Self-heating is the tendency of certain porous solid fuels to undergo spontaneous exothermic reactions in oxidative atmospheres at low temperatures. Self-heating can cause accidental ignition of reactive porous media leading to wildfires, ecosystem damage, property damage, loss of industrial facilities and even loss of life. Traditional self-heating ignition literature studies have been dominated by coal. However, there are many other materials prone to self-heating ignition like biomass and other common materials, including lithium ion-batteries. This talk will focus on reactive materials prone to self-heating in storage conditions. Francesco will present an experimental comparison of various biomass and biochar and what effect composition and source has on the biochar's relative fire risk, as well as a study of lithium-ion battery conditions for self-heating in storage.