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

Input:
Question: What happens without the mineral cube? Do you suppose it's the minerals and not the water?
Document: This is a great product which is very easy to use. Once the proper water (I used distilled water) is inserted and the the unit turned on, it immediately begins to spin like a tornado with the proper spin on the liquid, which is so important to health. Also, the cube that contains minerals is also going to work in the water. The unit comes with a replacement mineral pack and has a counter and will even let one know when it needs to be changed.
I even opened my second mineral cube to see if I just had a bad spinner (the one that comes with the machine), but IT too just sat and flopped around in the bottom. To say that my frustration level with this machine was at an all time high would be putting it mildly. Maybe, I got a defective machine but I sent it back without reordering another one.
What I do now is when I get up in the morning I fill the pitcher up and make some water for the day and then either place it in my 'frig or just set it in my office.Some will say this is too pricey but trust me with a mineral cube provided that lasts for a year that is a huge saver on what you would pay for bottles that are thrown away and hopefully recycled!!!
This has actually gone down quite considerably since I purchased it last summer, it was actually more. My opinion is that I can't justify the price of this. After letting the water swirl in this thing about 20 something minutes, I did notice a few bubbles, the water seemed a little softer and had a sodium like taste to it. I believe it may just be the mineral cube that gives the water the sodium taste.
My husband was diagnosed with head and neck cancer so I bought this very expensive machine because he's supposed to drink lots of fluids and I researched  Hexagonal water and it's benefits. As well as purchasing the machine, I bought an extra mineral cube. Each mineral cube comes with a new spinner. The spinner is what makes the tornado and the water spin. The problem with this whole design is flawed. The spinner gets stuck under the mineral cube and just makes a lot of noise and no tornado action.
I was literally sprinting around like a kid about 5 minutes later. I'd do the two 27 minute back to back cycles more often, but a) it's time consuming, and b) you'll QUICKLY wear down the cube if you do it regularly. These replacement cubes aren't cheap, $75 a pop, but when you drink most of your water on the 9 or 18 min cycle, it will last a single person a good 9-12 months.
:)  In fact, I just downed about 24 oz. of 18 min water about 15 minutes ago.
I have been very pleased with the Vitalizer Plus. I'm able to drink much more water, and I love the taste.
This is absoulty the best water system ever, I also did alot of research on this machine and I'm so glad I spent the money it's worth it.
The Vitalizer Plus makes the BEST and SAFEST Hexagonal Structured Water. Just like nature makes Hexagonal Structured Water.Everyone should own one.
Answer: The water structure will not change.  The main source of the minerals comes from the mineral cube through the vortexing of the water.