Fire in the beer can

Fire in the beer can

In my search on the Internet for alternative cooking appliances, I happened to stumble on this little gem made from two aluminium drink cans. It appears to be doing the rounds and there are many variations out there.
I have adapted what I think is the best version, taking into consideration the raw materials available in New Zealand. I have also converted all measurements to metric. I first tried it out because I was honestly skeptical that it would work as efficiently as some claim it does. It took about 20 minutes to make and yes, it does work very, very well. I am extremely impressed with the results. Once it was alight, I managed to boil 400mls of cold water in two and a half minutes. When you see the price of camping stoves in the shops, you realise what a huge saving this could be. You need two empty aluminium cans. Either soft drink or beer cans will do. The narrow ones that some energy drinks come in are a tad on the small side for this project. Scribe a line completely around each can 30 mm up from the base. Cut along this line with an ordinary pair of scissors. The idea is that the bottom section of one can forms the base of your stove. From the other can use the bottom section (because the top has a hole in it) and simply push it over the first base, forming a container. The base can needs to be crimped slightly to enable the top can to slide snugly over. I found that the tips of a pair of side cutters did this crimping nicely but make sure you do not actually cut the metal. On the base of one can, mark 16 equally spaced points with a pencil around the rim. Gently press the scriber point into the metal at each of these marks to make a locating point for your hole-forming “tool”.

Scribe the bottom of the can around 30mm up. A matchbox comes in handy

The finished "stove" — The finished “stove”

Using a darning needle in a pin chuck
or suitable holder, carefully make 16
holes. These holes want to be about
0.5mm in diameter, but consistency
is more important than actual dimensions.
In the recessed surface of
this can, drill a 6mm hole slightly off
centre. This will form the filling hole.
It is off-centre to allow for a small
amount of fuel to remain in the central
depression for initial lighting. Press the drilled top unit over the base unit and squeeze them together. This can be a bit tricky but it is worth spending time to get it right. I placed them in a wood vice and wound it in gently to get things even. Take care not to go too far.
To contain the stove safely it is advisable to place it in another suitable container. A small tuna can or similar is ideal.
Fill the stove with methylated spirits until it is about three-quarters full. You will have to judge this by weight until you get used to it. The stove will hold around 60mls of meths. Place a ten-cent coin over the filling hole then pour a small amount of fuel in the top depression.
Light the meths and wait for the heat from the burning fuel to pressurise the meths inside the stove. When it does, the jets of flame will start to come out of the small holes made with the needle.
Support a cooking pot about 50 mm above the top of the stove by making a stable frame for it such as a trivet. I formed 5mm mild steel rods into U shapes hinged by 15m copper tubing. I held the legs in a vice to crimp the copper on. Bricks would do as a pot support and a windbreak feature would be an ingenious addition. Now sit back and wait until it boils. It really is that simple and truly one of the most efficient heating devices I have ever seen.
This is a great little project for a wet winter day and one you could do with the kids, though remember you are dealing with fire and it is NOT a toy. Give it a whirl…you’ll enjoy it. It is also a great addition to the household emergency kit that Civil Defence is always urging us to have. Last but not least, there is the warm glow you will acquire knowing that you are both recycling cans AND saving the planet from yet another disposable butane cylinder.

Revving up Island-style

28 May 2026

As you can imagine, on Great Barrier Island, the population is likely to have more than its share of characters, given the island’s remote location. Part of the charm is its lack of power supply and absence of a supermarket. If something breaks, there’s not likely to be a spare part sitting on a shelf anywhere on the Island, so if you don’t want to wait or to pay hefty freight charges on top of the cost of the part, you make one or use real no. 8 wire ingenuity. Even though it is New Zealand’s fourth largest island (after the North, South and Stewart Islands) and is only a half-hour flight from Auckland, it’s like a different world, and that’s why the locals love it.

The Shed magazine June/July 2026 issue 127 on sale now

24 May 2026

Murray Belfield is a phenomenon
He has built a few planes over the years, but none gave Murray the performance and thrills he really wanted until he built his scaled-down German paratrooper’s plane, a Storch. Building this rarest of planes consumed nine years of this 86-year-old’s life. And the result? He couldn’t be happier.
For most of us, stalking a deer across the back country, shooting it cleanly and lugging it home to furnish the table would be accomplishment enough for any evening’s bragging rights.
But when that involves landing an aeroplane you built in your shed onto a handkerchief-sized patch of hilltop scrub, finding and shooting the quarry, manoeuvring the carcase into the spare seat and getting off the ground again, and doing all that at the age of 86, bragging just vanishes in the slipstream. Murray Belfield is, anyway, far too practical and busy a guy to waste his evenings boasting to his mates, but he is, nevertheless, a phenomenon. His plane, the second he has built by hand, is another. Highly specialised for short take-offs and landings (STOL), it is a three-quarters-scale replica of a WWII flying legend, the Fieseler Storch.
The replica, designed by famed aircraft engineer Ladislao Pazmany, is so challenging to build that, to Murray’s knowledge, only one other Pazmany model has been completed to the flying stage, by an enthusiast in Alaska. As if that wasn’t a hard enough ask, Murray has incorporated many improvements of his own based on his many years of bush flying experience (and his dislike of fibreglass).

In the dining room shed

22 May 2026

Jane Allnatt’s father was a commercial artist, a painter, model-maker and did a bit of carving, so there’s something of the family tradition in what Jane Allnatt is doing in working with wood. But it’s unlikely her father imagined her designs and creations coming out of a shed in the dining room.
Working on a sheet on the floor of a room in her house is the Howick resident’s “workshop” and preferred way of creating work. Yet that work has regularly taken prizes in various categories at the annual National Woodskills Festival at Kawerau, a central gathering place of woodturners and sheddies.
It is also unlikely you would find many men praising the convenience of their working space because, as the sculptor puts it, “the room is centrally placed and I can disappear to cook dinner or if there is any washing, I can do that. The light is good, too.”

Fire in the beer can