Galley alcohol, gas and diesel cookers/ovens

  • 11 Dec 2022 23:15
    Reply # 13021843 on 1195343

    I had a Ravia, which is very similar to a Maxie and changed to an Origo. Two things triggered the change. In the first incident, I was using two burners to cook, one low to simmer and one on high. I went into the cockpit for a moment  and was distracted by a passer by. When I went back to the stove, the simmering burner had blown out and had leaked a significant amount of metho. I don't know why I did not have a fire. 

    A friend had a fire, a leak developed in his stove at the back of the burners while the stove was in use. He was not aware of the leak and ended up with a fire under the stove and in the locker below. It consumed three extinguishers before it was out. Yes, of course he could have used water to extinguish it, but in the panic, he forgot.

    the result for me was a change to a two burner Origo. When an oven is needed, I use a two handled pot with a glass lid and an oven thermometer placed so I can see it. This  allows manual regulation of the temperature. The oven replacement system had not had much use but I am happy with it so far.

  • 11 Dec 2022 15:55
    Reply # 13021595 on 13021409
    Anonymous wrote:However, the boat environment is one of either fresh ocean air or bouts of air laden with mould spores and I would imagine, very few natural yeasts floating around. That might have an impact.

    Once it is going, I don't think the yeast and bacteria in your natural yeast are going to be affected by what is floating around. The only thing I can think of that would harm it is if you used bleach (or some other chemical) to treat your drinking water and used that for feeding your mix. Worth while saving rain water for that as one never knows what might be in water sourced from a marina or other tap water.

    Those who have studied these things have been surprised that the species of bacteria and yeast making up the highest numbers in a natural yeast mix are not prevalent in the environment, water or flour used to start the process. As the mix sours, it becomes more habitable for the yeast and bacteria we want and less so for the rest. It really is a magical process, a gift. As happens, the bacteria famous for sour dough bread taste is found in nature at the highest levels... in the human mouth. Yet I know of no one who spits in the natural yeast mix. I think we probably eat lots of the food that bacteria likes.

    The other thing that slows down (or may prevent) the formation of wild yeast is spiking the mix with baking yeast as it is the wrong species. I have also had AP flour kill off my mix... if you want white sour dough, use UB (unbleached) but I have had the most success with whole grain (as opposed to whole wheat) flours.

    Last modified: 11 Dec 2022 15:59 | Anonymous member
  • 11 Dec 2022 11:07
    Reply # 13021409 on 13021256

    Slightly off topic - do you think you'll be able to keep your sourdough going on the boat?

    I don't think that's off topic, I think it's a crucial question!

    I've only recently started making sourdough again and this time it's organic 100% wholemeal  fine-ground flour. So far it's very tasty, very nutritious... concrete. It lasts for ages though (as does concrete). Interestingly, as I eat so little, between baking sessions the sourdough plant is in and out of the fridge, by the range, out in the conservatory, back in the fridge... a big range of temperatures, so I think it should be feasible to keep the plant going on a boat. However, the boat environment is one of either fresh ocean air or bouts of air laden with mould spores and I would imagine, very few natural yeasts floating around. That might have an impact.

    Last modified: 11 Dec 2022 11:09 | Anonymous member
  • 11 Dec 2022 04:11
    Reply # 13021256 on 1195343

    Oh, well done.  I make my bread in my frying pan, but do sometimes miss having an oven.

    Slightly off topic - do you think you'll be able to keep your sourdough going on the boat?

  • 10 Dec 2022 15:03
    Reply # 13020769 on 1195343

    Got lucky and got the Origo 6000.

    Put it to the test resulting in “the perfect loaf”

    Steady 210-215 degrees Celsius  using Bio-ethanol 93%

    25 minutes to warm it up with the baking pot inside. 
    1,5 hours to bake a sourdough bread of 1700 grams  

    Came out perfect, tastes even better.

    Happy camper & bon appetit  



    7 files
  • 13 Jun 2021 09:24
    Reply # 10626827 on 1195343

    Water doesn't burn? Who knew?

  • 13 Jun 2021 00:32
    Reply # 10625105 on 10619885
    Anonymous wrote:We live in a (to put it mildly) risk-averse society!

    Insurance and lawyer run society... Insurance wants only to insure companies that can't be sued... lawyers are looking for new things to sue for. Or something like that.

    Note: not all insurance companies and not all lawyers

  • 12 Jun 2021 13:01
    Reply # 10622245 on 1195343
    Deleted user

    Ethanol evaporates about twice as fast as water so an ethanol/water mixture would SLOWLY self dilute.  But if you are starting with >90% ethanol, it would not become an issue for a long , long time.    Evaporation rates are functions of temperature, pressure and surface area.  Maybe if you buy the ethanol by the gallon and have an old, half filled jug sitting around for a season, it might significantly degrade? Otherwise, even a 80/20 mixture should remain portent if kept in any sort of closed container. 

    Personally, I never liked alcohol cookers due to the inherent problem of the low energy density of alcohol.  I used to call it the gallon for a gallon rule.  It took a gallon of alcohol to boil a gallon of water (being hyperbolic of course)

  • 12 Jun 2021 12:53
    Reply # 10622196 on 1195343
    Anonymous member (Administrator)

    I have noticed that too, Annie, when there is less than a quarter left in the canister. However, I have not connected it with the idea that the fuel has become weaker. The glass matting-like stuff in the alcohol canister appears to have a strong wick-effect and thus spreads the fuel around in this material. As the canisters is nearing empty, the wick material will naturally turn drier and the stove will burn with less intensity.
    I might be wrong, but this is my conclusion about it.

    It takes a real fool to produce a run-away alcohol fire in that stove. Still, I have a fire blanket at hand, in addition to my 5-litre cans of water.

    Arne

    PS: In the specs for the Origo, it says that a canister takes 1.2l alcohol. With my 1l-bottles, it is natural to only fill with one litre. This lets me sail Ingeborg on her ear without fearing fuel spill, even if my stove is not gimballed.

    Last modified: 12 Jun 2021 19:15 | Anonymous member (Administrator)
  • 12 Jun 2021 05:09
    Reply # 10619885 on 1195343

    There appears to be an element of truth in the burners getting cooler with time.  But only an element.  I have discovered that if I want to cook chips, they cook better over a recently- filled cannister than one filled a day or two previously.  I won't even hazard a guess as to why.

    Pol, you are reading the instructions on a cooker, produced in the 21st century in Europe.  If you read the safety instructions on a battery drill, you'd probably never use one of those, either.  We live in a (to put it mildly) risk-averse society!

       " ...there is nothing - absolutely nothing - half so much worth doing as simply messing about in junk-rigged boats" 
                                                               - the Chinese Water Rat

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