Rats were give powdered food for 24 h and one of the following six conditions: water, 0.0025%, 0.005%, 0.01%, 0.04% quinine solutions, and no liquid, to study whether rats drink in excess of apparent water need induced by dry-food eating. Quinine solutions were used to discourage habitual drinking in excess of apparent water requirement. The results indicated that there was no excess water intake when rats were given dry food [although Morrison (1968) showed rats drank in excess when food deprived]. The efficiency of a liquid to consume dry food was found to be constant’ from water up to 0.01% quinine solution. Low efficiency of 0.04% quinine solution may be due to small amount of intake of the solution. This low intake level of 0.04% quinine solution may be sufficient to correct the dehydrated state produced by eating dry food but not enough to produce additional eating