I went to rinse and block my small twined cotton bag and was a little shocked when it held water. It wasn’t completely water tight, there was a slow drip, but it didn’t absorb water like I expect cotton to do. My hypothesis is that because I hadn’t washed it at all to this point, there may be some natural water resistance on cotton bolls. Not enough to keep the harvest safe from rain (as this cotton farmer describes), but some. Or the twining is tight enough and thick enough to resist the water for a short time.

I’ll file this under “things that make me go hm.“