Metal-organic frameworks represent one of the most studied options to store hydrogen for clean-energy applications. Nuclear quantum effects, and in particular zero-point energies, are responsible for the reduction up to 20% of hydrogen-uptake levels in porous materials with respect to the unrealistic case of classical hydrogen dynamics. Moreover, when normal hydrogen is liquefied at cryogenic temperatures, the conversion from the ortho- to para-modification affects the storing efficiency. We propose an experimental determination of nuclear quantum effects in the hydrogen adsorption in test metal-organic frameworks using deep inelastic neutron scattering, as well as a measurement of the ortho-to-para conversion rate using concurrent neutron transmission.