Chat with us, powered by LiveChat
Courses Available Online, Virtually and Classroom
Fully Certified NEBOSH, IOSH, IEMA Accredited
7-Day Customer Service
Tom Lea BScHons, GradIOSH, AIEMA

What's more Earth Friendly? Dishwasher or Sink?

A new study published in the journal Environmental Research Communications shows that dishwashers still take the prize for efficiency, both in terms of energy and water used. Read all about it!

February 2020

The first commercial dishwasher was invented in 1887, and since then the long-standing green living debate over hand versus dishwasher lives on.

According to the International Energy Agency, 78% of US Households and 49% of UK households now own dishwashers, a statistic which stands at an all-time record high. Interestingly, the research also uncovered that many dishwasher households still wash dishes by hand. Which method is truly earth-friendly?

The Research

A new study published in the journal Environmental Research Communications shows that dishwashers still take the prize for efficiency, both in terms of energy and water used. However, the study revealed that there are better and worse ways of using dishwashers, as well as better and worse ways of washing dishes by hand. The findings are interesting because the task of cleaning dishes is something we do every day. So to be green-living, why not learn the optimal way?

According to an insight article by TreeHuggers on the study, participants were asked first to load and run a dishwasher and then to wash dishes by hand the way they would at home. They answered survey questions afterwards about their dishwashing behaviours. Other participants were then asked to load a dishwasher and wash dishes by hand following best practices. This meant not pre-rinsing dishes before loading in the dishwasher and using the recommended normal cycle with heated dry, rinse-aid, and high-quality detergent. The machines were assumed to be fully loaded, as 93 percent of participants reported being able to do this regularly. For washing dishes, this meant using the two-basin method "where dishes are soaked and scrubbed in hot water, rinsed in cold water, and are air-dried."

The Results are In

When it comes down to the stats, the report estimates the water usage of both methods across 10 years; a dishwasher will use 16,300 gallons of water, whereas washing the same quantity of dishes by hand for ten years will use 34,200 gallons.

The advice from the research states that if we learn from best practice techniques, we could go a long way toward improving our footprint and reduce emissions by 249 per cent. The resulting greenhouse gas emissions from the recommended two-basin method were only 1,610 kg over 10 years. But that's not a whole lot less than a properly-run dishwasher at 2,090 kg, which suggests that using a dishwasher – especially if you're factoring in the cost of your time – really sounds like the way to go.

You can read the full report findings here

We Believe 

Astutis believes that the problems we face on the climate crisis are systemic and that fundamental societal change is needed. We will keep writing educational content on the efforts of individuals and communities around the world who are helping future generations and the preservation of human life on earth by talking about long-standing green issues.

Click the button below to view our full range of IEMA courses!

Related Blogs

  • Reporting from SHW Live 2022 Image
    Toby Howell BA PGDip

    Reporting from SHW Live 2022

    Astutis were incredibly proud to partner with SHW Live 2022 to help industry thought leaders from around the world deliver thought-provoking speeches during the special event. Discover what some had to say here. 
    04.10.22
  • Astutis' Six-Step Approach to Successful Incident Investigations Image
    Toby Howell BA PGDip

    Astutis' Six-Step Approach to Successful Incident Investigations

    Risk assessments and incident investigations are the most efficient way to analyse risk. Astutis' blog explores the six-step approach to investigating workplace incidents, helping organisations and individuals to effectively minimise risk in the workplace.
    12.09.22
  • The Astutis Guide: How to pass the NEBOSH International General Certificate Image
    Toby Howell BA PGDip

    The Astutis Guide: How to pass the NEBOSH International General Certificate

    Read our ultimate guide on passing the NEBOSH International General Certificate to maximise your chance of success! Read more here.
    31.08.22
  • The Real Cost of Health and Safety Image
    Toby Howell BA PGDip

    The Real Cost of Health and Safety

    Uncover society's relationship with Health and Safety and how it may have turned a corner. Discover the human and financial cost of neglecting Health and Safety in a post COVID-19 world. Read more here. 
    25.08.22
  • Talking Rubbish: Britain's Problem with Waste Image
    Toby Howell BA PGDip

    Talking Rubbish: Britain's Problem with Waste

    Discover the current problem Britain has with recycled waste and how it can spiral into a waste crisis. Uncover how Britain could look to escape the problem by looking oversees. Read more now!
    15.08.22
  • Cycle to Work Day 2022: Shifting Gears on Climate Change Image
    Steve Terry

    Cycle to Work Day 2022: Shifting Gears on Climate Change

    Astutis' Managing Director, Steve Terry, takes readers through his personal connection to Cycle to Work Day 2022. Steve also points his forensic lense at the current state of the environment and asks what needs to be done to better the health of Planet Earth. Read more here. 
    04.08.22
Section Curve
Case Studies

Real Life Stories

Find out how learners look back on their training with Astutis. Our case studies give our learners, both individual and corporate, a platform to share their Astutis experience. Discover how training with Astutis has helped past learners and delegates make the world a safer place, one course at a time.
More Image
Bottom Curve
What People Say

Hear What Our Learners Have To Say

We're always there for our customers. 98% of our learners rated their overall experience as good or outstanding. We will always pride ourselves on our customer service. But don’t take our word for it, here is what our customers have to say
  • "Second course I have completed with Astutis, and again cannot fault them in anyway. Brilliant course, easy to understand."

    Andrew
    11.09.2022
  • "Easy to understand, engaging and interesting. Well put together."

    Andrew
    11.09.2022
  • "I'm being promptly serviced. The selection of lecturer and use of IT application are wise. The reference materials are fit for the cases."

    07.09.2022
  • "The selection of training and reference materials are fit for purpose."

    07.09.2022
  • "Good from start to finish"

    Andrew
    07.09.2022
  • "Quality course. Good value."

    Andrew
    07.09.2022
  • "The materials and professionalism of the tutor are top notch. Really absorbed the way how he teaches and considered it very effective."

    Edzel
    07.09.2022
  • "Learned a lot about UK legislation and Governance Principle"

    Edzel
    07.09.2022
  • "Good service and communication"

    Patrick
    07.09.2022
  • "Explained stuff very clearly"

    Patrick
    07.09.2022