The BLOW usually follows after the PUSH step within the FLUIVAC process. For the BLOW step, air is used from the area where FLUIVAC is positioned. This air is compressed and pumped through a built-in compressor. After the PUSH step, a large part of the product is displaced. However, there will always be product left in the production line. This product can often be found on the walls of the piping and in the difficult to reach points at fittings (pasteurisers, coolers, pumps, etc.).
During the BLOW step, the sucked air from the environment is compressed and pumped through the production line. With high air speeds, the remaining product is blown off the pipe surface. The product recovered after the BLOW step is often considered as usable in practice. After the BLOW step an average of 90 to 98% (usable) product has been displaced.