[pct-l] Cooking with canned gas

[Jim Marco]

Well, that is entirely up to you.
Stoves boiling performance, ie fuel/amount boiled varies with the flame level. Reducing wasted heat, out the sides and top, will change the numbers drastically. Low heats are more efficient than high heats from various stoves. Too low will waste more heat out the pot. About 7-10 minutes per 2 cups is about right. Heat shields should always be used, but with canisters, be careful not to overheat them. Cozies (your hat) should be used for any simmering, turning your stove off. Always start with water in the pan, never just snow else things will taste funky. 
I get about 1oz (24gm) fuel per day for two liters per day (one in the morning and one at night). Or around 8-9 liters per canister and around 17-21 liters per 240gm canister. A lot will depend on your starting temp (water and air.) A 120gm canister will last me about 4 days. An 240gm canister will last about 9-10 days.  
A lot will depend on the type of stove, topper or remote. Toppers are never quite as efficient as remotes...you cannot close them as tight in a wind screen and they start losing some heat at <40F. HE pots are slightly better than non-HE pots. Remotes(inverted) weigh a bit more but have consistent heat down to about 25F. Lower, but they require a 2-4gm prime. Canisters weigh close to the same as the fuel they contain for 110/120gm canisters or about 3.7oz. Larger 240gm canisters weigh about 5.5-6oz. Cheap Coleman canisters often lead to plugging up of a remote inverted stove. Have a tool handy. 
For 2 cup boils, you should get about 16-18 boils iff you follow the above guidelines. I have seen some people get as few as eight 2cup boils. (My hiking partner uses a JetBoil with no windscreen and no pot lid - lost.) He didn't care because he never heads out for more than two nights.
You should always carry a spare canister. I have had several that do not reseal properly. Temperature? Dust? 
	My thoughts only . . .
		jdm 
 
 

-----Original Message-----
From: pct-l-bounces at backcountry.net [mailto:pct-l-bounces at backcountry.net] On Behalf Of Bob Bankhead
Sent: Tuesday, March 25, 2014 9:53 PM
To: tsparks56 at aol.com; pct-l at backcountry.net
Subject: Re: [pct-l] Cooking with canned gas

>From experience, with an adequate windscreen in place, I average the
following number of boils of 1 liter of cold water per canister:

4 oz. net gas canister = 6+
8 oz. net gas canister = 13

These results were obtained at elevations of 4,000 to 10,000 feet. Remember that water boils at lower temperatures as altitude increases.

212°F at sea level
208° at 2,000 feet
204° at 4,000 feet
200° at 6,000 feet
197° at 8,000 feet
193° at 10,000 feet
190° at 12,000 feet
> 12,000 feet ......why are you camping this high along the PCT? Are you
sure you're not on the CT or the CDT by mistake? Walk high; sleep low.



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