Categories

 Loading... Please wait...
show / hide sidebar

Categories

Learning Center

Our Learning Center offers how to guides, white papers, presentations, calculators and award winning recipes for your next batch of beer or wine.

Click Here To Visit For our Special Offers and Great Deals

Image 1

4007 MALO-LACTIC CULTURES FOR WINEMAKING

$8.99
SKU:
BING-YST-WY4007
Weight:
0.50 LBS
Shipping:
Calculated at checkout
Quantity:

Product Description

CALL BEFORE ORDERING ONLINE.  We generally stock only 1 or 2 of these at a time. 

 

Wyeast 4007 pure liquid malo-lactic bacteria culture can be expanded for use with larger volumes through the use of a starter. Starter cultures are a common practice in the wine making industry. 

 
What is a starter?
 
A starter is a term that refers to the process of expanding the volume of a culture by inoculating a volume of media and allowing it to incubate. The incubation period allows the culture to consume nutrients and carbohydrates in order to multiply. Once the culture has been allowed to expand (or multiply), it is ready to inoculate a larger volume of must.
 
How to Create a Starter Culture
 
Various media can be used for creation of a starter culture depending on available resources and technical capabilities. Sterile juice (grape, pear, or apple) diluted 1:1 with sterile water is an excellent media. Additions of nutrient (Yeast Extract or other ML nutrient) and pH adjustment (4.0-4.5) will be beneficial.
 
If a culture is to be expanded in sterile juice, then the culture can be added by itself. If the culture is to be expanded in non-sterile must, then it is best to utilize a coculture method where yeast is inoculated at a low level (103 to 104 CFU per ml) at the same time as the addition of the malo-lactic bacteria culture at a level of 107 CFU per ml. This provides some protection from growth of undesirable organisms as well as allowing the bacteria to become acclimated to a low pH and alcoholic environment.
 
The starter should be sized to provide an inoculum that is 1 to 5% of the total volume of the batch. For example: A 1 gallon starter could inoculate up to a 100 gallon batch of wine.
 
The following is one example of a method for creating a starter culture:
  • Dilute apple juice 1:1 with sterile water.
  • Add 0.5% yeast extract by volume for nitrogen supplementation or use a ML bacteria nutrient
  • Adjust pH to 4.0
  • Bring must temperature to 70 to 75°F (21 to 24°C)
  • Inoculate starter with 5-10% pure liquid malo-lactic bacteria and if a coculture method is to be used, add the yeast at this time as well.
  • Maintain temperature at 70 to 75°F (21 to 24°C) for 7 to 10 days. Very light CO2 production will be visible and the turbidity should increase over the 7 to 10 days.
  • Add starter to wine

Product Reviews

Write Review

This product hasn't received any reviews yet. Be the first to review this product!

To edit this page simply login to the control panel, click the Website Content tab and choose the View Web Pages option. Click Edit next to the Shipping & Returns page and you can change this text. A sample returns policy is shown below which you can edit as needed.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Find Similar Products by Category

Find Similar Products by Category

Back to Top