The problem with modern technology is just how cheap appliances have gotten.
In some parts of the world you still have an office tea lady/cleaner. But even if you don’t have her anymore (it is about 70% of the time a ‘her’), you can still invest in a dishwasher and a microwave at very little cost.
So practically every place I have worked at has had some form of kitchen(ette).
In my last office this was taken to ridiculous heights because they were located in this huge old country house. This meant that in addition to two tiny microwave/sink points, they had a full kitchen downstairs.
Some of the guys used to put frozen pizzas into the oven at lunchtime.
This was also partly because the country house was, well, in the country and finding a variety of meals in walking distance was not going to happen.
In my current office we have a number of people with odd dietary requirements.
So called ‘fitness freaks’ on low carb high protein diets exist. They microwave frozen vegetables in their packet to keep up with this diet. When you open them up the entire place smells like old farts and cabbage, broccolli being one of those vegetables that does not steam/boil/microwave well.
Others seem to think microwaving raw fish is a good idea.
Or just buying fish from down the road. Or really strong curry. Or smelly soups.
All of this wouldn’t be so bad if there was a designated seating area you ate this in. A sort of equivalent to those horrible smokers holes where the smoke hovers in the air as they puff frantically away, nicotine sticking to their clothing, the secondary smoke alone bringing about a contact high. The same could be done with a dining area where all smelly foods would hover in the air like a venue where Gordon Ramsey meets a dumpster.
The fact of the matter is a lot of offices do not have allocated seating for eating. So even if you inherit a machine from someone who only ate sandwiches you are likely to discover your keyboard is full of dried crumbs.
But there is the unhygenic-ness of a scattering of old bread and then there is the plain rudeness of foods that noone should eat never mind smell polluting public air.