I receive a newsletter every once in a while from a company called David's Tea, and I thought we could analyze the recipe they're calling a green tea infused coconut moisturizer* for some fun!

The recipe, which they state has a shelf life of two weeks, is as follows...

2 Perfect Spoonfuls of Japanese Sencha tea
2 cups + 3 tbsp hot water
1 cup organic coconut oil
8 drops eucalyptus or another essential oil (optional)

Please click the link above to see the suggested process to make this as it's just too long. 

The first rule when making products is that we do everything by weight, not volume. It's all about the accuracy, baby! Let's say you wanted to measure that coconut oil. Is it before or after melting" Is it a level cup or just a bit more" When it comes to tinier measurements, like spoons, thick or sticky ingredients may end up coating the container and less ends up in the product. This is a big deal for things like preservatives.
Volume isn't the same as weight. 1 ml of water weighs 1 gram, but 1 ml of oil doesn't weigh 1 gram. You can't just add 1 ml of water and 1 ml of oil and consider you have a 50-50 mix of oil and water.

Related post: How do I figure out volume" (Includes information on specific gravity)

If you aren't convinced yet, measuring by weight means fewer annoying containers to clean up as we just put our jug on the scale and measure everything directly into it! I can make and package a lotion using only two Pyrex jugs, one ...