If the container is sealed the relative humidity should be pretty stable. For how long are you storing the jars?
I donāt use bodeva packs but the large flip-top jar Iāve been using holds pretty steady around 60%RH.
15Ā°C/63%RH That jar used to be way more full but the humidity was the same. I suppose ālong-termā storage has never been a problem of mine, but thatās a good problem to have.