I think it just might be because the seal around the glass would inevitably fail from constant thermal expansion during normal use, thus leaking all over the damn place.
Ovens don’t have a bunch of high pressure water sprayers in them. They just leak hot air at worst.
‘Just hot air’ is a bit of an understatement. Mine goes to 500°C during a cleaning cycle. It physically locks the door so you can’t open it when it does this. My dishwasher I can open at any time.
Watching food cook is appetizing and also a necessity to know when it is done. Watching the slurry of fat, food rests and soap is not.
To check the progress before electric displays and fancy indicator lights. Windows came before those upgrades when machines were still dial controlled.
But they still have windows. Plus I think old fashioned top loading ones didn’t actually.
What are you doing with your clothes? Mine are rarely covered with fat, grease or food.
It’s useful to see the others, not sure how useful it would be to see inside a dishwasher. Could be fun though. Also probably is cheaper not to have it and could be better insulation.
Same reason fridges probably don’t have windows even though that’d actually be handy. I once saw someone post about how their really expensive fridge actually has a window, but their mom put a curtain in front of it because seeing inside the fridge looked “messy”. What a travesty
Only side loading ones. You don’t need a window for top loading ones and none have it.
If you open a front-load washer in the middle of its wash cycle, it would dump 5–10 gallons (editors note: however much that is) of dirty, soapy water all over the floor. That’s bad - so the manufacturer designs a window so that you can see that the machine is empty of water before opening the door.
I guess it’s for that reason. Dishwashers could have similar problems but they might have a lot less water in them at one time and with the type of doors they have you might not dump as much on the floor or something.
Dishwashers don’t fill up - they just have a well at the bottom (below the height of the door) and they spray water over the dishes to rinse of the dirt.
Washing machines need to fill up and soak the clothes so that they get everywhere, not just the outer layer.
My dishwasher can be opened at any time. The sprays stop instantly and the small amount of water can just sit there
My front loading washer also has a small amount of water that seems like it would just sit there if I could open the door. However the door is locked whenever it is spinning
Front loading washing machine doors are automatically locked during the wash cycle.
They often have an emergency release mechanism (pull string behind a cover or similar)
Yes, but connecting to your statement, is it useful to see inside?
Btw, why do they have one?
Edit: Kusimulkku answered that nicely.
Not in full swing but generally this shows you whats happening
Saw this post, instantly thought “Technology Connections”, am not disappointed by the comments here.
