Refer to an old formulary. Druggists used to make all their own extracts =
for drugs and flavoring.
Usually the procedure involved maceration ( soaking ), followed by =
percolation. Off-hand
I'd say you are using too much and too weak an alcohol and not soaking it=
long enough. Extract with
a minimal of solvent, repeat until you exhaust the vanilla. Combine and =
dilute to your desired
level.


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GreggS - The sky is my canvas, fire is my palette.