Hi! I spoke to Yannick from Fermenthings today and he told me that apparently (didn’t try himself) by placing a typical aquarium air filter in your bacterial cellulose growing basin, air is injected into the liquid and the yield increases quite quickly! what would grow in months would grow in weeks. Don’t know if this was maybe already known?
I did not try myself, but it seems to be true and worth experimenting. https://www.ncbi.nlm.nih.gov/pubmed/11525613
I hacked the growth time through feeding scoby on coffee instead of tea.
I also read that for higher BC yields literature does actually refer to agitated cultures with aeration! I read it here for example: https://www.jstage.jst.go.jp/article/bbb1992/61/2/61_2_219/_article/-char/ja/, but it is mentioned quite often. specialized literature actually often deals with agitated instead of static cultures for what I’ve been reading. I don’t know what the physical result of such an agitated culture is, if you get like a slurry cellulose mixture that you can dry? I’ve recently successfully mixed up BC, spread it out and let to dry. It does recreate a continuous sheet material! This week I’m performing tensile tests on it. This means that you could spread out this slurry BC and dry it in the shape you want
You know when you are making a composite for a more durable leather you do not really need an aligned sheet. You will be looking for the quantity in time. I did not read the article yet. I will If you send me pictures I have sometime by the end of the week to experiment.