Powdered baking ingredients such as flour, semolina, baking powder or starch, as well as ready-made baking mixes, can be precisely colorimetrically determined using a spectrophotometer such as the ColorFlex EZ. In this way, manufacturers guarantee a consistent appearance and create trust in the product.
Powders consist of tiny particles. To ensure uniform colour measurement, a uniform surface should be created. For this purpose, a generous amount of powder is added to a 64 mm round glass cuvette. Sufficient coating thickness minimizes the effects of incident ambient light and guarantees precise measurements. (A layer thickness of 50 mm also makes translucent powder effectively opaque for reflectance measurement).
Before you start measuring, standardize the device with the black and white standard supplied with the device.
Carefully tap the cuvette once briefly on a hard surface so that the powder settles a little and then place it on the aperture so that the powder can be measured through the glass bottom of the cuvette. (Make sure that no powder gets onto the aperture!)
Colour measurement is triggered at the touch of a button and the measured values are shown directly on the display.
Remove the cuvette from the measuring opening, empty and refill it and measure the powder of the same sample quantity at least three times. Then use the software to average a value from the three colour measurements to obtain a representative colour value for the sample. Averaging several measurements reduces the fluctuations in measured values that always occur in connection with non-uniform samples.
Welche Art von Pulver oder Mehl Sie auch messen wollen, mit HunterLab Spektralphotometern garantieren Sie jedem Abnehmer ein optisch gleichbleibendes Erscheinungsbild und unterstreichen damit Ihre Qualitätsstandards. In jedem Fall aber wählen Sie mit HunterLab den Anbieter mit den qualitativ hochwertigsten Spektralphotometern für die Lebensmittelindustrie am Markt.
