I do not know if it is good for health or not. I am not also that interested in knowing it. It take just few minutes to warm Pizza if it is already  cold. I think such things are done to create more views than something he will continuing using it to warm Pizza.

Radiations are generally used to make food clean from microorganisms. Processes sealed foods undergo radiation which kills the microorganisms in them so the sealed food can last longer. Even Microwave use radiation to warm food.

The microwaves do use an electromagnetic radiation but it non ionizing radiation, it not same type of radiation that is used to irradiate food for killing microorganisms. For that of miner here I do think the bigger concern is how the food is heated and hygiene.

This mining equipment can have dirt and dust around it and it’s heat may not warm up the pizza evenly, so even with the heat itself not being dangerous …… using a microwave, air fryer or even oven is still much more better way to warm up food.

The heat generated from Asic miner is not toxic to environment but what I fear is the conspiracy theories the public might want to draw to this news. If people can believe last year that 5G network was harmful to the body, don't be surprised if people spread informations that his delivered pizza caused some harm to people, this is what I fear the most. That said.

From the OP link provided to the source, he seems to he using car to make delivery and it's the same car that powers the Asic miner using 12 volt from the car and the Asic miner has a cooling fan that maintain the temperature to 40 degree. This doesn't even provide large amount of heat, that's small difference above the human temperature, at least useful for customers than eating a cold pizza.

The high chance of him finding a block is even low, this might just be a Bitcoin enthusiast who found time doing what he loves and as well as minimize cost of electricity to try his luck to get the block reward.

Do you have proof it's not or you're just saying it based on opinion? I feel it works cause you don't just design something like that just for aesthetics. Yeah, miners and coders are alike; they rarely have time to do anything else and it saves them the time to stand and go to the microwave. It's saving time and stomach in one stretch. Double genius. So what if he had to borrow a leaf from the legendary pizza story and create something good of  his own?

The idea is pretty funny, but I’d be more concerned about the food safety side than the mining. If the heat is properly controlled and the pizza is kept at a safe temperature, then I guess the ASIC gets to do double duty. 😄

No doubt, this will become a story to discuss for a few days before people move on and forget about it. Initially I was not remotely interested in whether the story was real as it seemed to be an attention-seeking exercise. The fact it related to "pizza" was enough to link it to the obvious historical event.

Keeping that aside (as far as practicality is concerned), is the miner even worth carrying around for what income it might generate?

This is really something creative and funny that I read today, haha. Creative in a way because that guy has a very unique way of thinking. Because he does his pizza delivery job, he is also doing mining side by side at the same time, and by combining both jobs, he made a unique bag which can do both tasks of mining and keeping his customers' food hot, haha. And, if I have to share my point of view on your 'but ' concern, then I think it is not directly unhealthy to keep store food using a mining device head.

But storing food stored in the same bag for the long term can really be an unhealthy thing. At the same time, if you think about it, delivery guys don't really need to store food in their bags for a long time frame. They try their best to deliver their order as soon as possible to get positive feedback or a tip from customers. What do you think about this? This is my point of view. CMIIW!