Store paper in a humid environment As a hobby, I'm starting to do calligraphy. I've bought some paper online a few weeks ago (a Rhodia paper block). Today, I found out that when the block lays on a flat surface, I see two or three small &quot;waves&quot; in the paper which seem they are caused by humidity (you know when you wet a sheet of paper and where it is wet it shows some &quot;waves&quot;, well, they are similar, but extended through the whole page and not as tall). If I detach a sheet from the block it shows the very same small waves (it's not completely flat).
I also own some other blocks, and I see the same problem (although much less noticeable) in all of them.
I live in a naturally humid environment, that's why my first suspect for this is humidity.
Is there a way to store paper in such a way that avoids this strange effect? Moreover, is there a way to make the block return flat?
Thanks in advance
You can make sure an equal pressure is applied to the individual papers or blocks while being stored by laying a heavy and flat object like a book or a similar item on top of them. Even if the humidity would otherwise warp the paper, there is no room for that now.
You can try storing your currently warped paper blocks like this for a while, but I doubt they will become completely flush again (they would need moisture so the fibres can expand, and then shrink while the pressure is applied, but the moisture would need a way to evaporate relatively quick or the paper might end up mouldy).
See also the first half of this answer for more information on storing paper.
The already wrinkled or waved paper can be straightened by moistening it and sticking it to a wooden board using water activated tape (see also the second part of this answer). After drying, you can either cut the paper out of the tape borders before using it, or write on it first, so the ink can dry completely without it warping the paper either.