 50 ppm SO2 precision dosing Made in USA quality Potassium Metabisulfite - SO2 (4 oz)

**Brand:** cellarscience
**Price:** 423 kr
**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?** 423 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/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

- • **Proven by Winemakers:** Highly rated by 120+ users for sterilization and oxidation control
- • **Effortless Integration:** Dissolves quickly for seamless blending into your must or wine
- • **Potassium-Powered Purity:** Potassium meta-bisulfite ensures clean, effective spoilage control
- • **Precision Preservation Power:** 1/4 tsp delivers exact 50 ppm SO2 for flawless wine protection
- • **Trusted American Craftsmanship:** Proudly made in the USA with premium quality standards

## Overview

Potassium Metabisulfite (4 oz) by CellarScience is a premium potassium-based powder designed to deliver precise 50 ppm sulfur dioxide levels, effectively controlling spoilage bacteria, indigenous yeast, and oxidation in winemaking. Made in the USA, this unflavored additive dissolves easily for smooth integration into your must or wine, ensuring professional-grade preservation trusted by over 120 satisfied users.

## 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 |
| ASIN  | B074D988ND |
| Brand | CellarScience |
| Concentration | 50 parts_per_million |
| Country of Origin | USA |
| Country of Origin  | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (123) |
| Date First Available  | 16 May 2021 |
| Flavor | Unflavoured |
| Is Discontinued By Manufacturer  | No |
| Item Form | Powder |
| Item Weight | 0.25 Pounds |
| Item Weight  | 113 g |
| Item model number  | AD495 |
| Manufacturer | CellarScience |
| Manufacturer  | CellarScience |
| Manufacturer Part Number | AD495 |
| Material Type Free | No Artificial Colours |
| Model number | AD495 |
| Net Quantity  | 113.4 Grams |
| Number of Items | 1 |
| Package Dimensions  | 23.49 x 14.71 x 1.09 cm; 113.4 g |
| Primary Supplement Type | Potassium |
| Product Benefits | Control spoilage bacteria and indigenous yeast |
| 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
- **Material Type Free:** No Artificial Colours
- **Net Quantity:** 113.4 Grams
- **Number of Items:** 1
- **Primary Supplement Type:** Potassium
- **Product Benefits:** Control spoilage bacteria and indigenous yeast

## 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 Norway*
*Store origin: NO*
*Last updated: 2026-09-16*