We've received a lot of questions regarding our Gold Series filters: the Gold Kone, Gold DISK, and Gold DISK Fine.
Our Gold Series filters were originally designed to be prizes for barista competitions. We started to receive requests that they be available for purchase, so we added them to the website last year.
The Gold Series Kone, DISK, and DISK Fine perform very similarly to their stainless steel counterparts, with two minor exceptions:
1. Gold is chemically unaltered by air, moisture, and almost everything else, so it doesn't impart any taste into the cup. We can't taste any steel when we brew with the Kone and DISK -- stainless steel is itself very resistant to corrosion, and should not impart any taste under normal use -- but science says that gold is even more resistant.
2. The gold filters are more slippery than their steel brothers. This makes them slightly easier to clean. We've also found the coffee bed to sink more readily in the Gold Kone, perhaps allowing for a more even extraction.
Should I buy one?
We think our Gold Series filters are the best filters we make -- for their unreactive chemical nature, their easiness to clean, and, in the case of the Gold Kone, the way the coffee bed sinks so evenly. They also look fantastic. That said, it's hard for us to spot a noticeable difference in taste from coffee brewed with our Gold Series filters. Their price is not representative of a massive jump in performance; instead, it's reflective of the costs associated with having a jeweler gold-plate stainless steel objects in limited quantities. Gold is expensive!
Ultimately, our Gold Series filters are designed to be the finest expression of the products we make and love. They look beautiful, clean easily, and make a great cup of coffee. We hope you enjoy them as much as we do!