Hydrogen sulfide: Difference between revisions
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Hydrogen sulfide (H<sub>2</sub>S), or "sulfide" is a yeast-derived off flavor. Sulfide aroma and flavor is often described as sulfurous like rotten eggs, "rhino farts", burnt match, or simply "sulfur". | {{resize|200%|(This article is in progress)}} | ||
Hydrogen sulfide (H<sub>2</sub>S), or "sulfide" is a yeast-derived off flavor, one of several volatile sulfite compounds. Sulfide aroma and flavor is often described as sulfurous like rotten eggs, "rhino farts", burnt match, or simply "sulfur". | |||
This is one of the most common off flavors that presents in cider and wine. It can also occur in beer and other fermented beverages. In fact, a slight note of sulfide may be acceptable in some styles of lager (beer). | This is one of the most common off flavors that presents in cider and wine. It can also occur in beer and other fermented beverages. In fact, a slight note of sulfide may be acceptable in some styles of lager (beer). | ||
Mercaptans, disulfides, and other badness. ??? | |||
Why is it produced? | Why is it produced? | ||
Lack of nutrients | |||
Others stressors | |||
How do we prevent it? | How do we prevent it? | ||
Nutrients | |||
Racking | |||
How do we get rid of it when it occurs? | How do we get rid of it when it occurs? | ||
Copper | |||
Ascorbic acid | |||
Aeration? / Aging? | |||
Revision as of 15:35, 27 February 2020
(This article is in progress)
Hydrogen sulfide (H2S), or "sulfide" is a yeast-derived off flavor, one of several volatile sulfite compounds. Sulfide aroma and flavor is often described as sulfurous like rotten eggs, "rhino farts", burnt match, or simply "sulfur".
This is one of the most common off flavors that presents in cider and wine. It can also occur in beer and other fermented beverages. In fact, a slight note of sulfide may be acceptable in some styles of lager (beer).
Mercaptans, disulfides, and other badness. ???
Why is it produced?
Lack of nutrients
Others stressors
How do we prevent it?
Nutrients
Racking
How do we get rid of it when it occurs?
Copper
Ascorbic acid
Aeration? / Aging?