Dont think you can burn your plant with it. I did a grow with one plant getting molasses and one not. The one being fed molasses ended up developing crystaline deposits on the stem. When i noticed this i cut back on the molasses, the 2 plants were harvested. And they were both a decent smoke. I would imagine if you really overdo it, then you could run into problems. But i am sure 1 tbsp per gallon is correct. I started at 1 tbsp per litre, as i had read a post on here and picked it up wrong. Best of luck mate.