In this post, Julie asks: Speaking of difficulty weighing things, I'd love for you to cover this....Feather-light ingredients. I can't figure out how to weigh my Silk Peptide. I don't see how it could be by weight since it is so light. At 3% in a recipe I needed 5 grams of it. When I weighed it on my scale it filled an entire ounce measuring cup, which didn't seem right to me. I contacted the supplier to ask about it, and they weren't really sure how to weigh it. They just told me 5 grams would be equivalent to .18oz. So I ended up using 1 teaspoon (.18oz x 6 tsp in an ounce = 1.08tsp) since that seemed much more like 3% in a 6oz recipe. I'd love to hear your thoughts on how to weigh ingredients like Silk Peptide that are super light. I can't think of any others off the top of my head, but I'm sure there are plenty of others. Thanks!
I have that trouble with Natrabath - the stuff weighs so little, and I end up with a quarter cup for 10 grams or so! - but I weigh it like my other ingredients. If you have trouble measuring things, put your jug on the scale and count up from that number. For instance, if I put my 2 cup Pyrex jug on the scale, it'll be about 670 grams. Start there. If I want 5 grams, I'd just count to 675 grams and be done with it! I rarely start at 0 when I have small amounts to weigh.
specific gravity. If you are using 1 tsp or 5 ml of silk in your product, you're assuming that it has the same volume as it does weight. This is highly unlikely. If you were using sunflower oil, adding 1 ml means you're adding 0.9 grams as the specific gravity of this oil is 0.9. Some things are lower than one, some are higher than one, but very few things are 1:1 for volume and weight.
As an aside, 1.08 ounce is 5 grams, but that doesn't mean that it is 1.08 ounces in volume. This gets confusing for me because we use millilitres and grams, which are clearly different words for different things, whereas Americans use ounces for volume and weight and don't often specify which they are using. Cooking shows can get very annoying very quickly for me! I like the way Alton Brown started saying "by weight" after the word ounces! But then again, I like everything about that man!
Any other suggestions?