Win a copy of Permaculture Design Companion this week in the Permaculture Design forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education experiences global resources the cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Nicole Alderman
  • r ranson
  • Anne Miller
  • paul wheaton
stewards:
  • Jocelyn Campbell
  • Mike Jay Haasl
  • Burra Maluca
garden masters:
  • James Freyr
  • Joylynn Hardesty
  • Steve Thorn
  • Greg Martin
gardeners:
  • Carla Burke
  • Dave Burton
  • Pearl Sutton

Cooking with hot rocks. Conducting tests, Incorporating cooking rocks into masonry stove.

 
master pollinator
Posts: 8704
Location: Victoria British Columbia-Canada
712
  • Likes 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I did some cooking on a hot rock today,  and I've decided that hot rocks will be the perfect addition to my rocket kitchen.

I intend to use hot rocks in combination with my cooktops, for quick and even grilling.

I'm using blueschist, a very fine grained and smooth metamorphic rock.

 Steaks,  French toast, grilled cheese and other items that are cooked on the grill , can be done quickly and easily,  using a hot rock on top. This of affords very quick, and even heating.

A nice hot rock is the perfect trivet for pots that are brought to the table.
..........
French toast takes less than three minutes.
20150126_110957.jpg
[Thumbnail for 20150126_110957.jpg]
20150126_122620.jpg
[Thumbnail for 20150126_122620.jpg]
 
Dale Hodgins
master pollinator
Posts: 8704
Location: Victoria British Columbia-Canada
712
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I heated to the rock to 500 degrees F. It took four minutes to make grilled cheese.
20150128_193005.jpg
[Thumbnail for 20150128_193005.jpg]
20150128_193044.jpg
[Thumbnail for 20150128_193044.jpg]
20150128_193647.jpg
[Thumbnail for 20150128_193647.jpg]
 
Dale Hodgins
master pollinator
Posts: 8704
Location: Victoria British Columbia-Canada
712
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Even the cheese that was melted directly on the rock was able to be cleaned up pretty well with the bread. It's similar to cooking on cast iron.
20150128_194321.jpg
[Thumbnail for 20150128_194321.jpg]
20150128_194400.jpg
[Thumbnail for 20150128_194400.jpg]
20150128_194416.jpg
[Thumbnail for 20150128_194416.jpg]
 
Dale Hodgins
master pollinator
Posts: 8704
Location: Victoria British Columbia-Canada
712
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The cold,mashed potatoes were spread thinly on a preheated plate. It took three minutes to heat them with the hot rock.
20150128_193503.jpg
[Thumbnail for 20150128_193503.jpg]
20150128_194151.jpg
[Thumbnail for 20150128_194151.jpg]
20150128_194848.jpg
[Thumbnail for 20150128_194848.jpg]
 
Dale Hodgins
master pollinator
Posts: 8704
Location: Victoria British Columbia-Canada
712
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Everything went well until I tried cooking eggs. They are not suited to the size of rock that was used. I made a mess.
20150128_200017.jpg
[Thumbnail for 20150128_200017.jpg]
20150128_200135.jpg
[Thumbnail for 20150128_200135.jpg]
20150128_200528.jpg
[Thumbnail for 20150128_200528.jpg]
 
steward
Posts: 4618
Location: Zones 2-4 Wyoming and 4-5 Colorado
441
hugelkultur forest garden fungi books bee greening the desert
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Dale, Many years ago my family used to go to mountain man gatherings. One year there were a couple of ladies who demonstrated how native americans would cook soup using hot rocks that were dropped into an animal stomach filled with water etc. It was awesome.

This guy shows how to boil water using stones.

https://www.youtube.com/watch?v=E_yTjl4N2Ls
 
pollinator
Posts: 1703
Location: Western Washington
22
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Not that many would care but there is old Mongolian Marmot recipe which basically involves catching, skinning, and cleaning a marmot; stuffing its cavities with hot rocks, and then wrapping it back up in its own skin to steam. Sound pretty good. Maybe toss an onion or some garlic in there?
 
Dale Hodgins
master pollinator
Posts: 8704
Location: Victoria British Columbia-Canada
712
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Sounds like a miniature version of haggis.

I probably won't make soup,  with hot rocks. I could see tossing one in from the oven to heat soup when the stove is not being fired.
.............
Tonight, I cooked turkey. As I listened to it sizzling on the rocks, I knew that I must once again suffer for my art.
20150129_223741.jpg
[Thumbnail for 20150129_223741.jpg]
20150129_223953.jpg
[Thumbnail for 20150129_223953.jpg]
20150129_224054.jpg
[Thumbnail for 20150129_224054.jpg]
 
Dale Hodgins
master pollinator
Posts: 8704
Location: Victoria British Columbia-Canada
712
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
These rocks were heated to 600F.

Concave rocks would make this much easier. Larger rocks would be much better as well.

After frying the pieces of meat on separate rocks, I piled it all together and then put the rocks on top of one another.

If you lean in, you can smell it and hear it sizzle. Close your eyes.

I'm feeling carnivorous.
20150129_224502.jpg
[Thumbnail for 20150129_224502.jpg]
20150129_224726.jpg
[Thumbnail for 20150129_224726.jpg]
20150129_233002.jpg
[Thumbnail for 20150129_233002.jpg]
 
Posts: 1444
Location: Fennville MI
42
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Just have some care with regard to which rocks you use. Not all minerals are healthy and some rocks can blow up when heated (steam explosion, essentially).

There is real potential in this vein, but some pitfalls to be wary of too.
 
Dale Hodgins
master pollinator
Posts: 8704
Location: Victoria British Columbia-Canada
712
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Good point, Peter.

Before deciding to use schist, I looked up the constituents and it doesn't seem to be an ore for any sort of heavy metal.

I'm going to try a forum that deals with geologic issues and see what they think.
............
Here is my partially built masonry stove. The heat riser will be capped with a flat rock.
https://permies.com/t/43542/rocket-stoves/Dale-Rocket-Powered-Mass-Heater

It's in full burn in all of these photos. It only smoked and steamed when first fired.
20150120_121300.jpg
[Thumbnail for 20150120_121300.jpg]
20150121_143721.jpg
[Thumbnail for 20150121_143721.jpg]
20150121_152713.jpg
[Thumbnail for 20150121_152713.jpg]
 
What are you doing? You are supposed to be reading this tiny ad!
A rocket mass heater heats your home with one tenth the wood of a conventional wood stove
http://woodheat.net
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!