Whiteburn's Wanderings

One man's wanderings backpacking around Scotland plus the odd digression

More Cosy Cooking

As mentioned in a post Cosy cooking, sometime ago, I’m a firm believer in using a Pot Cosy to help save fuel; particularly with using home dehydrated meals where simmering for at least 20mins would be necessary to get the food rehydrate properly, even cooking up a simple pasta requires simmering for say 10mins.

I’ve also found additional benefits of using a cosy; it keeps the food hot while it’s being eaten & it stops soot (from using an alcohol stove) from contaminating me, sleeping bag, pack, etc.

I’ve been using a cosy made from an old 8mm CCF mat for over 2 years now, it’s still OK & performs well even in the middle of winter.  However the question came up as to whether there was any benefit of using one in the summer OR whether improvisation would suffice?

Well to long & the short of it is that I thought I’d spent the afternoon ‘playing in the shed’ to try & establish some facts by running some tests.

The tests:

Quite simple: Evernew 1L Pasta Pot with 500ml of water brought to the full rolling boil, removed for the heat & the temperature measured after 15 & 30 mins; air temperature in the shed was 8 – 9 C with little air movement.

Test #1 – a baseline test with no insulation & the pot just sat on the bench.

Test #2 – same as 1# but with a hat loosely placed on the top of the lid.

hat

Test #3 – Pot placed inside a plastic carrier bag.

Plasy bag

Test #4 – Double thickness full reflectix cosy.

IMG_0255

Test #5 – 3mm CCF (flooring underlay) part cosy + hat placed on the lid.

3CCF

Test #6 – 8mm CCF full cosy.

IMG_0254

Results:

Temp C
Wt 15mins 30mins
Non 0g 75 60
Hat 0g 77 65
Plastic Bag 11g 82 70
Double Reflectix 41g 85 76
3mm CCF + hat 24g 85 76
8mm CCF 47g 90 80

The results are only comparative/ illustrative & not absolute, cooking up in a tent vestibule is likely to be draftier & perhaps a lot colder, hence the temperature drop will higher & the difference between the tests more marked.  Two of the results surprised: firstly how well a simple carrier bag works (& would perform even better if the pot had been placed on a sit mat); secondly that the 3mm CCF part cosy + a hat on the lid performed equally as well as the twin thickness Reflectix.  There’s lot’s of variations that can be employed to improvise a cosy like using spare clothing or even sleeping bag to help insulate a pot, personally I’m usually wearing any spare clothes soon after pitching up & I’d be a bit paranoid about using by bag (I may even be in it).

So what use am I going to put the information to?  Well I’m going to switch to using the 3mm CCF cosy during the summer as it saves a little bulk as well as 23g , if I have a bag handy (i.e pack liner) I’ll employ that in addition; I’ll still use the 8mm CCF cosy in winter but if it needs replacing I’d probably just knock one up from thinner 5 – 6mm CCF mat (I’ve seen cheap 5mm foil faced ones, which would seem ideal).

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Information

This entry was posted on April 26, 2015 by in Food, MYOG and tagged , , .
justanothertrail

One man's wanderings backpacking around Scotland plus the odd digression

The Mountain's Silhouette

One man's wanderings backpacking around Scotland plus the odd digression

Nielsen Brown Outdoors

experiencing the outdoors wherever we are

Must Be This Way

Chat about backpacking, trekking and hiking

Daunerin' Aboot

Ian Sommerville's writing and photography

OutdoorsMH

One man's wanderings backpacking around Scotland plus the odd digression

alan sloman's big walk

One man's wanderings backpacking around Scotland plus the odd digression

secretmountain.co.uk

One man's wanderings backpacking around Scotland plus the odd digression

Land Matters

........ the blog and website of Andy Wightman

blogpackinglight

another backpacking blog

One man's wanderings backpacking around Scotland plus the odd digression

cairngormwanderer

Wandering in the Cairngorms and other lesser ranges, by Neil Reid

ness64

Hillwalking and Backpacking Trips in the Scottish Highlands

Section Hikers Backpacking Blog

Hiking and Backpacking for Beginners and Experts

%d bloggers like this: