Soil Removal in Automatic Dishwashing

Peart, Virginia; Johnston, Kathleen A.

doi:10.1177/1077727x7600500206

Cited by 1 publication

(1 citation statement)

References 4 publications

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“…The number of German households that own a dishwasher has risen from 44·1% in 1998 to 71·9% in 2018 (Statistisches Bundesamt ). Dishwashers are efficient in the removal of soil (Peart and Johnston ), bacteria and food particles (Ward and Dack ; Rahman ). Automated dishwashing has been proven to be more efficient than manual dishwashing (Blackmore et al ; Stamminger ; Richter ; Vivian et al ) and consumers would like to use energy‐saving dishwasher cycles, but do not use cycles with durations of more than 2 h regularly (Hook et al ; Stamminger et al ).…”

Section: Introductionmentioning

confidence: 99%

A method to evaluate factors influencing the microbial reduction in domestic dishwashers

et al. 2020

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Aims:To develop a method that is able to determine the microbial reduction in different dishwasher cleaning cycles and differentiate between different program parameters used. Methods and Results: Stainless steel biomonitors were contaminated with Micrococcus luteus or Entereococcus faecium and cleaned in a specially programmed household dishwasher with different cleaning temperatures and durations. No detergent, bleach-free detergent or detergent containing activated oxygen bleach was used. The logarithmic reduction (LR) was determined. The microbial reduction depended on the cleaning temperature, the duration of the cleaning cycles and the detergent type used. LR increased with higher temperatures, longer cleaning cycles and use of detergent. Conclusions: The factors cleaning cycle temperature, cleaning cycle duration, final rinsing temperature and the use of detergent all contributed to the reduction of test-strains in dishwasher cycles. A combination of longer dishwashing cycles and increased temperatures resulted in LR max of the microbial load. Significance and Impact of the Study: Cycles in domestic appliances are very diverse; therefore a standardized method to determine their ability to reduce the microbial load is of great use. The method described here is able to demonstrate the reductions achieved by dishwashing cycles with different parameters and might help to find the necessary balance between energy saving and an acceptable level of hygiene.

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