Presto 02835 MyJo® Single Cup Coffee Maker, Black, 1cup

A couple great features;It helps to limit your coffee consumption, instead of the whole pot.It's easy to use, clean and store.The coffee maker is simple.1. You pour heated water or heat cold water in the clear cup.2. Attach the top rubber plunger, and it's large safety press button3. Lift it up by the rubber plunger, (not the button) to easily twist on the bottom.4. Place the whole unit directly atop a non-crushable cup and slowly press down and let up pressure about 3 to 4 times. You don't need superman or wonder woman strength, just steady even pressure.Your coffee is now ready.Clean up is simple. Separate the parts, rinse them and let them dry.If the above steps are followed, you will not scald yourself.Although if microwaved, you may need to wrap the red section in a small towel to remove from microwave. Normally, I set my microwave to 3:45 seconds on high and don't need a towel.How the water flows:The hot water leaves the clear chamber through a clear one-way food safe silicone valve inside a piercing hard silicone tube poking into your Keurig pod or the included coffee grounds container.The bottom of the Keurig pod, when inserted in the screw-on base is also pierced with a hard plastic tube draining directly into your cup. You press atop the large safety button which pressurizes the air forcing the water to travel down.Note:After reading the negative reviews and all the strange ways people are handling it, the major non-user caused complaint over time is the clear rubber one-way valve in the bottom center of the cup weakens allowing it to either pop out into the cup or the valve allows coffee grounds to be sucked into the cup of water on release of the safety button.I've had my MyJo's for half a decade without issue and I can say there are ways to fix these complaints.1. Valve is displaced;a. Buy some silicon food safe sealant, like Sil-Poxy, and place a tiny bead around the inner edge of the open hole into which the valve normally sits. The valve will sit "IN" the epoxy and no epoxy will be exposed to the hot water chamber.b. Clean the coffee coloring off the valve, wash out the piercing valve body with soap, water and a bristle brush until the unit looks almost new. Let it all dry apart, then reassemble. The valve should now seat properly for another 6 months or year depending on your daily usage.2. Coffee grounds travel up to water chamber -a. Clean it well. Get the coffee scum off of it. See above. Sometimes that fixes it.b. Ensure the black screw-on base is tightly mated to the upper chamber. When it's loose, this happens too.c. After each press, gently release your hand pressure. The problem is sufficient Air is not available to travel around the safety button, so instead it comes through the Keurig pod. Your hand (palm) should be pressing the button, not covering the entire button so that air cannot get through on release.Over time, the valve, subjected to years of near boiling water, weakens. If none of the items above fix it, your options are either, 1. Live with it, 2. Buy a replacement valve, 3. Throw the unit in the trash, or 4. Buy a new unit.I was given two of these by a friend and now I'm ordering a third.I want to ensure I have them incase they're not longer available.I hope this helps someone.

I bought it at around $21 dollars. So maybe it will come down in price. Here's the deal. It is light weight, easy to use and needs no electricity. You can heat water in the container in your microwave or pour boiling water into it. Would be great for power Outages, that is, heat your water in a coffee pot on a gas stove, wood fire etc.I bought it mainly because we have a very small kitchen and not much counter space for another appliance like a Keurig Coffee Machine. This thing is small and works, store it anywhere.It all comes down to if you like the K-cups type of coffee? It might taste a bit better than the Keurig machine, as you use your own pressure, which possibly forces water into the coffee, like a higher pressure Coffee Machine. But I can't prove that.I have used Dolce Gusto Coffee Machines from Europe for years. And Also sampled Nespresso Coffee. I think both taste better than K-Cup Coffee. Also they have a good Creme from the Coffee.This device though, makes a good cup of Joe at a cheap price. Those K-cups are for sale everywhere, unlike Nespresso or Dolce Gusto. So, yes it's a good device for travel, camping, power-outages, or home.Of course in an emergency one can make Cowboy Coffee and dump Coffee grounds into a pot of Coffee. But most don't want that in day to day life.I recommend it. Price has shot up a bit, as of the date of this writing, I suspect it will come down in price.Finally, the first time I tried it, I thought it did not work. I had not sealed the Rubber Pump, Stopper correctly and all I was doing was hearing a hissing sound and nothing happening. make sure you have sealed it well on top.I have went through a few boxes of coffee. I enjoy it!

I've seen a few negative reviews, some unfair in my opinion. Are there some issues Presto should address? Sure there is, but there are also somethings that the user can do to totally avoided these issues with a little thought on their part and I'd like to address these.1. Although you can put the upper half into a microwave oven, why would you? Over time the microwaves that are used to heat the water will adversely affect the coffee makers parts, especially the small silicone valve. Silicone is very versatile but it can warp, more so with the very thin membrane like this valve. I suggest using a larger Pyrex measuring cup or other microwave safe container to heat the water, then pour it into the My Jo water reservoir. Or use a kettle on the stove top. Sure it's an extra step, but if you're using fresh water it isn't like the microwave container is going to get dirty.2. Speaking of the valves, I believe it would be in Presto's best interest to include a spare one. That being said why order just one if the shipping is higher than the cost of the valve? I ordered 10 for the same shipping cost as one. You never know if they will be available in the future if you do eventually need a replacement. Best to have a couple spares.3. I see some people complaining that the grounds get sucked up into the My Jo water reservoir. This is completely operator error. The air is suppose to be drawn in from the top between hard plastic and the flexible bellows pieces. If one is "refilling" the bellows from the bottom where the coffee K-Cup is located, you are doing it wrong. I can only imagine these people are not allowing air to enter from the very top and/or are pulling the bellows up manually instead of letting the air in through the top. Pull down genitally and evenly on the hard plastic piece on top of the bellows. If you examine this piece it has small grooves around its base to allow air to pass by. When you push down these small grooves go into the bellows far enough to be covered and groove-less plastic contacts the bellows to make a seal to push out the water. Remember don't pull on the bellows to introduce air into it.To aid in this process, make sure the top, the bellows, and the silicone valve are dry before using. Water can be a lubricant for the silicone valve. It only goes in one way in the poly carbonate water reservoir and shouldn't pop back into the reservoir if you allow air to enter in through the top of the bellows. If the plastic top sticks into he bellows part, you may want to pull the plastic top up a little while holding the flexible bellows portion down so it will not try to draw air in from the bottom.4. Lastly, I have to chuckle when I see some people say it's dangerous to use due to tipping. Please don't take your small based tea cups camping! For that matter don't use them with My Jo at home either. This is definitely designed for coffee mugs. It is essential the you have a flat, fairly level, stable place to set your cup on. Addition of a stand of sorts would make this product lose it's portability. Although it can take the place of a standard coffee maker, that's not it's purpose.This is a good product with some room for improvements. It's especially good for camping, or power outages as long as you have some means to heat water. Just be patient with it and don't force the process, especially between downward pushes.