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Bentonite is a negative charged, clay-like mineral, that, like sparkalloid, removes positively charged particles. It works best when the wine is at warmer temperature so we suggest clearing with bentonite in the late spring or early summer. It is also more effective at a lower pH because the positive charge on proteins is stonger at lower pH levels.

Generic low level fining for five gallons: blend 1/2 tsp (approx 3g) with 1/2 cup of hot water (140 to 200 F) in a blender for 1-2 minutes. Let stand for 60 minutes, mix, and stir into wine. Let stand for 10-14 days and then rack off. This is fining at .16g/L
For a generic mid level addition: Follow above directions but use 9 grams of with 3/4 cup of water. This is fining at .5g/L.

A more scientific method is to make a stock solution of 5% bentonite and then run bench trials to see the lowest level that solution that will clear the wine sufficiently. Fining is non-selective so at the same time you are removing yeast you are also removing other desireable phenolic compounds. Thus the lowest level concentration that will do the job is always the most desired. To make a 5% solution add 50 grams to 850ml of hot water and mix it thoroughly, then top off to a final volume of 1L. You will need to set up a trial with clear jars of the same volume. Add different amounts of solution to achieve addition rates between .3g/l and 2.0g/l. You will have to do some math! Let the trials clear overnight. For more technical information check out BK653 - Monitoring the Winemaking Process from Grapes to Wine - Techniques & Concepts.

When making a wine kit from concentrate you will often add the bentonite on the first day. This happens for a few reasons. It is used as a nucleation sites for the removal of CO2. Additionally, the bentonite is moved all around the wine by the CO2 and thus less can be used more efficiently in a shorter time period.

Community Q&A

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Why did you choose this?
MoreFlavor Store
Need some
Valued C on Oct 8, 2021
Works great
Larry M on Sep 9, 2021
Need some
Valued C on Oct 8, 2021
Need for Wine
Mike M on Sep 22, 2021
Works great
Larry M on Sep 9, 2021
Making peach wine
Theo Macris on Aug 27, 2021
Works very well in our process.
Wrex Products I on Aug 11, 2021
Leonardo E on Aug 11, 2021
to use in primary fermentation for meads
Greg M M on Aug 10, 2021
Need small amount
Eric Kyle E on Jul 30, 2021
Dustin L Winterowd on Jun 21, 2021
Clearing up my mead
Valued C on May 12, 2021
Best deal
Charles C on Mar 18, 2021
Hoping to clear some mead
Jarod H on Mar 5, 2021
Clearing mead
Christopher H on Feb 23, 2021
To help to clear my wine
junor on Jan 22, 2021
To clear mead
Nick a A on Jan 14, 2021
I need it to make Anti- Itch cream. You have the best price. Thanks
Loretta H on Dec 27, 2020
backup supply
Thomas R J on Dec 4, 2020
Debra G on Nov 29, 2020
familiar with product
Jim B on Nov 6, 2020
Clearing fruit wines
Nathan B on Oct 20, 2020
You guys have a great price on bentonite clay.
Jenna L on Oct 3, 2020
To clarify fruit wine
Danielle L on Sep 18, 2020
good for fining wine
Charles P on Sep 16, 2020
I read that adding bentonite to Florida's sandy soil helps with water retention
IRMA S L on Sep 8, 2020
Good fining agent, but is more difficult to rack because in doesn't compact well.
Michael S on Sep 2, 2020
Need for dehumidifier
Sheri J on Sep 1, 2020
I ordered it last year very good product we are thinking of buying a lot of our supplies for the winemaking through you for next harvest
David G on Aug 28, 2020
No fish as people may be allergic
Karen F on Aug 25, 2020
Help fine mead
W.M. V on Aug 3, 2020
to clarify mead
Bob on Jun 24, 2020
Ada B on May 29, 2020
It's an excellent food for our bamboo
Jerome M. G on May 13, 2020
Valued C on May 1, 2020
Best to clarify stubborn wines
Chris M on Apr 22, 2020
Best price per pound, even after shipping cost.
Gerard T on Mar 19, 2020
Need more.
Rodney C on Jan 25, 2020
Clear wine
Dani E on Jan 14, 2020
I add bentonite to almost all my ferment to remove any chance of protein instability and I think it helps the ferment progress.
craig M on Jan 14, 2020
clarify white wine
Debra K S on Nov 8, 2019
Used before. Like it.
Barry S on Oct 28, 2019
To clarify cider.
Dominic Q on Oct 28, 2019
Great for clarifying wine
DAVID P on Oct 14, 2019
I like this, it works for me!
john on Sep 16, 2019
To clarify wine
Dan Montgomery on Sep 16, 2019
Clearing/fining of white wine before bottling.
Kevin E Hart on Aug 28, 2019
to clarify my wine
dennis webb on Jun 29, 2019
I ran out of it.
Susan Hatton on Jun 22, 2019
to Fine some of my cider.
David S on Apr 23, 2019
first step to fine cider
david j on Jan 29, 2019
Bentonite is a great clarifyng agent for whites. I add it to the juice after pressing the grape, wait for 24 hours, and then inoculate. This eliminates dirt, seed and skin particles in juice and reduces tannin in the wine.
Hayri O on Oct 24, 2018
Need for Wine
Mike M on Sep 22, 2021
Making peach wine
Theo Macris on Aug 27, 2021
Do you sell 50 lb sacks?
raul de la garza on Feb 19, 2018
Bentonite 50 lb sack
Bentonite 50 lb sack

4.0 / 5.0
2 Reviews
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1 Star
Rated 3 out of 5
It worked well, its just hard to smooth out.
March 23, 2021
7 months ago
Rated 5 out of 5
Great quality.
I bought to use to mix with linseed oil to make impasto for my oil paints. Works great!
June 13, 2020
1 year ago