點解洗碗碟機鳩射就洗得乾淨啲嘢？

有隻ikea鑊洗甩咗層coating

Is it true that using dishwashers can save water when compared to manual washing? In the UK, can such saving cover the electricity charges incurred?


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Yes, using a dishwasher can save water compared to manual washing, especially if you tend to wash dishes under running water. Studies show that modern, energy-efficient dishwashers use as little as 9-12 litres of water per cycle, whereas handwashing can use up to 20-40 litres of water depending on how you do it.

Water and Electricity Costs in the UK
Here’s a rough breakdown:

Water Costs
The average cost of water in the UK is around £1.91 per cubic metre (1,000 litres).
A dishwasher using 10 litres per cycle costs ~£0.02 per wash for water.

Electricity Costs
A typical dishwasher consumes 1-1.5 kWh of electricity per cycle, depending on the model and cycle settings.
At an average UK electricity rate of £0.30 per kWh, the electricity cost is £0.30-£0.45 per cycle.

Manual Washing Costs

Assuming you use 30 litres of water to wash dishes by hand (average running tap), the water cost is ~£0.06 per session.

No electricity cost applies unless you use hot water, which may indirectly increase your gas or electricity usage for heating.
Can Dishwashers Save You Money?
While dishwashers save water, the electricity costs generally outweigh water savings in terms of financial benefit. However:

Using eco modes reduces energy consumption.

Running a fully loaded dishwasher is far more efficient than washing the same amount of dishes by hand.
Dishwashers save time and effort, which is valuable in itself.

Conclusion
In terms of water savings, dishwashers are more efficient than manual washing. However, the financial savings on water alone may not entirely offset the electricity costs. The key benefit is more about water conservation and convenience than outright monetary savings.

UK d 電 又真係貴D 平均0.2p-0.45p都有 ，單相dishwasher booster heater 平均1800w 由開機到煲熱booster再fill 個tank 起碼 4-5次先滿 ，果到又 1 hour , 之後洗 佢又tank 同booster 各自分段加熱先過水 又半小時 ，計番第一次洗要比10蚊左右 ，第二次之後平均 5蚊 🥶

人地洗碗碟機有個步驟係整番乾, 你又整濕番

唔記得落dishwasher pods?

貴就唔一定既, 係要大, 留位入櫃最好, 其實洗碗碟機個design同 洗衣乾衣差唔多, 唔算高技術野
但係細細部果D, 放唔到煮食用具果D都係廢

係, 我身邊話洗得唔乾淨既都係D住公屋auntie uncle , 佢地都應該去旅行都未用過

咁早起身呀？

有冇ching用過東芝DW-05T2
好似幾唔錯
唔使改喉鑽櫃
有冇用後感分享
想買部試試

只買Bosch, 其他全部唔掂

連登仔: 啲老屎忽唔肯接受新事物真係好廢
洗碗碟機呢啲機械野點夠人手洗得咁乾淨

manual 有寫一個cycle 要用幾多電
唔駛估估下

洗碗機有左好多年啦喎 你最近先裝

post黎有咩用
咪重覆返我講既野
「 especially if you tend to wash dishes under running water」
咪話你手洗係長開水喉咁洗 咁洗碗機咪慳水囉
同埋都係個句 你未計沖廚餘 machine cycle洗機 之類
咪話計埋就差唔多囉

不過篇野咁樣計埋都講得出洗碗機係慳唔撚到電
總結即係水又未必慳到 電就一定慳唔到

你手洗咪又係要洗鋅盤，仲要廚餘多時你都要洗幾次，唔係塞住去水位你都唔知點洗。然後用電，香港可能唔需要，但外國例如英國，你好難唔用熱水洗，其實咪一樣用電。

我諗你自己上網睇片，好多講洗碗機既片有對比過手洗同機洗用水量，講緊機洗用既水係遠少於手洗。講緊3倍以上。夠你空機轉1~2次了。你講既長開水喉甚至去到4~5倍以上。

就算當你手洗技術高超，唔用熱水，用既水可能多少少最後電費水費加埋打和，你至少都慳左手洗個時間成本。

絕對認同係慳時間成本

但樓上講慳水慳電真係未說服到我
單睇水費單 起碼我自己用洗碗機前同後係無平過
如果有好多人話真係平左既
咁我咪信慳水 都係理性討論下者

根本唔駛拗，細機用5000 ml 水就洗到一堆野

5000 ml 水只係你開住水洗兩三分鐘野
除非你死拗洗5隻碟4 隻碗3 支匙羹8 隻筷子連過水淨係3 分鐘都搞掂

我覺得用家問題。洗碗機過水就算計埋空機洗機同洗廚餘隔，基本上都一定少用水過你手洗落完洗潔精後過水，絕對慳到水。

你唯一用多左水可能就係你洗唔乾淨要再重新用手洗，咁你點解唔思維改變一下。你明知道有啲跡用水噴洗唔乾淨，點解唔先用少量洗潔精+極少水人手刷甩啲跡再放入機？至少一定比你自己刷完再人手過水乾淨好多。同你一定確保到自己唔需要入完機再重新出黎人手洗。咁已經可以少好多水。

另外就係你先prewash再放入去咁當然唔會用少左水。洗碗機最慳水個part係過水，你先過一次水再放入去洗，咪唔會用少左水。

又黎用家問題

我上面咪講左囉
「次次d test都係剩計部機洗個刻用幾多水
assume部機一定洗得100％乾淨
唔計沖廚餘 洗廚餘隔 machine wash 同埋部機洗唔乾淨要再手洗」

不如我講你聽我係點用喇
我係會prewash沖走廚餘先
放入去洗
洗完 好彩既咪成機乾淨 唔好彩可能有幾件野洗唔乾淨咪再手洗

每幾日洗filter
唔好話做乜幾日就要洗一次
事實唔清真係好撚臭
部機整乾d碗碟個陣 蒸埋個廚餘隔filter d味出黎
每一個禮拜或者兩個禮拜一次machine clean cycle
用左洗碗機幾年都係咁

咪同你講左Prewash同洗唔乾淨係你，即用家問題。
我講緊每次裝少半碗水去刷甩啲難洗既跡同醬再放入去，
基本上從來無試過洗唔乾淨。
係呀D test計出黎係無計廚餘隔同洗機。
但講緊每次用少3倍水，你洗機同洗廚餘隔要用多咁多水?

至於你話大件既廚餘，真係就咁入垃圾桶就算，
垃圾桶本來就係臭，點解要沖乾淨啲廚餘再扔
汁湯就咁倒鋅盤然後洗鋅盤，從來都唔會去沖啲碗
部機已經會幫你用洗碗珠+過一次水，
汁湯點解仲要過水再放入洗碗機?

仲有我唔知你部機係點，我部機係唔會烘乾碗碟，洗完即開蓋風乾
有熱氣係因為用熱水沖，就已經用少好多電，同無咁大陣味係啲碗碟上面

搵工人洗

完

"未計沖廚餘 machine cycle洗機 之類"

我唔知原來搵隻刀叉撥啲固體廚餘落垃圾桶要用好多水。

屌你老母

我果部都係得條熱水喉俾水

加埋燈好似乾淨啲