The mother SCOBY can be seen under the new SCOBY formation in a circle to the bottom right of the brew, the new layer covering the entire surface. A darker section of yeast has collected under the new SCOBY growth towards the middle, but no Kombucha mold.
Raised bumpy white SCOBY growth forms on top of the initial darker yellow growth, forming an unusual but perfectly safe Kombucha SCOBY layer. No fuzzy or powdery areas present, there is no mold, but the brew may be a little cold.
A closer look at some yeast in the corner of a new Kombucha Continuous Brew, not mold.
Brown yeast globs under the surface of new Kombucha SCOBY growth, not mold
Not mold on Kombucha, probably early SCOBY growth if given more time to develop, could be yeast
Fresh white Kombucha SCOBY growth, no Kombucha mold
Early translucent and white SCOBY growth on a young batch, not mold
Large yeast globs present under the surface of a very young brew with just beginning new SCOBY formation, but no mold present.
Normal but bumpy Kombucha SCOBY growth on top of the original 2 SCOBY circles of culture and the exposed brew, no Kombucha mold.
Unusual, bubbly SCOBY forming but a safe Kombucha brew, no mold, could be a bit cold - See: Kombucha Heat Mats
New white raised sections of new SCOBY growth will eventually connect to make a full culture across the top of the brew, with some sections looking whiter than others until the culture grows together and takes shape.
3 areas of bubbles and yeast embedded in new SCOBY growth, not mold.
Thin SCOBY forming over the original culture, Not Mold
Darker SCOBY formation with patches of yeast takes on a blueish tint but no Kombucha mold on top so the brew is safe
White lumps of new SCOBY formation appears above the brew with some darker yeast areas underneath, no mold
The very beginnings of SCOBY formation on a new batch of Kombucha, no mold
Healthy new SCOBY growth forming with some natural lumps, no mold
Area of new SCOBY growth forming over the Kombucha brew with yeast and the original culture floating beneath the surface, no mold
Thin Layer of SCOBY forming on top of the Kombucha brew, some bubbles visible underneath, not mold
A thin layer forming on a new brew, no fuzzy mold or suspicious growth, but might be a cold brew
Original SCOBY with new formation taking over, yeast collections and plenty of bubbles but no mold
The yellowish original mother SCOBY is below and the new layer of Kombucha SCOBY is growing white over the top of some of the brew and original culture as well as around the edges of the vessel. A few small green areas embedded in the new culture growth are normal yeast.
The original orange tinged Kombucha Culture joins with the new white/yellow growth. Areas of weak growth cluster in the upper left where the darker tea is visible below the thin SCOBY in that section, but no mold or other concerning formations.
Various sections of old brown Kombucha SCOBY show through the top of new SCOBY forming as a brew matures. The old sections will eventually give way to a fully white layer of new growth over the top, or may hold their position in the top layer and can be pulled apart once the brew is done.
A thin white layer of new SCOBY growth cannot hide the yellow and brown bubbles/yeast collection beneath the surface, indicating the brew might have been a little cool or the starter liquid might have contained more yeast than normal. However, no mold or concerning formations.
A thin layer of new SCOBY growth viewed from the side as it forms on top of the brew. The original culture can be seen floating a bit sideways and protruding above the top of the brew where lumpy sections of new white SCOBY form around it. The bubbles along the edge indicate good brew activity.
As a new SCOBY forms on top of the brew, sections in the center develop drier brown areas, but no fuzzy growth or powdery mold areas are present. These dry brown formations are more likely to occur in low humidity situations. There are a few nice bubbles forming along the edge indicating the brew is building natural effervescence.
The white dots of new SCOBY growth on this Kombucha brew are just the beginnings of the more visible layer, but a translucent layer has already formed to provide the base. There is no sign of mold on this brew, but this is a vulnerable stage and correct temperature will help prevent issues.
A new layer of white SCOBY is forming over the top of the brew, with original layers of SCOBY visible underneath and green yeast and bubbled areas embedded within and resting on top of some of the newer growth in the bottom half and on the right side of the photo.
The original, thin SCOBY floats below the surface of this weak looking Kombucha brew. The brown collections are normal yeast, indicating some activity, and there is no mold present. The temperature could be low or the brew could be just a day old.
These white dots are forming on top of a thin layer of SCOBY early on in the brewing process. At this stage, it's not clear, they could come together and form a SCOBY or might indicate contamination. It never hurts to simply wait and see if a brew is problematic, in this case, the dots came together and formed a new SCOBY.
The young layer of new SCOBY forming has trapped some bubbles and yeast below, but all looks normal as small areas of white have just started to appear and should begin connecting. The fact that the culture has come loose from the sides is not a problem as new layers will form where any culture is not present and eventually they will all grow together.
In this Continuous Brewer, only about 1 gallon of sweet tea has been added. The young brew shows a layer just starting to form across the top, but in the area where the original culture was floating above the level of the liquid, a lot of new white culture has started to form due to the exposure to extra oxygen.