How well do different mugs keep your drinks hot?downloads.rtmedia.com/mug_for_life/travel_mug...How...

How well do different mugs keep

your drinks hot?

By: mug for life®

21 January 2012

Please note: Our experiment was carried out in a home kitchen and not laboratory conditions. It was performed by our team members who did their best to make sure everything was as consistent and accurate. Please use the results as a guide to how well each mug keep drinks warm.

Temperature retention of the original mug for life against disposable and porcelain mugs. PAGE 1

The three mugs we tested:


The original mug for life® A double walled, thermal, BPA free, polypropylene plastic mug. Weight approx. 240g, holds 12 fl. oz. / 355 ml.£12.99 +P&P from Amazon: http://www.amazon.co.uk/gp/product/B004W0HOWG

Ceramic / Porcelain mug.

A double-walled, thermal,

porcelain mug with silicone

lid. Weight approx. 454g,

holds 10 fl. oz. / 250 ml.£12.95 inc. P&P from Amazon: http://

www.amazon.co.uk/dp/B004NSI9S0

Disposable Cardboard Mug from Costa. A wax-backedcardboard cup with plasticlid. Weight approx. TBCg,holds 12 fl. oz. / 355 ml.

http://www.amazon.co.uk/gp/product/B004W0HOWG










http://www.amazon.co.uk/dp/B004NSI9S0









Experiment setup:

Our aim was to measure the thermal properties of different mugs to keep drinks hot. To see if the mugs for life® were any better than regular disposable coffee shop mugs or the porcelain ones. We repeated our experiment under the same conditions for each mug and recorded our data using time-lapse photography, a digital thermometer (Accuracy within 1˚C), and an iPhone 4S.

We measured the temperature change of the hot water in each mug over a period of 1.5 hours. We boiled water and added straight into each mug and sealed the lids. Then using the digital thermometer and a time-lapse photo application we could monitor the reduction in degrees over the 1.5 hours.

We ensured that each mug was filled with the same volume of boiling water and that the starting temperature of each empty mug was the same (room temperature). They were kept in the same position and distance from the window in the kitchen.


Thermometer position:

With limited access to the water inside the mug (through only the drinking hole) this meant that the temperature reading was from the outer edge of the water inside the mug. Ideally we would have liked to measure the center, but the probe is ridged. The metal temperature probe is 125mm and therefore was suspended about 5cm from the bottom of the mug (around where the rubber sleeve ends).

We ensured that in the disposable and porcelain mugs the position was also consistent. Against the side and 5cm from the bottom of each mug.

Unfortunately the thermometer had an auto power switch off. So we had to turn it back on every so often. We did our best to not move the position or disturb the water inside. This was quite easy as the rubber buttons on the front were easy to use.


Temperature reduction over 90 minutes:

Time (in minutes)

mug for life® Porcelain Mug Disposable Cardboard Mug

1 90.3 90.5 90.92 88.8 88.6 89.23 87.6 87.2 87.64 86.5 84.9 86.15 85.6 83.2 84.96 84.8 81.8 83.47 83.9 80.5 82.18 83.1 79.5 81.29 82.5 78.4 79.6

10 81.5 77.5 78.511 80.9 76.3 77.312 80.1 75.3 76.213 79.3 74.2 75.214 78.6 73.1 74.115 77.9 72.2 73.116 77.2 71.1 72.117 76.5 70.2 71.218 75.9 69.4 70.319 75.3 68.7 69.420 74.6 67.8 68.521 74 67.1 68.222 73.9 66.3 67.323 72.8 65.7 66.324 72.1 65.0 65.425 71.5 64.3 64.726 70.9 63.6 63.927 70.4 62.9 63.128 69.8 62.2 62.629 69.2 61.7 61.930 68.7 61.0 61.131 68.1 60.4 60.532 67.5 59.8 59.733 67.1 59.2 58.834 66.5 58.7 58.235 66 58.1 57.636 65.5 57.6 56.837 65 57.0 56.238 64.5 56.5 55.539 64 56.0 54.940 63.5 55.5 54.641 63.1 54.9 5442 62.5 54.5 53.443 62.1 54.0 52.944 61.6 53.5 52.3


Time (in minutes)


45 61.2 53.1 51.846 60.8 52.6 51.347 60.3 52.2 50.948 59.9 51.8 50.349 59.5 51.3 49.950 59 50.9 49.451 58.5 50.4 48.952 58.2 50 48.553 57.8 49.6 48.154 57.3 49.2 47.955 56.9 48.9 47.956 56.5 48.4 47.557 56.2 48.3 46.958 55.8 48.1 46.359 55.4 47.6 45.960 55 47.2 45.261 54.6 46.8 44.962 54.3 46.3 44.363 54 45.9 43.964 53.5 45.5 43.465 53.1 45.2 43.266 52.8 44.9 42.967 52.7 44.5 42.468 52.2 44.2 42.169 51.9 43.9 41.870 51.6 43.6 41.471 51.2 43.3 41.172 50.9 43.0 40.873 50.6 42.8 40.574 50.3 42.4 40.275 50 42.2 39.976 49.7 41.9 39.777 49.5 41.5 39.378 49.1 41.3 39.279 48.8 41.1 38.980 48.5 40.8 38.781 48.2 40.5 38.382 48 40.2 38.183 47.9 39.9 37.984 47.9 39.7 37.885 47.8 39.5 37.486 47.8 39.2 37.287 47.7 39.0 36.988 47.6 38.8 36.789 47.6 38.5 36.490 47.5 38.1 36.1


What is the best temperature to drink coffee?

Searching the web for the best temperature for hot drinks we found this helpful post: http://chugginmccoffee.hubpages.com/hub/What-Is-The-Best-Temperature-For-Coffee

It recommends drinking between 70˚C and 80˚C.

And this post: http://hypertextbook.com/facts/2003/DianaGendler.shtml talked about the best temperature to brew your coffee. Recommending between 88˚C and 93˚C.


0

10

20

30

40

50

60

70

80

90

100

1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86

˚C

Time in minuets


Optimum drinking temperature

http://chugginmccoffee.hubpages.com/hub/What-Is-The-Best-Temperature-For-Coffee




http://hypertextbook.com/facts/2003/DianaGendler.shtml




So we have highlighted the optimum-drinking-temperature for each mug and how long they managed to keep the liquid at that ‘optimum’ temperature.

mug for life® 16 mins in the 80˚C to 70˚C bandPorcelain Mug 11 mins in the 80˚C to 70˚C bandDisposable Cardboard Mug 9 mins in the 80˚C to 70˚C band

How long did it take to drop below 50˚C?

We believe that drinks are still quite ‘drinkable’ at 50˚C so we took this as another indication of good performance.

mug for life® 75 mins to drop below 50˚CPorcelain Mug 52 mins to drop below 50˚CDisposable Cardboard Mug 49 mins to drop below 50˚C

mug for life® keeps your drink hotter for longer; 26 minutes longerthan the Disposable Cardboard Mug (that’s 53% longer) and 23 minutes longer than the Porcelain Mug (that’s 44% longer). The most surprising result was that the Porcelain Mug was only 3 minutes better than the Disposable Cardboard one!

The mug for life® also keeps your liquid at the optimum temperature: (80˚C to 70˚C) for 78% longer than the Disposable Cardboard Mug and 45% longer than the Porcelain Mug!

Yes, of course we are really thrilled that the mug for life holds up totemperature retention test! Also we are proud that we have carried out this test in a unbiased way (we believe we were rigorous in our methods).

Please help us:


If you know of any retailers who would like to find out how they can stock our great mugs then please ask them to email us at [email protected]

More about mug for life®

• Re-usable double walled insulated mug• Made from BPA free polypropylene• Rubber grip with mug for life Brand• The alternative to disposable paper cups• 1 Tree planted for every 10 sold

Product Dimensions: 10 x 10 x 15.5 cmBoxed-product Weight: 240 gItem model number: MFL001ASIN: B004W0HOWGDate first available at Amazon.co.uk: 10 April 2011Average Customer Review: 5.0 out of 5 stars See all reviews (5 customer reviews)

I am the first, the one, the only, the Original Mug For Life...together we will make a difference

Use me and reuse mebut don't abuse me,fill me with your favourite drinktogether we'll make a difference and make people think.

If you're a conscientious coffee, tea or hot chocolate lover, I will be the new passion in your life.I am the vision of one but the desire of many. I have a purpose - to change the hearts and minds of thedisposable cup sinners and binners.

The coolest way to enjoy your favourite hot or cold drink?

Take me wherever you arehome or work or out in the car,when you relax, when you shopespecially to your local coffee stop.

I am dishwasher and microwave safe, but I'd prefer you not to use either.


mailto:[email protected]

mailto:[email protected]

I'd much rather you gave me a nice warm soapy hand wash and avoided the microwave all together.I am 15.5cm tall with a base that's 6cm across and a lid that's 10cm in diameterand I can hold almost 35cl.

I hope you'll grow to love me as much as you love what goes in me.

And now proven to keep your drink hotter for longer.

PLEASE NOTE: Sealing screw lid is designed to delay most spills from accidental tipping. And not intended to be spill or leak proof.

The mugs for life® have a great drinking lid; one that does not taste of silicon or plastic. Our customers rate this one of the best mugs all-round. Read this great review from a happy Amazon customer:

5.0 out of 5 stars Mug for life - Fab, 18 Jan 2012By Johnny - See all my reviewsThis review is from: The Original Mug For Life - BPA Free Eco Travel Mug

“I bought one for my daughter and my niece as Christmas gifts as they are Costa and Starbuck fans. I liked the mug too and ended up getting one in my stocking. Having this mug makes the journey to work much more comfortable. I have several of those thermal travel mugs but don't use them as I end up wearing the coffee! This mug is the perfect shape for cup holders and to drink from unlike those other travel mugs. I can take coffee to meetings (where they don't give us a drink) and so use it all the time. I asked Starbucks to put a drink in it today (takes a small (tall) latte/ coffee/ tea) and I am sure I got a reduction in the price as "Own Cup" came up on the till and the price dropped - I don't think I imagined it. I tried a plastic mug once before and the drink tasted of plastic but this one is fine. I am buying another today for my wife and loads of people have asked about it so I have directed them here. If you buy and drink coffee etc on the run - this could save you a shed load of money as you can fill it up with your own favourite drinks - I think I have saved about £20 in 3 weeks (not to mention the reduction in recycling)- Hmmm that's a lot of coffee so I am switching to decaf (some of the time).”


Additional info:

Environmental impact of paper cups:Source wikipedia: http://en.wikipedia.org/wiki/Paper_cup Most paper cups are designed for a single use and then disposal or recycling. A life cycle inventory of a comparison of paper vs plastic cups shows environmental effects of both with no clear winner.[10]

A study of one paper coffee cup with sleeve (16 ounce) shows that the CO2 emissions is about .11 kilograms (.25 pounds) per cup with sleeve - including paper from trees, materials, production and shipping.[11] The loss of natural habitat potential from the paper coffee cup (16 ounce) with a sleeve is estimated to be .09 square meters (.93 square feet).[12]

Over 6.5 million trees were cut down to make 16 billion paper cups used by US consumers in 2006, using 4 billion US gallons (15,000,000 m3) of water and resulting in 253 million pounds of waste.[13]

Very little recycled paper is used to make paper cups because of contamination concerns and regulations. Because most paper cups are coated with plastic, both composting and recycling of paper cups is uncommon.[13]

Although paper cups are made from renewable resources (wood chips 95% by weight), paper products in a landfill may not decompose, or may release methane if decomposed anaerobically. The manufacture of paper usually requires inorganic chemicals and creates water effluents.

Paper cups may consume more non-renewable resources than cups made of polystyrene foam (whose only significant effluent is pentane).[14][15] A number of cities—including Portland, Oregon—have banned XPS foam cups in take-out and fast food restaurants.[16]


http://en.wikipedia.org/wiki/Paper_cup

http://en.wikipedia.org/wiki/Paper_cup

PE is a petroleum based coating on paper cups that can slow down the process of biodegrading. PLA is a biodegradable bio-plastic coating used on some paper cups. PLA is a renewable resource and makes paper cups more compostable, whereas PE is not renewable and is not compositable.

Notes:

1. ^ "Waxed Paper Food Containers & Lids". Solocup.com. Retrieved 2007-06-09.2. ^ Kennedy, Garry: Apollo Glossary, Retrieved on June 9, 20073. ^ "Paper Products & Dispensers >>Cup Dispensers". Toiletpaperworld.com. Retrieved 2007-06-09.4. ^ Raloff, Janet (2006-02-11). "Wind Makes Food Retailers Greener". Science News.5. ^ a b "Dixie Cup Company History". Lafayette College Libraries. August 1995.6. ^ John H. White (1985). The American railroad passenger car. Johns Hopkins University Press. p. 432. ISBN

0801827434.7. ^ Beulah France (February 1942). "Uses for Paper Cups and Containers". The American Journal of Nursing 42 (2):

154–156. doi:10.2307/3416163. JSTOR 3416163.8. ^ Lily-Tulip Cup Corporation, Springfield-Greene County Library, Springfield, Missouri9. ^ Savolainen, Antti "6" Paper and Paperboard Converting Papermaking Science and Technology 12 Finland: Fapet OY

pp. 170–172 ISBN 952-5216-12-810. ^ Hocking, M. B. (1 February). "Paper Versus Polystyrene: A Complex Choice". Science 251 (4993): 504–5. doi:10.1126/

science.251.4993.504. PMID 1784084911. ^ "Report of the Alliance for Environmental Innovation". edf.com. Retrieved Feb 6, 2008.12. ^ "ecological effects of a paper cup". ecofx.org. Retrieved Feb 6, 2008.13. ^ a b "Paper Cups = Unsustainable Consumption". aboutmyplanet.com. Retrieved Feb 6, 2008.14. ^ Don R. Hansen and Maryanne M. Mowen (2005). Management Accounting: The Cornerstone of Business Decisions.

Thomson South-Western. p. 503. ISBN 0324234848.15. ^ Chris T. Hendrickson, Lester B. Lave, and H. Scott Matthews (2006). Environmental Life Cycle Assessment of Goods

and Services: An Input-output Approach. Resources for the Future. p. 5. ISBN 1933115238.16. ^ M. William Helfrich & Justin Wescoat Sanders (2003-08-13). "The Coming Cup-tastrophe". The Portland Mercury.17. ^ Adman Y. Tamime and Richard K. Robinson (1999). Yoghurt: science and technology. Woodhead Publishing. p. 97.

ISBN 1855733994.


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