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Once
clean, tiger nuts must loose humidity with dry up. During this process,
the humidity lowers from 50% to 11%. This process, which duration
used to be 3 months, it is done in dry up chambers, carefully
and slowly, with the purpose to obtain that tiger nut acquires his
typical characteristics.
During
this operation, tubers are stir continuously, in order that dry
up would be uniform. The tubers are disposed in cloaks of 10-20
cm of thickness, realising two daily stirs, decreasing the frequency
of these according to loosing humidity. Once dried, they are cleaned
and classified, with the aim of separate the tiger nut of impurity,
failed or small tiger nuts. These remains compound the select.
After
that, a complementary manual selection is done, eliminating the
damaged tubers and some impurity that could remain. Reached this
moment, tiger nuts are putted in bags and now they are ready for
the elaboration of tiger nut milk
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