A new technique to improve the hydrogasified coal char reactivity through a controlled coal loading at a fixed H-2/coal feed ratio is presented. Under this technique, apart from the hydrogasification pressure and temperature, careful manipulation of the H-2/coal feed ratio and the concentration of coal particles in the reactor (coal loading) has been found to influence the char reactivity without affecting the coal conversion, whereby the char reactivity increases with increasing concentration of coal particles in the reactor up to a certain point. These results were supplemented by hydrogen gas yields obtained from the steam gasification of the chars, which also showed an increasing trend with increasing coal loading. Between the two coal loadings employed in this study, i.e., 30 g/dm(3) and 60 g/dm(3), a hydrogen yield increase of between 4 and 20%, depending on the type of coal used, was attained. The findings show that with the manipulation of some hydrogasification parameters, it is possible to establish operating conditions that produce more reactive chars without compromising product gas yields.