==Costs== * A £300 machine lasting 10yrs = £30/yr = 57p a week. * [[Electricity]] use is comparable to power use for handwash water [[heating]], so is not an added cost * [[Detergent]] tabs 7.5p a wash * salt £1.30/yr = 2.5p/week
2 machine washes a week = 57+15+2.5 = 84.5p
If we estimate 12 minutes a day handwashing, that's 84 mins a week.
Thus each hour of handwashing avoided costs '''60p'''. Working for 60p an hour seems to be popular.
[[Water]] use is typically less than hand washing dishes.
==Cleaning== Baked on grease can be removed from wire oven shelves by dishwashing, which softens it temporarily, then wiping with a copper scourer. Remove from dishwasher at the end of the wash cycle while its still hot, not after the full cycle is finished.
Baked on grease is mostly not removed from non-stick goods, but regular washing can at least slow down its formation.
Egg and egg mixes can cook and stick on rather than [[clean]] off with some wash programs. Egg needs to be cold washed to avoid it setting, and programs designed for oven dishes [[heat]] up right away.
[[Wood]]en items can be dishwashed, but the wood surface slowly deteriorates over many washes. OK for a one off wash of tools, or for low value disposable goods such as cooking spatulas.
==Other uses== Cleaning many diy items
===Descaling=== Goods can be descaled in a dishwasher by putting citric acid in the detergent dispenser instead of [[detergent]].
===Electrical goods=== Despite the usual advice to never mix [[electricity]] and water, a wide range of electrical goods and parts can be dishwashed. However its essential to choose correctly which can and can't, and also necessary to use a safe drying procedure, which isn't as simple as leave till touch dry.
This should not be attempted by anyone without the necessary [[electrical]] expertise to do it [[safe]]ly.
===Cooking=== The art of dishwasher cooking has a small cult following. Care is necessary to avoid washwater & detergent contamination.
===Not able to=== Dishwashers do '''not''' sterilise items.
One use we can't really recommend is cleaning the toilet seat by putting it in with the dishes. Apparently this was actually done in one US restaurant. Yum.
==Detergent== The author has used various brands of detergent tablets from cheapo to expensive brands, and has never found any difference in the end result.
Separate detergent and rinse aid is cheaper than the more expensive brands of detergent tablets.
==Salt== All in one tablets contain salt, but its not used in the machine to do the same job as the salt in the salt reservoir (ie to refresh the ion exchanger). The salt reservoir still needs to be filled.
Only use dishwasher salt. Other grades are much too impure, and stop the ion exchanger working, causing scaling & water spotting.
==Maintenance== * Unblock spray arm jets & check they rotate ok * [[Acid]] clean the machine * Ensure the machine has salt in the reservoir
==When it doesn't clean== When a dishwasher doesn't clean stuff off, the following can be used: * An overnight soak in water before dishwashing removes a lot of muck * A 2 day soak in bleach removes more resistant muck * Cleaning ceramics, glass & plastics with hydrochloric [[acid]] removes just about everything else, including rust marks * Vinegar soaking removes a fair range of muck films on stainless steel pans * Spots of rust & muck on steel can be removed with a copper scourer or a brass brush in a [[die grinder]].
==Cleaning the dishwasher== Proteins form a gloop that accummulates in some hidden parts of the machine, causing smells, bacterial & [[mould]] growth and sometimes machine failure.
Ordinary washing up liquid removes muck dishwasher [[detergent]] doesn't. A squirt of it in the machine before starting avoids buildup.
Acetic & citric [[acid]]s tackle both protein gloop and [[limescale]]. These need to be used without the usual [[detergent]], which is [[alkali]]ne.
They are far more effective used hot than cold. For it to work hot requires delaying its release into the wash [[water]] until the main wash cycle, as the initial rinse is cold. Ways to do this include: *putting [[acid]] powder in the [[detergent]] drawer *or using a commercial delayed release dishwasher [[clean]]er bottle. These use a wax insert under the cap to open only when hot. But the cost is several times as much.
==See also== [[Dishwasher repair]]
[[Category:Appliances]] [[Category:Cleaning]] [[Category:Kitchens]]