How to enumerate the microorganisms in a food sample using Dilucup?

  1. First homogenize the sample if it is solid. This is the first 1/10 dilution.
  2. Once the sample is suspended or if the sample is liquid, serial dilute it using Dilucup.
  3. Plate 1 mL of the selected suspension(s) and incubate.
  4. Count the colonies (the plates should have between 30 and 300 CFUs to get a statistically valid result).
  5. Divide the average number of CFUs per the dilution level to get the number of microorganisms per mL or g in the original sample.

Watch the video to understand it better!

We hope that your egg is filled with chocolates and not with Dilucups like ours! 😉

We wanted to take the opportunity to inform you that our office will be closed on Friday 15th and Monday 18th of April.

Have a nice Easter break!

We have started to distribute proficiency tests in Sweden.

Proficiency testing is a comparison of the quality of analyzes and working methods between laboratories. These types of tests are important for all laboratories that want to evaluate their quality system.

Our tests are mainly for the environment and food sector.

A new version of the Dilugent Shaker user manual is available with the updates included in the last firmware (1.2.6). You must be logged in to access the orange button shown in the picture on this side.

If you want to update your instrument contact your distributor so that they can help you.

As you may know, according to EN ISO 6887-1: 2017 the volume of a diluent should not deviate from 9,0 mL ± 2 %.

99,97 % of all Dilucups analysed during 2020 and 2021 had a volume of 9,0 mL ± 1 %, with an average of 9,0 mL +0,2 %.

Each point on the diagram represents the volume of a manually controlled Dilucup® in the QC laboratory. Values ​​are given as deviation from 9 mL.

There is a new firmware version, number 1.2.5, available for Dilugent® Shaker.
The update is included under the 2-year warranty from the date of purchase.

Book a meeting and update your Dilugent® Shaker firmware remotely!