[DCBryan1]

What do they use on a dairy that could cause that kind of explosion?

Cow fart buildup in HUGE buildings:

[Justa]

Yeah, that’s it -methane. Methane replaces fuel oil in the ANFO as the initiator. ANFG. A lack of ventilation and an ignition source and the ammonia-nitrate-methane detonates.

[PGR88]

EPA and Texas probably would not allow them to vent all that methane

I suspect they were collecting it - and using it to power the operation

Its “natural gas” after all!

[Sequoyah101]

50 acres under roof

[matt04]

I have to assume a building like that has numerous ventilation systems in place and is automated so no one can forget to turn on a fan and have too much methane build up.