For optimum yields, Ive not found a tek better than BLAB for getting a large a yield as possible.This is essentially a STB with an acid-soak done first.
I wonder if a few days acid soak might make the fact that ones bark is not powdered or shredded into sufficiently small pieces less of problem by making it more accessible by the acids effects on the bark.
Im sure the chemistry experts could comment on this.If it is the case then I wonder if an acid stronger than 5% acetic as suggested by the tek would be more effective on shredded bark.
Having said that, if you soak it even in 5% acetic acid for a week with regular shaking, I think this can only help.Yields of of 2% are not uncommon with a slower than suggested BLAB tek.Hoever, this is on powdered material.
Lastly I wonder if the fibres on home shredded MHRB might be worth working on separately from the powder; I plan to try this next time and show it no mercy by using 16% HCl and basifiying with excssive lye.It would be good to know how rich in content these fibres actually are.
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