Tefal ONE CUP

kittenpea

Hi has anyone seen the tefal one cup on the tv this sounds like a fantastic idea but at £60 for the product are you really saving money - what is the life expectancy of the product and are you getting value for money - will they bring anything bigger out i.e a 2 cup product ?

Taadaa

Is this the kettle that lets you fill it up then you can indicate how many cups you are making and it only lets that amount into the boiling chamber, or a different one?

The best way to do it is to fill the cup up and put that amount into the kettle. Free and saves buying a new product.

It takes x amount of energy to boil y amount of water, so the only way to reduce energy consumption is to put less water in.

finc

We were thinking of buying this but read the reviews on amazon and decided against it. It doesn't seem to live up to the claims of hot water in the time it states.

We're going to wait until they've sorted out the technology then buy it.

Jonesya

finc wrote: »

It doesn't seem to live up to the claims of hot water in the time it states.

We're going to wait until they've sorted out the technology then buy it.

It's the electricity supply that's the problem - you physically cannot boil a mug of water, from cold, in 3 seconds from a standard 13A, 240V supply.

The science bit:
150ml mug of cold water at, say, 15 deg c.
To heat it to 99 deg c assuming no heat loss takes:
(99-15)*150*4.2= 52,920 Joules

240V 13A supply delivers energy at:
240*13 = 3120W or 3120 joules per second.

Minimum heating time: 52,920 / 3120 = 17 seconds!

EliteHeat

Jonesya wrote: »

The science bit:

150ml mug of cold water at, say, 15 deg c.
To heat it to 99 deg c assuming no heat loss takes:
(99-15)*150*4.2= 52,920 Joules

240V 13A supply delivers energy at:
240*13 = 3120W or 3120 joules per second.

Minimum heating time: 52,920 / 3120 = 17 seconds!

Took the sums right out of my mouth plus it is incredibly noisy.

Oliver27

This sounds like the kettle Roy has bought on Coronation street

mikekaren2

Just thought I would pass on my experience, I bought a one cup but have returned it for a full refund. It only produces water that is ok if you want to drink your tea as soon as it is made, within about 2 minutes it is tepid.

Here is a tip if like me you have a Braun Tassimo, if you put in the cleaning disk instead of a pod, you get realy hot water. This does not effect the taste as it is realy just a bar code to tell the Tassimo to pump hot water.

So I may just have saved you £60.00! If you find this usefull please think about tapping the thank you button, I've not had that done before.

Hope this info hels someone.

custardy

thats a great tip,i could never spend £60 on a kettle even though i drink way too much coffee!

ormus

it only boils to 95 degrees. thats how they do it in the time.
that last 5 degrees takes a lot of energy.

Stompa

It seems to me it's about 20 seconds before it's produced enough water to fill a mug:

http://www.hippyshopper.com/2007/08/video_review_te.html

tomslass

Unlike the Tefal One Cup, this one does produce water hot enought to brew a decent cup of tea and coffee.
I have both. The super kettle actually does what it says it will do.

http://www.superkettles.co.uk/html/technical.html