So once we received our first shipment of signature Chemex filters, we decided to do a side by side brew comparison to practically determine if you could tell a difference in the cup. Watch as Allison brews up two batches on the Chemex and we taste them to find out.

So we put Allison to the test! Watch as we brew up a batch in each, using the same grind and coffee-to-water ratios, allowing them to sit over night and then giving them a taste test. We also compare how much sediment appears in the cup. So exciting!

Gail walks us through tips, tricks and things to keep in mind when steaming your milk, either for the ‘wet paint’ texture for latte art or the dense, shaving cream microfoam for cappuccinos. Watch her demonstrate best practice on the Rocket Giotto and the Saeco Via Venezia.

We asked him to put these two ideas to the test to determine if either results in a noticeably improved cup. Hilarity ensued.

Watch as he talks to us about how Bodum’s vacuum coffee pot works and demonstrates brewing a cup of smooth java.

Watch Gail test it out on the Saeco Xelsis superautomatic to see how well it performs.

We put a couple of bags in the freezer back in October 2010 and then pulled them out of the vault three months later. Watch as Gail pulls shots using one bag that was completely sealed and another bag that was opened and then folded closed using the bag’s tabs.

Check out our test and take a moment to appreciate our dedicated commitment to science — we tasted some seriously nasty shots for the team, people!

But thorough testing by scientists much more focused on this than us has revealed that the ideal mineral content for coffee is 150 parts per million (ppm) of total dissolved solids (tds). More than that and you run the risk of under-extracting the coffee (basically, there’s not enough allowable space in the water for the coffee particles to be absorbed) and less than that means you can likely over-extract (there’s too much space and it takes on too many coffee particles).

Commercial coffee operations invest in high end water treatment systems that will ensure they’re using the best possible water/mineral balance to easily make excellent coffee. This is of particular concern to large chains that have cafes in different cities as they can’t rely on the local water’s tap to be the same across the board. Companies such as Cirqua came along to address this issue for cafes, but they understood that most folks that wanted to make coffee at home just weren’t going to invest in a high end filtration system.

So they developed this easy-to-use solution that you can employ at home: Add the two capsules (per dosage) to one gallon of distilled water and you have the perfectly balanced mineral water to make an awesome cup of coffee. We tested it out at the store, check out our results: