Measuring human digestive efficiency vs. a flame

“200 Calories“ on a nutrition label doesn't describe the total flammable caloric content. I explore the differences between digestible and flammable calories using a homemade calorimeter with glass windows. Pressure sensor: Schedule 160 pipe on McMaster: 32 ga nichrome wire: Power supply (used for ignition wire): Keithley 6.5 digit multimeter: Tek MSO 4 series oscilloscope: Soylent: Hmm, I perhaps mis-remembered that 20% stat from Sally Le Page's video: There may have been another source that indicated the 20% number. This will probably show up in my future video