GE PDT750 Takes John's (combo52) Peanut Butter Test

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Mark - It's for the early Hobart-KitchenAids that only had one wash arm in the whole machine, no tower or upper arm at all. They had enough power to blast the paint off a car door, but they were sensitive to proper loading habits, because if there were any pots or large bowls on the lower rack, the spray would be blocked to that section of the upper, so they were designed so that only plates and thin pans should be put in the lower rack.
 
Mark, again lol - I'm surprised you had any pb leftover at all!! With the way the upper arm is positioned and the angle of the jet at the end, it shouldn't have had any problem at all getting water up into the corner. I do think using the Heavy or JetClean cycle would have giving spotless results though. And you should try the Normal for S&G sometime, it's all I really used when I had the Maytag installed and never pulled out a dirty dish, even when they were filthy with dried goop everywhere.
 
The Great PB Challenge

Here is my Point Voyager KitchenAid gearing up for its moment...not the fullest load I've ever put through it but there is a large pot under the corner where the glass is so we shall she how well that upper wash arm works. The glass did sit out on the counter overnight as well.

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The usual cycle I use is auto or sensor cycle--the one that uses the soil sensor.  When I tried this earlier the glasses were included with other heavily soiled items and it was a large load so I decided to try this again with a smaller moderately soiled load - nothing else burned or stuck on and no pasta or greasy items.  I only used 1 glass and placed it over the larger plates in the bottom rack. After I put the PB inside the glass I smeared it all around.

 

I used the same detergent, Finish Quantum Max shine.  Incoming water temp for the main wash was 102F.

 

 

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So close..but so far...

There was still a small glob on the inside edge toward the bottom. Next load I'll have to see if the Reverse Rack can do any better!

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Hmmmm ...

 
I didn't have any peanut butter so I did the test with Nutella (a bit past its prime), left to dry in the glasses for 24 hrs.  Is that legitimate?  One glass at the front/left corner, another beside it.  Normal cycle, Cascade Institutional detergent (bleach & phosphates, no enzymes).  What do you all expect for the results?  Will post the pics tomorrow.  (I bought a jar of peanut butter today but am hesitant to waste it ... *love* peanut butter, jar and a spoon!)
 
Gave it a go

in the KitchenAid----with a twist. Chunky peanut butter, and added coffee grounds to 1 glass. Overnight to dry on. Normal--Hi-temp & heat dry. Cascade Complete pac, 6 gpg & 125F incoming hot water. Last pic shows the sump, soil sensor & residual water level.

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PB is probably in my top 3 favorite foods and despite it's price coming down last year, it killed me to smear it into a glass and let it go down the drain. Lol. I still have three more dishwashers to "test" so I may have to buy a jar of store brand and save the Jif!

We had one posting with and F&P but not the Normal cycle, but remembering some of the pics you've posted with challenging loads, I'm guessing the Nutella test was a success. But then again, that Cascade with bleach has let me down a few times so...
 
Haha those are funny - "Moisten" LOL

Anyway - I hated wasting the peanut butter too!

@ Andrew - when/if you read this -

What does tough scrub do? I know you have a Maytag similar to mine, so I thought you may know. Additionally, did you ever use the quick wash cycle on your Maytag and if so, was it any good and how long was it?
 
 
I suppose I goofed the test by placing the glasses in the main rack instead of on the side shelf but the glasses I used are too tall to fit on the shelves.  The glass at the corner is at the extreme range of the arm's reach.  A smaller item, such as a juice glass, probably would have failed in that position due to the smaller diameter.

I purged the line before starting but the input flow was less than 105°F/40°C.  The Normal cycle heats the main wash to 140°F/60°C and the final rinse to 150°F/65.5°C.

The load wasn't as 'stuffed'-full as I usually run.

The 2nd picture looks like peanut butter but it is Nutella.  The camera's interpretation of the color is slightly off-kilter

A few more items were added after the 3rd and 4th "before" pics were taken so the one glass is slightly moved in the 5th "after" picture.

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@dadoes

I'm glad you had far better results than I - although you did the right thing and used a "Normal" cycle that actually is a normal cycle.

Will be repeating the test in a couple of days, and will post results.
 
Today I ran the test, in several forms, in the Maytag reverse-rack. This is the first of the belt-drive pump, WU601.

If loaded in the corners of the lower rack, the machine does what it's supposed to do admirably, even scrubbed off the smudge of PB left from the KitchenAid test. I gave it an additional challenge just for fun. I expected middling results at best, but the end result was a tumbler that looked like it had been in the "Moisten" cycle on Nate's GE. The 24 ounce Tervis tumbler with the schmear is in the right corner of the top rack. The glass loaded on the right of lower rack is the smudge-fail from the KA.

I used Cascade Complete powder mixed with STPP, as before.

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Gansky1....

I guess great minds think alike...I was going to do exactly what you did with my Reverse Rack and do a glass in both the upper and lower rack. Well it just wouldn't be any fun if I still didn't do the test next load around, I guesss we will find out of there were any improvements with the direct drive pumps.

Cameron
 
Peanut Butter Test # 2 (24 hour dried peanut butter)

this time with the Jetclean/steam cycle. I chose EVERY option, hi temp, tough scrub, steam sanitize and I think this cycle uses a TON of water. When I opened it more steam came out that I have ever seen in my life from a dishwasher. The cycle ran over 3 hours! Before when I ran the jetclean steam cycle, I had not chosen steam sanitize, but this time I did.....there wasn't a trace of peanut butter anywhere, the glass smelled clean and no peanut butter smell in the dishwasher.

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Just think of all the water, energy, time, and wear and tear on the machine (running for 3 hours) to get some peanut butter out of a glass. I just pray my old non-HE dishwasher last forever.
 
Actually, time is the only factor that comes into play. New dishwashers have such tiny pumps / motors and use so little water (usually only 3-4.5 gallons) that the 3-hour cycle still uses substantially less energy and water than a vintage machine.

I often use the Light (49 min.) or even Express (30 min.) cycles on lightly soiled loads. But on the Normal or Heavy cycles, time is where new dishwashers can't compete with speedy vintage machines.

Mark-- Success! Using the JetClean cycle was probably the key to better results. Steam Sanitize: Did you notice if the machine stopped and just steamed for awhile? My LG used to do that when the Steam option was engaged. The GE pauses and just runs the four bottle wash jets when the Bottle Wash option is selected, which is probably why the cycle is lengthened by about 20 minutes.
 
TWELVE GALLONS? Most new machines use .75 to 1.25 gallons of water per fill, made possible by alternating the spray between racks. That would mean 10+ changes of water. My new Maytag washer uses about 10 gallons to wash an average load of clothes!
 
Actually, Mark's Maytag, while basically new, wouldn't be technically considered an HE dishwasher, because it's of the Voyager build, just with improvements to cycle management that help it use less water and energy than the older Voyagers do, as it was built alongside the new Whirlpool Tahoe/Resource Efficient/"whatever their codename is for it" design. I'm not even sure the new Maytag design could be considered HE, because while it is built on the Tahoe platform, the removable filter is instead an accumulator filter in the same sump area, and the motor is a smaller version of what is in the Voyager, but more powerful than the PM motor in the removable filter version, and there is no diverter valve, so the fill level is about the same as the Voyager, maybe slightly lower.

Mark - Your steam cycle is probably a bit more effective than in my Maytag, since yours is the high end stainless steel model, and the element is set into the sump. In mine, the tub is plastic so the element is raised so my steam option always filled up to that point and would sit, heating the water, and would pulse the motor every now and then. It would then dump all that water and go into the final rinse. It was basically a longer version of normal Sani Rinses.

The new Whirlpool now has the element mounted down against the bottom, so I think it helps a ton with heating water more efficiently, but the water level is also barely outside the border of the sump, so I'm sure that was the main reason for doing that in this case.

Frigilux - These are always my go-to choices for being flabbergasted, haha 😐 😦 😶
 
Yes -

that was a LOT of water/energy to get peanut butter out of a glass. I agree. But it was just a test is all. Since the autoclean was a fail, I needed to know if my dishwasher could "do it" on at least one of its cycles.

I searched and found the old topic back when my other 9.2 yr old dishwasher was drying a horrible death and I posted a video asking what was wrong, then it died just after I posted and continuing onto the new Maytag and install nightmare.

http://www.automaticwasher.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?53926
 
On my maytag, I'd run the auto clean with high temp wash and steam sanitize, no heated dry. That was my default cycle, unless I was using the machine mid-cooking session then it was quick wash. I really didn't use much else.

I should have ran a PB glass through before I took the maytag out.
 
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