Earlier quoted context omitted.
I live in the UK too... it's not that unusual to buy unrefigerated eggs with a use-by date of a month hence. You can leave them out, then hard boil them on that date, and they'll keep in the fridge for at least another week. I've always ended up eating them by that point though. (I generally buy duck eggs rather than chicken eggs, though. Don't know if they last longer.) FUN FACT: a couple of years ago I saw a Twitte…
As a side note on boiling eggs: older eggs are sometimes preferred for boiling because they're easier to peel, but if you're working with fresh eggs consider steaming them instead. Get the pan or steamer up to temperature, add eggs with a slotted spoon, cover, steam ~12 minutes, transfer to an ice bath to chill at least 5 minutes, peel. For extra large or jumbo eggs, probably add a minute. Adjust to taste for future…
Just put them in a pot, not large, with enough water to cover the eggs and no more. Cold water. Add heat, high, and heat to boil for no more than a minute. Remove and put in cool/running water. Results in non-plastic whites and soft yolks.
Though, I prefer poached or scrambled. For boiled, quail eggs are great (and, where I live, also cheaper).