three Causes You Ought to Skip the Dishwasher and Wash by Hand

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Would you like your dishes to sparkle? Send your dishwasher to the pasture.

As it turns out, using a “two-bowl method” to make dishes by hand is cleaner and more environmentally friendly than a dishwasher. This comes from a study by the University of Michigan.

Originally published last year, the study found that the “clean values” for dishwashers were between 83 and 90. In contrast, the clean value for hand washing using best practices is 95. The practices are defined as soaking and scrubbing dishes in a basin of hot water, rinsing them in a basin with cold water, and air drying.

A second reason for using the hand washing method is that it significantly reduces greenhouse gas emissions, which are primarily related to the energy used to heat the water, according to the University of Michigan.

Recently, consumer reports took up the University of Michigan study and reported that the results are in line with CR’s own theory about washing dishes. Larry Ciufo, who is responsible for inspecting dishwashers at CR, suggests the following hand washing process:

  • Scrape off leftover food.
  • With a two-bowl sink, fill a bowl with hot water and a few dashes of dish soap. Fill the other basin with cold water. Use a plastic tub or bucket as a second basin if necessary.
  • Soak dirty dishes in hot water before scrubbing with a sponge. Start with the least dirty items first and keep the knives out of the water. For safety reasons, wash them one by one.
  • Remove the foam by submerging the item in clean water. Place clean dishes in a drying rack with enough space for air to circulate. Wiping glassware and metal can prevent staining and rusting.

Proper technique is important when washing dishes by hand. The University of Michigan notes that their tests “show that manual dishwashing has a much greater variability in the range of [clean] The results were achieved while the machines were less variable. “

Additionally, the study’s authors say that washing dishes with the tap running – another example of poor manual washing technique – actually uses more energy and water than any other dishwashing method.

If clean dishes and a healthier planet aren’t reason enough to turn off the dishwasher, consider this third hand washing benefit: A 2015 study published in the journal Pediatrics found that families who wash dishes by hand do less Children have likely been diagnosed with allergic diseases.

The study’s authors speculate that hand washing “may induce tolerance through increased microbial exposure”.

For more information on overlooked cleaning methods, see “17 Surprising Things You Can Clean In A Dishwasher”.

Disclosure: The information you read here is always objective. However, sometimes we get compensation for clicking links in our stories.

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