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Potassium Metabisulfite


Product Number: 8359x

Availability: In stock

Potassium Metabisulfite is a widely used winemaking agent. It effectively kills wild yeast and bacteria. The condition of your grapes and pH levels may vary the amount needed. This agent helps to clear the way for your yeast, better allowing it to do its job. Sulfites also aid in inhibiting enzymatic browning in white wines, and improves the flavor when used correctly. Metabisulfite does lose potency over time, so you should replace your supply at least annually. If you have some old metabisulfite, it can be used for sanitizing purposes.

  • 1/4 teaspoon per 5 gallons, which yields 50 ppm.

Gravity Level Medium

Customer Reviews

10 People have reviewed this product

Overall Rating: 5.0

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Killed it Review by Cameron

(Posted on 10/14/13)

Product Rating:

Did it's job and completely stopped fermentation. Couldn't ask for more!

Must have for aging Review by GriFF

(Posted on 7/23/13)

Product Rating:

Used this for aging my wine kit from Midwest. The instructions say to use if you intend to store your wine for extended periods of time (most reds). Purchased the 1 lb bag because it is much cheaper per gram then the smaller bottle.

Great sanitizer Review by Tim

(Posted on 6/25/13)

Product Rating:

As other reviewers mentioned, this works as a great sanitizer. A gallon can be mixed up and stored up to 6 months. Most books I've read also suggest adding some with each wine racking. The potassium version is preferred over the sodium version as well. The cost difference is not significant at all.

Cheap and Easy Wine Sanitizer Review by Andy

(Posted on 4/10/13)

Product Rating:

I use this on everything that touches the must from primary ferment all the way to bottling. Cheap and easy to use.

Does Its Job Review by Bridget

(Posted on 3/11/13)

Product Rating:

The potassium metabisulfite was used in my winemaking to help kill wild bacteria/yeast so that the wine wouldn't go over the fermentation level wanted. I am sure to replace my supply once a year as I have noticed that over time it seems to really clump up and have read it becomes less effective.

Great addition Review by James

(Posted on 2/15/13)

Product Rating:

This is a must. Me and my wife love wine, but 30 bottles from one kit is a lot, and we would like to ensure it lasts.

Great for long storage of wines Review by Tim

(Posted on 1/16/13)

Product Rating:

If you're making wine and want to age the wine for long periods (like over a year) then adding a little extra of this is advisable. Wine kits come with some in them, but the instructions say to add a little extra if you plan on storing for a long time.

Sanitation is key Review by Stephen

(Posted on 1/5/13)

Product Rating:

Absolutely necessary to protect your wine from the horrors of bacteria and oxidation. A little goes a long way for sure, so it can be hard measuring out the right amount for smaller batches.

De-chlorinate your water Review by Ilana

(Posted on 12/18/12)

Product Rating:

You can remove Chloramine with this for home brewing, as well as use it for your wine making. Easier to measure, if you have a very precise scale.

easy to use Review by John

(Posted on 10/27/12)

Product Rating:

like the powder better than tablets, just measure and add

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Potassium Metabisulfite

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