Wrapped Lievto Madre's linen wrap is very wet.
I keep my lievto madre wrapped and tied up in a linen wrap; and then in a plastic ziplock bag. I refresh it about every 4 days. 100 gram lievto madre, 100 gram filtered water and 200 gram bread flour (Guisto bread flour). She's kept in the refrigerator.
Lastly, I noticed that the linen wrap is very wet. And, when I unwrap the lievito madre to refresh it, there's no crust on the outside. The lievito madre is very light, airy and filled with air bubbles.
What am I doing wrong? Please advise.