Blom was born in Ekerö (Sweden) and is the brother of Anna Dunér. He studied humanities at the universities of Trier, Stockholm, Uppsala and Freiburg, where he became a member of Corps Suevia Freiburg. In 1996, he earned a degree in archival studies. He is one of the founders of the Verein Corpsstudenten in Schweden (Students’ Club Corp in Sweden), a board member of the Concordia Catholica (the Catholic Union) and an active member, among other things, of the Sällskapet Emil Hildebrands Vänner (Society of Emil Hilde’s Friends) and Par Bricole. He was previously vice president of the Katolsk historisk förening i Sverige (Catholic Historical Association in Sweden).

Blom is a well-known and active member in the Catholic community, and in 2008 was ordained as a Knight of the Order of the Holy Sepulchre of Jerusalem by the Catholic Bishop Anders Arborelius.

Blom has taken part in several programs about the history of the trade, especially for the Swedish TV channel TV8, including the series Fredag med Edward (Friday with Edward). In 2009, he became known to a wider audience with the series Mellan skål och vägg med Edward Blom (Between the Bowl and the Wall with Edward Blom), where he travels around Sweden together with economics journalist Peter Andersson, showcasing gastronomy and drinks and telling stories from the places they visited. He appears regularly on radio, especially, on Sveriges Radio P3’s programme Morgonpasset.