This is a tricky question because it has no definite answer. Not only does each model of coffee maker vary in the design and material, but the extent that the user cares for the machine matters a lot in terms of its lifespan. While plastic coffee filters ought to last you some ten years, automatic ones with electric circuits, mesh filters, and pod brewers can only last around 5 years. That’s because the machine has to deal with many heavy-duty tasks at once: brewing the coffee, filtering, dripping, and keeping the coffee warm. Not to mention that this type of coffee machine is often shared among many users, which will exhaust its lifetime even faster. If you want to keep your coffee machine as long as possible, then keep in mind that you must go through the maintenance process every day:   Do not brew or keep coffee warm all day – turn it off as soon as possible.   Use only clean, filtered water, and use a descaler on the filter every other month.   Rinse and clean any removable part of the machine monthly.   Run some plain water through the machine before brewing. If you dedicate some time to maintaining the machine, it will surely outrun the warranty period and give you consistently good cups of coffee.