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> I bought a tamari sauce, whose composition is :
> water, whole soya beans, koji (soya, A. oryzae), sea salt.
>
> But  I don't know what 'koji (soya, A. oryzae)¬'  is.
 
Koji is the "active culture" used to ferment the other ingredients
into tamari.  I forget whether A. oryzae is a bacteria or a yeast,
but it's carried from batch to batch like "mother of vinegar".  If
the tamari doesn't list wheat or barley, I'd be very surprised if
the koji wasn't GF.
 
Andrea Frankel, [log in to unmask]  (note new address!)   (916) 274-1921
Snail: Flying Dog Ranch, 11864 Deer Park Dr., Nevada City, CA 95959-8921
"...wake now! discover that YOU are the song that the morning brings..."