It will feel a little rubbery when you take it out. But once it cools it will be hard! Now I rinse off what I coualdnt Shaw off. Keep shake offs for nectar project.
This an interesting idea. There aren't a lot of places in the world where you can't see human impacts. Plenty of glass in the sea. I really like the look of these. A lightly sandblasted blue bottle would look awesome.
Now I actually soaked in really warm water on stove for awhile. Helps dissolve salt then I put in back of toilet tank. I check it every other day by rinseing off and putting my tongue to it. I know, weird! But its clean water and I rinse it off. But if I taste salt faintly, back in it goes. And every time I check its less and less. And more and more holes from dissolving salt. Or just put a bottle in tank and now do all this.
I think is cool. I have a yager nip in mine. U have to think about placement though. I had the bottle leaning on a rock and a hermet crab fell in and could not get out. I found it dead inside. dont know how long it was in there but the water inside was nasty.