While single boiler machines are extremely cost effective, they do suffer from wide temperature fluctuations which can result in poorly extracted espresso. As such, the technique for ‘temperature surfing’ was developed by home espresso enthusiasts and you can watch as Gail goes through the process on a Rancilio Silvia. This technique can be applied to any single boiler machine — such as the Saeco Aroma, Ascaso Basic or Dream and any of the Gaggia semi-automatic espresso machines.
Does your bipass doser sometimes seem a little faulty? We occasionally get reports from customers that their older Saeco or Gaggia superautomatic espresso machine (which features a metal burr grinder instead of the newer ceramic grinder found on the most current models) is producing nothing better than dirty water every time they try to use pre-ground coffee in the bipass doser.
The cause? Static cling. In really dry climates, the static can build-up in the metal burrs, so when ground coffee is poured into the bipass chamber, it ends up clinging to the sides or going around the brew group instead of landing directly into it.
The best way we’ve found to counteract this issue is to add a little bit of moisture to your grounds before you pour them into the bipass chamber. The moisture and extra weight will make sure the majority of the grounds land in the right place and that you’ll brew a great shot of espresso.
Lime, calcium and other trace minerals exist in nearly every water supply, leaving behind white scaly deposits when the water has evaporated. Removing this scale on a regular basis is an essential component of any coffee maker or espresso machine maintenance regimen — even if you have ‘soft’ water, there will be trace amounts left over time that can build-up and hinder your machine’s performance.
Some folks suggest using filtered or distilled water from the get-go, so that you don’t risk pitting your boiler through repetitive use of the acid required to remove scale. That’s certainly one tack to take, but we’ve found that we prefer the taste of espresso made with water that has some mineral content to it. Because of that, we descale our machines about every three months to ensure that no deposits build up and ultimately burn out the boiler.
If you prefer minerals in your java as we do, there are a couple of products on the market that will help you keep your espresso machine or coffee maker in tip-top shape: Cleancaf or Dezcal. Which is better? Again, it depends on your preferences.
Billed as a cleaner and descaler, Cleancaf combines descaling acid with a detergent that will also break down the oils left behind by coffee beans. It also features a blue dye that helps with thorough rinsing.
Dezcal, on the other hand, is a straight-up descaler — and an incredibly powerful one at that. While it doesn’t have a detergent component, it’s a much stronger product and removes more scale; also, it doesn’t have a blue dye, which we think is a good thing.
Of the two, we recommend Dezcal over Cleancaf, but we carry both of them so you can determine which product is right for you.
We sell several semi-automatic espresso machines (such as the Saeco Aroma or Via Venezia, any of the Brevilles or DeLonghis that feature a pressurized portafilter basket. This is a major functional difference from other machines, like the Rancilio Silvia or Rocket Espresso semi-automatic espresso machines, which have non-pressurized baskets similar to commercial-grade machines. In the photo to the right, you can see the physical difference between a non-pressurized basket (on the left) and a pressurized basket (on the right).
OK, so they look different — but what do they do that’s different? Well, we think it’s all about forgiveness.
Continue reading Ask the Experts: What’s the Difference Between Pressurized and Non-Pressurized Filter Baskets?