Molasses

Molasses is not a classic primary fertilizer like a nitrogen, phosphorus, or potassium raw material, but primarily a microbe-oriented input. In Living Soil, it is used because the sugars and carbohydrates it contains feed the soil life and thus support precisely the processes upon which living soil is built. When microorganisms are actively working, organic matter can be broken down more effectively, and nutrients can be made more readily available in the soil cycle. This is precisely why molasses is so frequently used in Living Soil systems, compost teas, and organically managed soils.

Unsulfured blackstrap molasses is usually what people are looking for, and there's a good reason for that: Black molasses from later cooking stages contains relevant minerals such as potassium, calcium, and magnesium, while added sulfur dioxide in sulfured molasses is considered detrimental if you specifically want to promote microbes. For the growing context, molasses is therefore primarily interesting as food for beneficial soil organisms and only secondarily as a small mineral side input.

In practical use, molasses is particularly effective when a biologically active substrate is already present. In living soil, reuse soil, larger pots, beds, and no-till systems, it can really boost microbes. In sterile or very weak substrates, however, molasses provides significantly less benefit because it only works effectively if there is actual soil life present that can react to this food. This is precisely why molasses is more of a booster for active systems than a universal problem solver.

Many users also synonymously search for blackstrap molasses or unsulfured molasses. For your finder, I would clearly set the main entry to molasses and cover the synonyms within the text. From a technical perspective, molasses is therefore primarily a raw material for microbes, soil activity, and the support of biological cycles, but not the central lever for direct primary nutrient supply.