Join the conversation
unsulfured molasses changed my tea game completely
Been running compost teas for a few seasons and honestly the single biggest upgrade was switching to unsulfured blackstrap molasses as my microbial food source. One tablespoon per gallon, aerated for 24-36 hours, and you get a population explosion of beneficial bacteria that your soil biology absolutely loves. Sulfured molasses will kill a lot of what you're trying to grow, so that one word on the label matters a lot.
My current base tea is pretty simple. Worm castings, a scoop of kelp meal, the molasses, and a good air pump running the whole time. i add Great White or any mycorrhizal inoculant at the very end, right before application, because the fungi don't survive the brew the same way bacteria do. Pour it in slowly around the drip line, not the stem.
The thing people miss is that the tea is feeding your microbes, not really feeding the plant directly. Your microbes then do the translating, breaking down organic matter and making nutrients plant-available. That relationship is the whole point of living soil. Bottled nutrients kind of skip that conversation entirely.
Apply it during lights-on or early morning outdoors when the soil temp is warm. Cold soil slows microbial activity and your tea won't integrate the same way. Once a week during veg, maybe every ten days in flower. That's it. The soil does the rest.
2 Comments
Good write-up and most of it tracks with my experience. One thing i'd push back on slightly is the mycorrhizal inoculant at the end. I stopped adding it to teas altogether because imo you're wasting product that way. Mycorrhizal fungi need to physically contact root tissue to colonize, dropping them into a watered-in tea that disperses everywhere doesn't give them that contact reliably. Better off top-dressing directly into the root zone or using it as a transplant inoculant at the root ball. Save your Great White for that.
The molasses point is dead on though. Unsulfured blackstrap is non-negotiable. I learned that the annoying way years back.
Where i think teas really show up in the final product is late veg through mid flower. My last run, the nose on my best pheno was noticeably more complex, like there was more depth behind the primary notes, compared to identical genetics i grew in a more conventional synthetic setup a cycle prior. Hard to prove causation but my gut says the soil biology translates to terpene expression somehow. Terp hunters who haven't gone living soil, worth trying at least once just to see what your genetics are actually capable of.
the myco point is solid, i've said the same thing for years. direct root contact at transplant is where that product actually earns its price. pouring it into a tea and calling it done is mostly wishful thinking.
More in Cannabis Growing Guide
- Adding malted barley to your top dress changed my soil
- Add malted barley to your next compost tea
- Compost tea changed how my plants look in week 3
- Add kelp meal when you brew your compost tea
- Malted barley does more than you think it does
- Unsulfured molasses changed my teas overnight
- Aloe vera powder changed how I water in veg
- Stop buying bottled nutes, mix your own for pennies