Remember to use no more than 2 or 3 drops in a large volume of water, such as a gallon (~4 liters). If the water is sudsy, you used way too much detergent. After washing, rinse with lots of water to remove all the detergent. If you're really compulsive about it, use deionized (DI) or distilled water for a final rinse. If you want to use alcohol (ethanol or isopropanol) use it mixed with the DI water as a final rinse. It helps to dry the record faster and prevents water from beading up as it dries.
I saw a post where someone said to mix liquid detergent with an alcohol/water mix. There's no benefit in doing that. It wastes the alcohol that you must buy. I'm not at all sure if the detergent makes micelles in the alcohol/water mix the same as it would in plain water. It's those detergent micelles in water that dissolves the finger print grease.
