The Filter US newsletter has been testing a wide variety of products for the past year. These tests encompass items like instant coffees, cat toys, towels, and sleep masks. They have rigorously evaluated packing cubes on numerous trips and slept with many different sleep masks. A large group of coffee drinkers participated in blind taste tests of instant coffee. The publication has also investigated products such as non-toxic pans with the help of a food lab. They have conducted blind tastings of items ranging from protein bars to nonalcoholic beer. Additionally, they shared insights into celebrity endorsements, like Padma Lakshmi's preferred kitchen tools. Their coverage includes a broad spectrum of products, from expensive mattresses to affordable cleaning brushes. The Filter US has also identified significant discounts on their highly recommended items. Ultimately, they aim to guide readers toward making fewer, but better, purchasing decisions.