To Bloom or not to Bloom

Even if you’ve just gotten into coffee, there’s a good chance you’ve heard of a ‘coffee bloom’ and have some vague idea of what it is and why people do it.

Having recently surveyed over 350 coffee brewers over Instagram and asked; ‘Do you bloom for immersion methods?’, we received a very conflicting and mixed set of replies. 244 of 369 people voted no—which prompted an investigation.

So we decided to conduct a few experiments and publish our findings to hopefully provide some insight and helpful data into the discussion. But before we get into when to and when not to bloom, let’s quickly recap on our knowledge of coffee blooming.