Generalization of how tolerant various microorganisms are to free SO2. Sulfur dioxide (SO2) has the ability to weaken the cell walls of organisms resulting in their death or inability to function. It can also react and bind with phenolic and other compounds impacting color, sweetness, bitterness, and astringency. SO2 tolerance is the ability of an … Continue reading Sulfur Dioxide (SO2) Tolerance
If you read some of my other articles on sulfites and sorbates, you will know that I am not an advocate of using Campden, potassium metabisulfite, sulphite, SO2, or whatever other term you use for this preservative and sanitizing compound. The biggest reason I am not an advocate is because I think it’s overused, especially … Continue reading Potassium Metabisulfite: The Overview
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.
Mold... Just the name can conjure up bad images and usually, it’s not something that is positive. There are a few positive occurrences, think cheeses like blue or Gorgonzola, where the mold makes that pungent flavor that many enjoy. However, for hard cider making, mold is usually associated with things not going the way they … Continue reading Mold: The What, Why, and How of It.
Fresh pressed apple and pear juice will naturally have the microflora (yeast and bacteria) to ferment into hard cider. For many people, they use these natural organisms to create great hard cider. For others, they want to control the flavors and process and will use commercial yeast. In both cases some people use Campden tablets, … Continue reading Help! My cider isn’t fermenting.