Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: How much clearance for the cups?
Document: We have used Krups machines for years to make espresso. This is a great machine for the price. We make about 40 cups of espresso a week and this machine is perfect for our purposes.
It seems like the amount of steam accumulated by the machine is not enough to support continuous frothing. I tried different kinds of milk, different milk temperature, even different temperature of water in tank. Nope, no correlation.We used this espresso machine to produce 2 big cups of latte/cappuccino daily. In less than one month the nozzle of the milk frother broke off during cleaning. I was not sure whether it is my fault of plastic defect so I decided to purchase new one.
With that pressed back in place, the machine is back in business. I'm honestly surprised it's lasted this long without a serious deep cleaning, considering how much we use it.Cliffnotes: great espresso, lousy steamer.
I'm sad I have to give the machine only 1 star. I love the coffee it makes, but the frothed is very poorly designed. It broke within a few days of use.For a machine costing this much, this design flaw is totally unacceptable.
We love this machine - its the 3rd Krups espresso machine that we've purchased (in 20 years) and it's by far the best performing. The auto-tamp feature is great and the steamer works much better than the other 2 machines that we've had. Only wish that the water reservoir was a bit bigger.
If you want a single shot you add less and tighten further to the right to match up with the indicator. It is very easy to get used to and eliminates the need for an extra "reducer" part to deal with single shots. The "creama" is there but not exactly thick and not something we care that much about. The unit is easy to clean.
Now if only this one would last another 20 years! Look for my follow-up reviews. One more thing. We also decided to use whole milk for our lattes since the amount of milk we add to get the taste we love is not very much. The extra enjoyment with whole milk is worth it to us!
4.5 stars. It does not generate much crema but the taste is great and it heats up very quickly, makes the expresso and then provides plenty of steam for the milk. No problems with the steamer nozzel. Very neat how the used coffee grounds are ejected from the holder. I have had lots of expresso machines. For ease of use, this is the best one so far.
Much more expensive machines have been a hit or miss. The nespresso steamer add on was like blowing bubbles through a straw!The steamer is the quietest in business. It almost seams like it is not doing anything.I have had one blow out with the Krups steamer wand, but that was the only time when I did not clean out the wand after use. So the nozzle tip was partially-blocked with milk.
Just remember to tighten all the way and then loosen one notch (only for very fine grind - does not matter for "starbucks grade fine grind"). The tamping system works as advertised - I was really not sure about this part.Cleaning with the cake removal works MUCH better than the Krups 4030 (which is pathetic), and the delonghi.Now the much hated (by others) steamer wand...
Answer: Less than a normal sized mug, approx 3 1/4 inches or so frm the filter spigot to the drip tray plate.