What an interesting question! Yes, cups, and bowls too, can flip
over in the dishwasher. I have cups and bowls turn over quite often
in my new dishwasher, but it never happened before. Not long ago, I
realized why. My new Bosch dishwasher has a powerful arm that cleans
the top rack, while my old builder?s standard did not! The water force
from the upper arm is powerful enough to flip cups and bowls over!
Worse, there is even grit (macerated food I suppose) inside the cup or
bowl, under the water, requiring more than a rinse for me. While it
has not happened to me on the bottom rack, feasibly, it could happen
if the dishwasher has a strong force of water.
I was surprised not to find more mention of this ?phenomenon?,
since it happens to me, and you! I would guess it is just not of
enough importance to most people to document!
Here is what I was able to find:
?The dishwasher is a great invention, and if properly loaded, can save
energy, sanitize dishes and clean better than hand washing. But, cups
often flip over, filling with water and soaking the dry dishes when
the dishwasher is opened. And you have to be a jig saw puzzle expert
to fill the washer so each dish can be exposed to the sprayer. How can
a better dishwasher be designed? Use compressed air to empty
water-ladened cups? Hold the plates in netting??
?Likewise, if measuring cup flips over and fills during the wash,
bumping it or turning it over won't splash all over the dishes on the
lower rack because there is no lower rack!?
?Those racks hold the cups and glasses in place, so they don?t flip
over (this used to happen often with my old dishwasher). This is
called the cup-clip in the owner?s manual. There is also a "Vari-Lock
Snugger" which secures lighter items into place. "Folding Tines"
located in the front right corner help for larger items such as pots
or bowls. A "Stack Rack" comes in very handy for holding larger
utensils such as large knives, spatulas or ladles.?
?I have a model that has 2 sure-clip holders on the upper rack which
are great for holding lightweight plastic cups so they don't turn over
during the wash.?
?In the top section of our dishwasher we were having trouble with the
plastic bowls turning right side up and filling with dish water. We
found a worn out nylon rope hammock, cut down and bound the edges with
machine or hand stitch. Then placed "S" hooks to hold the sides and
placed it on top of the dishes in the top rack with the hooks on the
side of the upper rack. it lets the water come through and prevents
the plastic bowls from tipping right side up!?
?The Vari-Lock Snugger on the left side secures lightweight items in
place. This keeps those plastic cups from flipping upside down and
filling with water!?
?For unloading, let him hand you the dishes while you dry and put
away. If any cups turned over during the cycle, let your child empty
them into the sink.?
Many people must have this cup-flipping problem, as there are devices
invented to prevent it!
?Keeps cups in rack and safe with cup hugger. Designed to fit on your
dishwasher top rack.?
I hope this has been useful to you. If anything is unclear, please ask
for an Answer Clarification, and allow me to respond, before rating
this answer. I?ll be glad to assist you further on this question, if
possible, before you rate.
dishwasher + cups + flip over
dishwasher + cups + turn over
cups full of water + dishwasher
bowls + upside down + dishwasher
properly loading dishwasher
cups + upside down + dishwasher