Description
Selective removal of surface impurities to prevent spoilage compounds from contaminating fermenting fish sauce.
Technical
Physical separation of proteinaceous scum containing biogenic amines (histamine, cadaverine) and lipid oxidation products. Regular skimming maintains anaerobic conditions for halophilic microbes while removing aerobic spoilage organisms.
Culinary Significance
Critical for producing clear, complex umami sauces without bitter off-flavors - impacts final product viscosity and amino acid balance.
Science
Primary Reaction
Preventative removal of spoilage byproducts
Parameters
Temperature
30°C optimal
25°C to 35°C range
Time
12 months
3 months – 24 months
Equipment
Perforated bamboo skimmerCeramic fermentation jarsCheesecloth filters