What might affect the production and composition of kombucha?

Ingredients

Tea Type: Black, green, oolong, white, herbal etc

Sugar Type: White cane sugar, brown sugar, honey

Water Quality: Filtered, distilled, tap

SCOBY

Health and Quality of SCOBY: Freshness, contamination, strain types

Yeast to Bacteria Ratio which affects fermentation

Fermentation Conditions

Flavour (additions)

Nutritional Composition

Environmental Factors

Temperature

Fermentation Time

Oxygen Availability (aerobic vs anareobic)

Secondary Fermentation: Adding flavorings after the initial fermentation (e.g., fruit juices, herbs)

Primary Fermentation Additives: Herbs, spices, fruits

pH and Acidity

Inital pH affects growth

Final pH

Vitamins and Minerals

Probiotics

Organic Acids

Temperature

Light (sunlight)