107
Sand is the second-most used resource after water
(files.catbox.moe)
Sources: Elhacham et al. (2020), Hackney et al. (2021), UNEP (2022)
using volumes for dry powders is unacceptable
It’s okayish if they’re really dry.
But for small amounts, particle size and container shape can have an effect, no?
Container shape is important for small amounts and error from particle size scales linearly with the amount.
If we’re talking cooking flours, particle size tends to be somewhat uniform, and container shape don’t make much of a difference, humidity being the heavy hitter when it comes to density variation.