Based on available information, Four Sigmatic is considered the weakest instant coffee.
Details on Four Sigmatic
According to a test referenced on June 8, 2023, while Four Sigmatic was the weakest among those tested, it still had a pleasant, earthy flavor. This makes it a good choice for people who want to drink multiple cups of coffee without experiencing the strong effects often associated with caffeine.
Summary
In short, if you're looking for a milder instant coffee option, Four Sigmatic is the weakest based on one test, yet still offers an enjoyable flavor.
