Is powder or liquid dishwasher detergent better for the proper operation and maintenance of a dishwasher? Specific brands of dishwasher or not? If I use one or the other for the sake of my dishwasher, I'll have to sacrifice clean dishes? One or the other clean dishes better. And so today I learned that … I prefer the gel to liquid dishwasher detergent, packages, or powders. I think further waiver, clean and leaves little or no residue, and my dishwasher does not take the smell of dirty water. Not even buy namebrand gel either. I also make sure to use a cleaner removal of at least once a week, which also helps maintain the clean lines and standing water in the new dishwasher. I run my dishwasher empty about once a month to a new cycle of standing water in the filtration system.