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

Input:
Question: I know you can't program this coffee maker. But could I leave the switch on and use an external (light) timer to turn it on automatically?
Document: There's one switch - &#34;On.&#34; It automatically turns off after two hours, so no worries about forgetting about it. It's also a very attractive coffee maker.If you love coffee, just buy it. It's one of those &#34;I didn't even know that this $7 trader joe's coffee could taste so good&#34; moments. And it only takes a minute or so for it to brew.
This switch comes with an iPhone app that controls the switch over a wireless network. I can manually turn the outlet on and off from my phone, or program the WeMo as a traditional timer to turn the outlet on or off at a specific time. I plugged the WeMo into the outlet near the coffeemaker, and then the coffeepot into the WeMo. Now, I prepare the coffeemaker the night before and put the Bonavita power switch in the on position with the WeMo off.
So we bought the Bonavita.Killer cup of coffee. No digital clock or timer. I mention 'old school' in title because it is. You literally set the filter assembly onto the carafe and set it under the spray head. When done, you have to physically take the filter assembly off, and screw on the lid. Turn it on with a mechanical switch, when done the mechanical switch turns off. Not a membrane switch, a physical rocker switch (lighted) that rocks back to OFF automatically when done.
You should also handle this carafe a bit more gently than the Cuisinart as I think the glass could be more prone to breakage.The Bonavita has a mechanical on-off switch, as opposed to the toggle switch used on Cuisinarts. The switch returns itself to the off position automatically after 15 minutes, or manually anytime you want to switch the unit off. That gave me an idea of how to work around the problem of the lack of a timer on this model.
I purchased the thermal carafe Bonavita in September 2012 for use in our office. It worked great and made great coffee, quickly from day one. Until one day in April. The first pot in the morning worked just fine. Then in the afternoon it completely stopped working. Flip the switch and the light would turn on and then...nothing. No noise, no water heating, nothing. And it would still be like that twenty minutes later. Not brewing at all.
I love my coffee. Every morning 2 cups. This is the perfect coffee maker. The coffee is hot and delicious. The process of making the coffee is easy because of the clear water tank. You can see the measuring lines easily while pouring the water in the top. It has a thermal carafe with a glass liner so the coffee doesn't pick up any metallic notes. There are no bell and whistles--no clock, no timer. It does automatically turn itself off. I will buy another one.
cannot function prior to that first cup) you can use a light timer. Just make sure to push the switch to on and when the timer activates the Bonavita will do its thing. And the thermal carafe is excellent at keeping the coffee hot -- just make sure not to drop it (it is actually a glass carafe insulated within a metal container).
Our Bonavita 1800 completely stopped working after a year. The light would turn on when we switched it on but then would shut off after a second or two. I did some review reading and read that others had said Bonavita's customer service was poor and that people had better luck just going through amazon for the return. My wife emailed them and promptly received a response that a new coffee maker was being shipped out - immediately. In my mind you could not ask for better customer service.
This coffee maker does one thing only, make coffee, and it does that exceptionally well. No timer or clock to set. No dark or light brew button to push. No temperature dial to adjust. All that is required is coffee and water, then flip a switch. I have been impressed with the coffee temperature, the quality of the coffee maker and the simplistic design. If you are looking for an above average coffee maker, this is it.
That is, there is no heating pad that stays hot for hours, the switch automatically turns off after 15 minutes (you can turn it off manually sooner) and there's no clock, so it doesn't set there and suck electricity like a vampire after the coffee is made. Next, I really love the carafe. It keeps my coffee still hot to the taste even 5 hours later. Now, I drink my coffee black, with nothing in it, so that works for me.
Answer: Technically it should work. However, we haven't tried it yet for three reasons: 1. Leaving the grounds open to the air all night will decrease the flavor (more of a problem for real purists). 2. The coffee is better if one heats the carafe first with hot water. We're also concerned about the glass lined interior being exposed to near boiling water starting from room temperature--a few postings have commented on broken glass lining. We havent seen this frequently so it's a theoretical concern, but hey...  3. The heat will dissipate more quickly the longer the brewed coffee stands without replacing the filter housing with the insulated cap. Again, this is more of a theoretical concern, as we've found the carafe retains heat very well. We will probably try it once we get over our inertia and will post further when we do.