Viniflora CH16 Dry Malolactic Bacteria - 1.5 g

Viniflora CH16 Dry Malolactic Bacteria - 1.5 g

Malolactic Bacteria Accessories  
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1.5 grams. Good for 66 gallons.

Viniflora CH16 is a freeze-dried pure culture of Oenococcus oeni. This malolactic bacterium has been carefully selected to induce malolactic fermentation in red wine with high alcohol levels, after direct inoculation. Viniflora CH16 has been isolated from a 16% Petit shiraz wine in the Russian River area of California, USA. The bacterium's natural environment gives a good picture of its application; CH16 has been carefully selected for its outstanding ability to conduct fast malolactic fermentation in high alcohol red wine (up to 16% v/v) with a pH value above 3.4.


  • Very high fermentation speed
  • Low production of volatile acidity
  • Outstanding tolerance to high alcohol levels.
  • Excellent all round tolerance to pH, temperature and SO2
  • No production of biogenic amines


Viniflora CH16 should be added to dry wine, immediately after the alcoholic fermentation. Viniflora CH16 should always be inoculated directly into the wine. No rehydration or reactivation is required.

For more information about ML Bacteria, please see MoreWine!'s Guide to Malolactic Fermentation.

Item # DYWM7
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.05 LBS
Community Q&A

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Browse 7 questions Browse 7 questions and 71 answers
Why did you choose this?
MoreFlavor Store
Red wine
Daniel Andrew T on Mar 10, 2021
Need it
Keith K on Nov 26, 2020
Red wine
Daniel Andrew T on Mar 10, 2021
I have a stuck ML fermentation
William R on Feb 13, 2021
Need it
Keith K on Nov 26, 2020
used before
Michael R on Oct 29, 2020
Anthony C on Oct 27, 2020
FRITZIE DELINCE on Oct 27, 2020
I'm making wine
Aaron S on Oct 26, 2020
Cust Serv Recommended
Mitch M on Oct 22, 2020
supposed to work at high sulfite level
Charles R on Oct 20, 2020
Recommended by Smart Winemaking
Craig W on Oct 20, 2020
I Like the product
Stephen C on Oct 13, 2020
Used in past - good results
Frank L on Oct 12, 2020
kamila L on Oct 8, 2020
good previous experience
Mike A on Sep 28, 2020
You are a good reliable company
Daniel F on Sep 22, 2020
Recommended by a friend
Richard R on Sep 18, 2020
Recommended by Home Winemaking Channel on YouTube
Andrew G on Sep 16, 2020
I am making a red wine, and this is very alcohol tolerant.
CHRISTINE W. on Sep 16, 2020
good previous experience
Russ Brodeur on Sep 15, 2020
Used it before
Inez V on Sep 15, 2020
Previous purchase ++++
Eileen G on Sep 15, 2020
Description sounded just right
Piermaria O on Sep 14, 2020
always use it
Thomas M on Sep 11, 2020
worked well
Gary G on Sep 10, 2020
You can see this one fizzing as it works
Greg Stricker on Sep 8, 2020
I have used this product in the past with success.
FERNANDO A on Sep 3, 2020
Good past experience. Using on Frontenac, a high acid cold hardy red grape. Cellar likely to be 65-70 F
Curtis P on Sep 2, 2020
My Marquyette really needs the Malolactic ferment
Tracy M T on Aug 28, 2020
MICHAEL O on Aug 27, 2020
need this to insure malolactic fermentation in a red blend
Robert A. r on Aug 27, 2020
been using for 3 years, and really like the results
John J on Aug 27, 2020
high alcohol tolerance
michael g on Aug 26, 2020
wanna try it
Chuck W on Aug 20, 2020
consistent results
Richard E. R on Aug 7, 2020
Used before, worked well
Jerome S on Aug 3, 2020
Ben J on Jul 24, 2020
Last time I tried liquid and it cooked on the mailbox
Marc M on Jun 22, 2020
Great for my wines
Juan B. O on May 5, 2020
I always use it - it's the best!
Joe S on May 2, 2020
I have used this before and has a helped
Robert C on Apr 21, 2020
For some Chardonnay juice I'm going to receive
Kurt S on Apr 8, 2020
seemed best description for the wine i'm making
don i on Mar 24, 2020
Making 15 of Syrah from Australian Shiraz juice, should be good MLB for this wine
Kian T on Feb 17, 2020
Recommend by the home winemaking channel in youtube
John R on Feb 12, 2020
I have used Vinaflora CH16 before. It has reliably completed MLF.
Michael N on Nov 23, 2019
Dry ML bacteria seems more reliable than liquid packs
Doug H on Oct 26, 2019
Works well with high alcohol and high ph, and timing
Valued C on Oct 25, 2019
Great reviews and I have had problems with the strain I have been using
Daniel M on Oct 17, 2019
High Alcohol
Kenneth B on Oct 17, 2019
Because it works well for a barrel of Cab. Used it for years.
Pietro B on Oct 10, 2019
I have a stuck ML fermentation
William R on Feb 13, 2021
used before
Michael R on Oct 29, 2020
do i need a ice pack?? it is a freeze dried ML
Peter Fox on Sep 24, 2019
BEST ANSWER: No ice pack necessary for shipping, IMO. When you get it, store it in the freezer until you're ready to use it. I sprinkle in into the wine at the end of primary fermentation and stir it in. Keep the temperature at 62 F or above. In about 6 weeks, MLF should be complete. You will see little bubbles coming up out of the wine during MLF.
Peter Fox on Oct 2, 2019
Dry Malolactic Bacteria - Viniflora CH16
Dry Malolactic Bacteria - Viniflora CH16
BEST ANSWER: ACTI-ML isn't the nutrient designed to be added to the wine ... it's used during the initial hydration of the ML bacteria. The nutrient to add to the wine during ML is Opti Malo Plus.
Peter Fox on Oct 1, 2019
Dry Malolactic Bacteria - Viniflora CH16
Dry Malolactic Bacteria - Viniflora CH16
BEST ANSWER: The CH16 bacteria is designed to be used dry, so you can choose to use the Acti-ML or not. Acti-ML is normally used if the conditions for ML fermentation are known to be difficult, this would include things like low nutrient conditions, low pH, high alcohol etc. Act-ML can also be added directly to the wine as a ML nutrient if needed.
The MoreWine manual MLF states that 2.5 grams are needed for 66 gallons, but this product is shown to be 1.5 grams and good for 66 gallons. Is this correct? If so, do I adjust the proportions of Acti-ML and Opti-Malo for 1.5 grams rather than 2.5 grams of bacteria?
Matt Sommerfeld on Sep 11, 2019
BEST ANSWER: Hello Matt, this particular strain of bacteria is made to be used at 1.5 grams per 66 gallons of wine. The Acti-Ml and Opti-Malo plus dosages will remain the same. Acti-ML is to be used at 0.84 grams per gallon of wine and Opti-Malo plus is 1 gram per gallon of wine.
Normally use VP41 which must be kept in the freezer until used. Is this requirement the same for CH16?
Michael Cesarz on Oct 8, 2020
BEST ANSWER: I don't know. It wasn't frozen when it arrived. I keep it in the refrigerator.
Max batch size is 66 gallons. I am only making 6. Any concerns with inoculating the smaller batch with the entire packet? Asking due to the short shelf life of the bacteria once opened.
Kevin E Hart on Feb 10, 2019
BEST ANSWER: Hi Kevin - Adding the full packet should not cause any problems, it will cause the MLF to move along faster which is not a bad thing. You could store any leftovers in the freezer but it's not guaranteed to hold for a long period of time.

4.8 / 5.0
16 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 4 out of 5
ML Bacteria
Finished in a good time. Recommend
November 5, 2020
6 months ago
Rated 5 out of 5
Good product
Working great so far
November 3, 2020
6 months ago
Rated 5 out of 5
I’m the first time wine maker professional and use dry malolactic bacteria.l love it
October 29, 2020
6 months ago
Rated 3 out of 5
received at room temperature
I've always picked this up locally in a freezer and transported to my place on ice. Not sure if this relatively expensive product is still viable. I guess I'll find out soon!!
October 14, 2020
7 months ago
Rated 5 out of 5
Off to the races.
Started a starter with apple juice and distilled water and it took off post haste.
September 1, 2020
8 months ago
Rated 5 out of 5
Worked fast
I am making Cabernet Sauvignon wine from my grapes. I had crushed out about 12 gallons, so 2 six gallon fermenters. The instructions said this would inoculate 66 gallons and I divided it between the 2 batches, along with a package of malolactic nutrient. In just a few hours it was bubbling away. Very pleased.
September 25, 2019
1 year ago
Rated 4 out of 5
Too early to rate other than its fermenting. Will comment when it’s time to bottle.
September 21, 2019
1 year ago
Rated 5 out of 5
Good ML action from pitch
Package arrived in sealed plastic bag. I kept in fridge for about 4 days. I pitched ML with the ML nutritions per instruction and has been a strong and consistent ML action. So far happy with result; will check chromatography soon.
October 23, 2018
over 2 years ago
Rated 5 out of 5
Works well with my yeast. No issues
September 19, 2018
over 2 years ago
Rated 5 out of 5
Excellent ML Bacteria
This product is easy to use as it is packaged as an appropriate dose for 1 barrel (60 gallons) of wine. I have used it for three vintages now and had great results. No MLF start or completion issues. I use ActiML and rehydrate the ML bacteria before inoculation per the MoreWine recommendations. I would definitely recommend this product.
February 7, 2018
over 3 years ago