Malolactic Fermentation and Citric Acid

Understanding the impact of Malolactic Fermentation to Citric Acid

Malolactic Fermentation or what is often referred to simply as MLF, is the process where lactic acid bacteria converts malic acid to lactic acid. For cider makers, MLF can be a very important process because apples are high in malic acid. As a result, MLF can reduce the acidity found in hard cider made from … Continue reading Malolactic Fermentation and Citric Acid

Cider Question: How can I encourage Malolactic Fermentation (MLF)?

How to encourage MLF

Malolactic fermentation (MLF) is a process that usually occurs after primary or alcoholic fermentation completes. Fundamentally, it’s the conversion of malic acid to lactic acid. Malic acid is more acidic compared to lactic acid so MLF reduces the acidity of your cider. Other reactions that impact aroma also occur. Diacetyl creation is one of the … Continue reading Cider Question: How can I encourage Malolactic Fermentation (MLF)?

Aroma Faults: Diacetyl

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Cider Aroma Faults: Butter Sometimes too much of a compound is the cause of a fault. Other times, the definition of whether its a fault depends on the beverage. Diacetyl (C4H6O2) is an example of such a compound. In most beers, it’s considered a fault but, in most California chardonnays, it’s desired. Butter is the … Continue reading Aroma Faults: Diacetyl

Bacteria and Hard Cider – It’s not all bad.

Bacteria & Hard Cider

When someone says bacteria, we generally have a negative reaction. Bacteria is a bad thing, right? We want to kill it to keep us from getting sick. However, not all bacteria is bad and especially when you are fermenting hard cider. Lactic Acid Bacteria, commonly called LAB, is the under-appreciated and often abused element in … Continue reading Bacteria and Hard Cider – It’s not all bad.

The Impact of Malolactic Fermentation on Specific Gravity

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The impact of MLF on Specific Gravity Malolactic Fermentation, also known as MLF, is the conversion of malic acid to lactic acid by lactic acid bacteria, known as LAB. It was mistakenly called fermentation because of the decarboxylation that occurs in the process. While we tend to think specific gravity measures the sugar in your … Continue reading The Impact of Malolactic Fermentation on Specific Gravity

Common Acids in Hard Cider

Apples and Acids: The common acids in hard cider

Apple and pear juice contain a variety of organic acids. Even sweet apples with high pH like Red Delicious and Ambrosia are still acidic. They won’t contain the same quantity as a tart and sharp Granny Smith or bittersharp cider apple, but they contribute to the hard cider flavors. When I assess apples for hard … Continue reading Common Acids in Hard Cider