This was unexpected, but is just waiting for a commercial application. You have to watch the video to believe it, but this restaurant** in Japan has a goldfish tank…in the deep fryer.
Because oil floats on water, despite the massive heat (163 degrees Celsius) the goldfish simply stay away from the surface and all is well. They eat the crumbs of croquettes and other fried foods that fall to the bottom, and can live in there for 5-10 years** as they happily clean away, ignorant to the fact that certain death awaits any potential escapees.
This one is hidden away back in the kitchen where customers can’t even see it, but it could easily be made for display near the dining area for everyone to see. No word on whether they turn cannibal and devour their battered bretheren when they’re chucked in along with some potatoes.
Of course, some people like aquariums for ambiance, rather than deep-frying. I wouldn’t fry these though.
**Update** Just a little clarification on this. This fryer (from the WaterFryer company) is specially designed to allow the water inside without blowing up (sugei!). The location is not clear, however. As one commenter noted somewhere, it took the guy 10 years to create it. As for how long the fish can live in there, I was lazy in my translation and made a mistake. I suppose they could live in there anywhere from ten years to 10 seconds, depending on how foolish they are.
Via The Best of Toretama
Photo credit here
Michael is founder and director of the 
I just love the whole lack of necessity for this invention. There are so many easier ways to make commercial deep fat fryers cleaner, but this is the most entertaining and quirky by far! Go Japan!
ok, so 1 of the japanese ppl who posted here said he could translate, he said the water is added and sinks before it can explode. now my question is, how do you get the fish down there?i think that the way is added first.then hot oil. now it makes sense, and because the water is BELOW the heating coil and *heat rises* the water should not heat up too much. the only other thing that also confuses me is how the fish gets air.
It is interesting. Never thought of it.
Is not possible !
Is not possible thanks
It is the very good article.
This isn’t a self-cleaning deep frier. It’s a self cleaning aquarium
Wow. This adds a whole layer of possibilities on how to decorate our kitchen
IS this real ??
wow thats sceery
This is genius! Disgusting, but genius.
This article is WRONG —- This is NOT product with fish tank, the water in the tank used for oil filtration. Goldfish is used for demonstration how the water cool under the oil. NO restaurant put goldfish in when they use the fryer.
Actually the dish will still remain hygienic because the extremely hot oil will kill any nasty bacteria.
Like anybody with aquariums would know that fish droppings would sink at the bottom of the aquarium besides the poo is saturated with water and as a result will always remain beneath the oil.
it is really unexpected
Now, if someone could just find a way to make this into a product to sell, that would be amazing.
That’s so horrible! How do they clean the tank? Wouldn’t that mean goldfish shit is inches away from your food? That fish will not live ten years, I promise you. The food that falls down to the bottom will rot and kill the fish. So will the oil mixing with the water. The things people do to fish really make me mad! They’re animals too! I love my pet fish and I don’t see them as disposable or a novelty.
woooooooooooooooooooooooooooooow
wow…very weird..
Hell this people are stupid! i doubt this fish will live 10 years the ammonia will easily kill the fish as the food that is dropped will rot and will result to ammonia and also the droppings!
wooooooooooooooooooooooow
This is genius! Disgusting, but genius.
The food that falls down to the bottom will rot and kill the fish. So will the oil mixing with the water. The things people do to fish really make me mad! They’re animals too! I love my pet fish and I don’t see them as disposable or a novelty.
this is ridiculous. any food that the fish eat will come back out as feces anyway.
Look people. Stop getting bent out of shape. This was only used for a deomnstration. They were useing the fish to demonstrated the automatic cleaning fryer, how they had made it so that water and things could be put in, accidently or not, and not explode like normal. THE FISH WERE JUST ATTENTION GETTERS! They were not using that fryer, with the fish in it, for more than the demo. When restruants use this fryer, THEY DONT PUT GOLDFISH IN IT!
Thank you for unshared.
wow …Disgusting
Google Translate Thanks You
wooooow ….
Maybe they should work on cleaning the kitchen more thoroughly and forget about the novelty fish tank…
this is ridiculous. any food that the fish eat will come back out as feces anyway.