Sampling
To evaluate the lot selected for inspection, take a sample of at least 10 fruits of each size at random
from the reduced sample. In case of small fruits packed in sales packages (e.g. strawberries, cherries) take
10 sales packages and at least five fruits of each package or 10 primary samples if fruits are packed in bulk
in the package.
However, fruits should be free from defects such as sun scorch and pest or disease damage, which
may have affected the normal ripening process.
Sample preparation
It is important that the juice sample used for measuring soluble solids is extracted in a uniform way
and to take into account natural differences in the distribution of soluble solids within the fruit for the
species concerned.
Although it is not possible to lay down precise guidelines for all produce which could be tested. The
overriding criteria is that the juice sample must be as far as possible representative of the whole fruit. Dry
fruit should be used, as any external moisture mixing with the juice will lower the reading.
Where specific methods for sample preparation or juice extraction are given in marketing standards or
OECD brochures, it should be followed. In absence of such guidelines, sample preparation and the juice
extraction should be done in following way