When choosing the correct crate washer: be aware of the type and degree of soiling of the crates

Types of soiling

The ratio in which the variables of the Sinner Circle should be used depends upon, among other things, the type of soiling on the crates:

• Pollution 1: Proteins 

  Proteins must be removed at low temperatures (30 to 40 degrees Celsius). If the temperature is too high, the proteins will coagulate.

• Pollution 2: Blood residues 

  This soiling can be removed at low temperatures because they contain proteins.
  (30 to 40 degrees Celsius)

• Pollution 3: Fats 

  Are best to removed with a high water temperature (50 to 65 degrees Celsius).

• Pollution 4: Sticker and glue residues 

  Stickers and glue can be removed using high pressure and with a high temperature. A separate sticker removal module integrated into the crate washer is available for this. 

• Pollution 5: Dried-in dirt

  Has the crate been in a freezer for a long time or standing in the sun? Then the dirt will have dried up ‘To properly clean such crates, sufficient soaking time is required.

An example of a cleaning process would be: when a crate is soiled with proteins and fats, the proteins have to be removed first, at a low temperature. Subsequently the fats can be removed in the second phase, by means of a high temperature wash.

Choice of one or two tanks

You can choose a crate washer with one or two water tanks. In the example above, a two-tank washer would be necessary, because two different water temperatures are used. The two different types of soiling must both be removed by a different washing process.

Also the degree of soiling – low, medium or high – also plays a role in the choice between a one or two-tank crate washer. When there is a high level of soiling and with dried-in dirt, a soaking period is necessary. The washing process is then divided into a pre-wash (tank 1) and a main-wash (tank 2). When there is only one type of soiling, and it is only light then a one-tank washer is often sufficient.