02-28
2010

Filled under: Frugal Friday, Frugal Friday, House, Pets - Kittens | Written by Damita

Long await post about being green in the kitchen, this one is more than likely going to be a long one as I can think of so many way of being green in the kitchen.

Dishwasher

Now I know a lot of peo­ple worry that using a dish­washer is worse than hand wash­ing but I have researched this in depth, and it turns out that no using a dish­washer on a ECO wash is cheaper and uses less elec­tric­ity than hand wash­ing.  But I would like to men­tion please remem­ber to turn the plug off while not using it as this is use wast­ing energy that doesn’t need to be wasted.

I found this arti­cle which works out how much energy and water you will use in a dish­washer vs hand washing

Water use, energy use, and car­bon foot­print
There are three big fac­tors we’ll con­sider: water use, energy use (for heat­ing the water, largely), and the car­bon foot­print that results — we’ll save things like soap and dish­washer cook­ing for another post. And, of course, fol­low­ing energy-saving tips like run­ning the “light” cycle and turn­ing off the “heated dry­ing” option will change the way the num­bers work.

Built-in dish­washer effi­ciency
The aver­age dish­washer uses 6 gal­lons of water per cycle; the aver­age Energy Star-rated dish­washer uses 4 gal­lons per cycle, and their energy use ranges from 1.59 kWh per load down to 0.87 kWh per load. Using the Depart­ment of Energy’s car­bon diox­ide emis­sions num­bers of 1.34 pounds of CO2 per kWh, that’s 1.16 to 2.13 pounds of car­bon diox­ide emit­ted per load, to go along with 4 gal­lons of water.

Energy Star assumes each load in a “stan­dard” dish­washer (usu­ally 24 inches in size) has “a capac­ity greater than or equal to eight place set­tings and six serv­ing pieces,” so we’ll go with that when con­sid­er­ing how many dishes need to be washed by hand.

Can hand wash­ing be as effi­cient as dish­wash­ing?
The short answer: maybe. First, let’s look at water usage alone. The aver­age faucet flows at 2 gal­lons per minute, so if you can suc­cess­fully wash and rinse eight place set­tings — plates, bowls, forks, knives, spoons, glasses, etc. — and those six serv­ing dishes that your dish­washer can han­dle with­out run­ning the faucet for more than 2 total min­utes, then, you might be bet­ter off hand-washing. Assum­ing you’re wash­ing 54 pieces of dish­ware (that’s 48 pieces of dish­ware — 6 pieces per set­ting — and 6 serv­ing dishes), you’ve got about 4.4 sec­onds of wide-open tap water per piece, or about 9.5 ounces of water to wash and rinse each dish.

Impacts of heat­ing the water
Let’s assume you use warm water for both wash­ing and rins­ing — half hot water and half cold water. Heat­ing 2 gal­lons of water with a gas hot water heater (from about 60 degrees as it enters your house to, say, 120 degrees, set by the ther­mo­stat on your hot water heater) takes about 960 BTUs, or about 0.9% of one therm (100,000 BTUs), assum­ing 100 per­cent effi­ciency.
Gas stor­age tank water heaters
Gas water-heaters are usu­ally more like 65 per­cent effi­cient, so it really takes 1477 BTUs, or about 1.5 per­cent of a therm, to heat that water. One therm emits 11.7 pounds of CO2, accord­ing to the EPA (pdf), so heat­ing the water with gas for each 2-gallon load emits about .17 pounds of car­bon dioxide.

On-demand (or tan­k­less) water heaters are closer to 80 per­cent effi­cient, which changes the num­bers a bit; it works out to about 1200 BTUs, or about .14 pounds of car­bon diox­ide.
Elec­tric stor­age tank water heaters
The story is a bit dif­fer­ent when con­sid­er­ing an elec­tric water heater; while most elec­tric water heaters use between 86 and 93 per­cent of their energy for heat (com­pared to between 60 and 65 per­cent for gas), elec­tric heaters aren’t as effi­cient at heat­ing water. It still takes 960 BTUs to heat that much water; it just takes about .28 kWh (since, accord­ing to the EIA, 1 kWh equals 3412 BTUs) to heat 2 gal­lons of water at 100 per­cent effi­ciency, or about .30 kWh at 93 per­cent effi­ciency. Each kWh emits 1.715 pounds of CO2, on aver­age (thank you, EPA), so heat­ing water with elec­tric­ity for each 2-gallon load emits about .51 pounds of CO2.
Built in dish­washer vs. hand-washing: And the win­ner is…
These num­bers indi­cate that it’s pos­si­ble to be more effi­cient when hand-washing, but it’s pretty tough. Can you suc­cess­fully wash and rinse a soiled din­ner plate in just over a cup of water? If you can keep the water use low, equal to an effi­cient machine, you’ll require less energy, but doing an entire load of dishes in 4 gal­lons of water is roughly equiv­a­lent to doing them all in the same amount of water you use in 96 sec­onds of show­er­ing (using a show­er­head that emits 2.5 gal­lons per minute).

So, as long as you don’t often run your dish­washer when it’s only half full of dirty dishes, or unless you are very miserly with your water use (or have an old, inef­fi­cient dish­washer), the auto­matic dish­washer is likely to be more effi­cient. That is to say, it’s pos­si­ble to use less water and energy by hand wash­ing your dishes, but it’s not easy. Of course, if you do it just right, it might just be a wash.

More infor­ma­tion at treehugger.com

Clean­ing Products

Now I have men­tioned this before down in the being green in the bath­room but clean­ing prod­uct are an large impact on the world, using more organic, more nat­ural prod­ucts is always best, the only issue that gets me if the price, I under­stand why that have to be more expen­sive because it is not just chem­i­cals like the cheaper brands but I wish they would bring it down a lit­tle bit as not all of us have money to burn.

Pet related

This one is a tough due to the fact it has taken me for­ever to find cat lit­ter than is not going to kill the envi­ron­ment, I have tried loads of cat lit­ter for one I hate the clump­ing ones as they take for­ever to clean (which wastes water, clean­ing prod­uct and not to men­tion it smells), I have gone for a one at the  moment which is lit­tle tubs of old wood shav­ings, the think I like about it the most is the fact when the cat goes to the bath­room the lit­tle tubs dis­ap­pear a leave what I can only describe as saw­dust (kind of like a ham­ster cage lin­ing) but it does have a nice pine smell and lasts longer so you don’t use as much sav­ing money and sav­ing time.  If you can go for an eco cat lit­ter it is nicer for the cat and for your noses.

Cat food tins wash out, I know it is a huge pain but if you have one cat or three like myself you will end up going through at least one tin a day, with mine it is two tins a day (I swear Onion steals every­one else’s food but I can’t prove it!), I did try putting these through the dish­washer but every­thing smelled of cat food so now I have to hand wash them with bleach as well as wash­ing up liq­uid, please use a dif­fer­ent wash cloth as it is not nice otherwise.

Also check out Eco-Me Cat Kit Nat­ural Tool Kit, you can make your own cat lit­ter and flea spray, also cat treats, I might have to give this one ago.

Recy­cling

I am huge on recy­cling, lucky for me my coun­cil pro­vide me lit­tle pink bags which I put out every week, what I have found is a lot of items can be recy­cled, in my house­hold we have one bin for rub­bish and one for recy­cling, my mother is even bet­ter and has a bin for veg­etable ends, egg shells and other organic food mat­ter which she puts in her com­post down at the end of the gar­den.  I haven’t got a huge gar­den more like the size of postage stamp but I could fit a small one in my mother informs me.

Hav­ing two bins really saves me the headache of hav­ing to keep the bag some­where, since recy­cling (I even have my hus­band doing it who told me it was a waste of time) we hardly but out much black bin bag rubbish.

Grow­ing your own Vegetables

See I tried this last year but only man­aged to grow a cucum­ber and some herbs, my mother on the other hand split half her gar­den into her veg­etable and fruit patch and grew so much, loads of leeks (I love leeks), but this year I am going to grown my own car­rots, pota­toes and leeks plus the nor­mal amount of herbs, I’ll have to update you about this later in the year.  I think grow­ing your own veg­eta­bles doesn’t take a lot of work but it is so pleas­ing to see them grow even for me grow­ing any­thing makes me happy and I suck at gar­den­ing in gen­eral, I get the hus­band to do it for me.  Even if you don’t’ have a gar­den just a small bal­cony you could grow new pota­toes in big pots.

Gen­eral Tips

  • Don’t over fill the kettle
  • Don’t waste food
  • Bulk cook where you can
  • Make your own lunches
  • Re-use items where you can
  • Turn the lights off when you leave a room
  • Re-use pack­ag­ing
  • Use energy efficient
  • Only wash full loads this goes for the wash­ing machine, dish­washer and the tum­ble dyer

Next week I am cov­er­ing female prod­ucts and make-up :)   Sorry I haven’t been around so much uni has me all tied up.



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3 Comments

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  1. By: Freya

    thanks for the tips, regard­ing the com­post­ing, you could have a wormery, thats what I have, they don’t take up any room, and they eat every­thing! plus they make really good com­post!
    xxxx
    (Freya´s last blog ..Get­ting on the wagon)


    (Reply)

  2. Well yeah if you keep the water run­ning it’s not too good. That’s why you fill up the sink with soap and water and then wash all the dishes in the clean soap water then dry them off. Dish­wash­ers are a com­pletely unnec­es­sary and waste­ful appli­ance. Most peo­ple just don’t know how to wash dishes and are waste­ful when they wash dishes. Who­ever wrote that arti­cle really needs to dou­ble check their research.

    As far as pets are con­cerned, it’s really best for them to go out­doors. Nat­ural fer­til­izer plus then you don’t worry about lit­ter at all. How­ever, in some cases (even my own) it’s not always real­is­tic. I just thought it should be men­tioned, too. I have been on the prowl (no pun intended) for the per­fect cat lit­ter.
    (Caity´s last blog ..Snip­pets of the day!)


    (Reply)
    1. By: Damita

      @Caity, totally agree with you about pets that they should go out­side, I wish mine could but this busy road is just too scary and I am wor­ried they will get run over.

      Also I think it depends on the energy rat­ing of the dish­wash­ers because the new A ones are bet­ter in the­ory, I don’t have one at the moment as they cost a lit­tle too much, agree with you that alot of peo­ple don’t know how to wash dishes, I think it also comes up between time sav­ing and hand washing.

      @Freya, really? Ooooh I should totally try that :)


      (Reply)

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Author

Hello there! Wel­come to my lit­tle cor­ner of the inter­net. My name is Damita , I am a mar­ried 24 year old stay at home wife and com­puter sci­en­tist who is pas­sion­ate about being fru­gal and green. I live in Eng­land with my hus­band and three cats, want to know more? or check out the blog­ging schedule?

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