The purpose of the phase is to dry the product. For this, once the product has been
sterilized or cooled, by making vacuum in chamber is possible to vaporize the steam
condensates that are still in contact with the product.
It makes so many pulses of vacuum as indicated. When it arrives at the required
pressure of vacuum (P8a) begins to count the drying time (t8), soon it increases the
pressure until the selected value (P8b) and it begins to count the drying time again. The
phase ends when all pulses have been done (N8).