A witch's brew to improve your life can be found in your backyard.
What causes the foaming? I've never seen such excessive foaming in my brews. The surface water of my brewer is never calm, its always thrashing about...maybe that is disapating the foam?
Foam. The presence of foam on the surface of tea is considered a positive sign, but just means there are free proteins, amino acids or carbohydrates present. This can occur as the result of adding fish hydrolysate, certain organic acids or carbohydrates. If worm compost was used, excessive foam suggests a few earthworms were in the compost and their dead bodies are providing this source of protein/carbohydrate. Excess protein or amino acids should not occur if bacteria are growing well, although dead worms may continue to release proteinaceous materials throughout the brewing cycle. Foam can be suppressed by using organic surfactants, such as yucca or vegetable oil (not olive or canola oil!). Don't use commercial de-foamers - every single one we have tested kills the organisms in the tea.
Some info for you SecretGardener
Huh?Foam can be suppressed by using organic surfactants, such as yucca
Can I ask where you go this information?
The Compost Tea Brewing Manual, Latest Methods and Research 5th Edition By Dr. Elaine Ingham
Hey, don't feel bad for posting. It's just good to post a source for where you got the info. I've tested the vegetable oil (I think we actually worked with Dr. E in the beginning in discovering this).
Personally, I don't consider it a good or bad sign as to the quality of your tea. Smell is a much better indicator if you don't have a microscope. Some of my best teas under the microscope never foamed at all, and some of the worst (almost completely devoid of life) had HUGE foam!
I typically just recommend the veggie oil so you don't have an overflowing of the bucket. Typically as little as a teaspoon will cure it.
If you use high quality compost and brew up some well-made tea and put it in a bottle, it will explode and be very stinky! There's possibility that your tea didn't contain a lot of biology, in which case it wouldn't have as high of oxygen demands and go anaerobic as quickly.
Just ACT no ferts
I let a batch go bad once and just moved the whole 55 gallons outside,got lazy and never drained it. In about a week it attracted several of those black and orange beatles that sniff out and eat dead animals.They fell in and drowned......it smells like death.For example, one time I had 3 batches going in our 5 gallon brewer at the same time in the garage. Hurt my knee and ended up not doing anything more than just shutting off the brewers. 2 weeks later when I got off crutches, they were so smelly and filled with slime and bio-film that I had to throw them away. You could smell it from 15 feet away it was so bad!