Sulphur Dioxide in Blackstrap Molasses

Hey all I have searched about a fair bit but can not find a straight yes or no answer nor a theory that explains enough.

So my question is, Can one bubble out(airate) Sulphur dioxide added to BS Molasses?
Or is there something that can neutralise the Sulphur but not affect the ability to raise a healthy fungi/bacterial tea for our lovies?

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I know that sodium bicarbonate neutralized sulfur dioxide. I have never tried it in molasess though. It is used on water and as a mist for odor.

Wasnt an answer but its all i know.

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Blackstrap has calcium, iron and potassium. Is this what you are after? I have seen several other using regular molasses.

This doesn’t answer your question but why not just pick up some unsulphured molasses?


I think it is worth noting that many don’t believe adding molasses will have much benefit and might even be an issue.
The sugars will feed friendly Mycorrhizae but also other less friendly bacteria. Some believe the molasses increased sugars within the plant itself, but this is largely discounted. I personally don’t think it is worth using. Proper nutrients provide all the plants needs.
I don’t do organic soils, so perhaps someone who does can weigh in. @garrigan62 do you have any thoughts on the use of molasses?

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Im with @Reticence here. The opinion i have developed about molasses is it has no purpose in a salt grow. I can see why one might use or need it in an organic and living soil.

Are you using cane or beet?

I use it only to feed the mico’s and or bacteria in my tea Molasses is for them not the plant.

B Safe


Hey everyone sorry for long time between reply.

I have an organic soil grow going and don’t feed the plant as such but more the fungi and bacteria that then feeds on amendments and plants root excretion to then feed plant, to the best of my basic understanding.

I was curious if it was worthwhile from an experimental point of view to play around with sulphured molasses, will try the bicarb and see from there. Not sure if it works with micro life but will find out.

Use unsulphured BS Molasses

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@NreeG. I use molasses in every other watering and grow organically. Check this site out

I use this amended into my soil, as a foliar spray, top dressing, and compost teas. It’s insect frass and is 2-2-2. It is not cheap but a little goes a long way, but obviously can be expensive in a large grow. The healthy root growth I achieve with this is phenomenal and the health it adds to the soil is amazing. I won’t grow without it again.

Whats you molasses ratio?

1.5 tablespoons per gallon. Make sure its unsulphered😎


Molasses has all sorts of benefits in soil grows. It is used in nearly every compost tea recipe in organic grows. It has Calcium, magnesium, tons of potassium…I don’t grow with out it. Also carbs which plants love. Many nutrient companies have things like carbo load and molasses does that naturally. I believe in soil grows and living systems and molasses plays an intricate role.

Blackstrap molasses has undergone multiple boiling and extraction processes, so that it has the highest concentration of vitamins, micro and macro elements. It is very rich in calcium, iron, magnesium, potassium and other valuable elements.

Molasses isn’t just rich in valuable nutrients, but it also has the ability to improve the soil, the very foundation of your grow. In addition to that, it provides many other benefits for healthy plant growth. It helps prevent common problems when growing cannabis, for example by minimising the risk for salt build up. It even doubles as an insect repellent.

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In my opinion there is no cannabis that can touch organic either living or supersoil cannabis in taste, clarity of stone and aroma.


I grow using a living soil. I agree with the taste, smell and potentcy. I guess you can add clarity to the list but that’s more strain related IMO.

I don’t use molasses but when I add microbes/mycorrhizae fungi there is some simple sugar to feed good critters.

I also find that sulfur is a vital part to the smell and taste of your buds. I started using langbeinite for added potassium. It also has a good amount of sulfur and magnesium. I stumbled on this without intention. I’ll continue the use because my bud is always stanky, good tasting and potent.


Newbie here and I can verify that using just a teaspoon per gallon of BS Molasses (unsulfured) with organic soil will show significant positive results. Especially in color.