In the second series of experiments, entire clusters
of grapes were harvested, treated, dried, and stored in
ventilated polyethylene (VPE) bags containing about
800–1000 g of grapes each. The clusters were placed
on metal racks as a single layer (out of VPE bags)
and inoculated as described previously. A volume of
100 ml of inoculum was sprayed on to 40 kg clusters.
Inoculated clusters were immersed for 30 s in 10 and
20% (v/v) ethanol solutions alone or in combination
with 0.5 and 1.0% (w/v) potassium sorbate. The fruit
were immersed in the solutions while contained within
the VPE bags. A volume of 5 l of each solution was
used to immerse 4 kg fruit. After treatment, the fruit
were removed from the bags, air dried for about 1