Re: boron toxicity

I have a scale that weighs down to a gram, but no finer. I weighed 4 tablespoons of grocery-store borax, and got 38 grams. Going from that, a level tablespoon would weigh about 9500 mg, a level teaspoon would weigh about 3167 mg, a level one-quarter teaspoon would weigh about 792 mg, and a level one-eighth teaspoon would weigh about 396 mg. We can't recommend ingesting grocery-store borax, because sometimes people can respond negatively to the impurities present.