Measurements of the far-infrared absorption of electron-hole drops in germanium at 1.2 K in the spectral range 1.5 to 50 meV are reported. The line shape agrees well with Mie's theory with a dielectric constant that includes interband hole transitions and a frequency-dependent damping. The absorption has a very sharp threshold at 2.8\ifmmode\pm\else\textpm\fi{}0.1 meV, the onset interband hole transitions. This sharpness is caused by an extremely long collision time for electron and holes near their incongruent Fermi surfaces. The electron-hole density is found to be (2.02\ifmmode\pm\else\textpm\fi{}0.05) \ifmmode\times\else\texttimes\fi{} ${10}^{17}$ ${\mathrm{cm}}^{\ensuremath{-}3}$. The line shape changes slightly with excitation level. At low excitation, the drops are smaller, have a lower average density, and the absorption is highly damped by surface collisions. A coated sphere model is used to include these effects in the Mie theory. At high excitation levels, the drops are larger and higher multipole terms in the Mie expansion must be included. It is found that drop sizes vary with excitation from 0.05 to 2 \ensuremath{\mu}m at 1.2 K.