Off-Grid Cooking: Gas, Fire & Alternatives

When you’re parked in remote spots without power hookups, cooking becomes both an adventure and a necessity. Whether you’re boondocking in the Pilbara or free camping along the Nullarbor, mastering off-grid cooking keeps you fed, saves money, and opens up camping possibilities far from caravan parks.

The key is understanding your options and having backup methods. Gas cooktops are reliable workhorses, campfires add atmosphere and versatility, while solar ovens and portable induction units offer surprising alternatives for the well-equipped traveller.

Setting Up Your Gas Cooking System

Gas remains the most reliable off-grid cooking method. Start by installing a two-burner cooktop in your caravan kitchen if you don’t have one already. The Dometic ORIGO 6000 Spirit (~$680) or Thetford Spinflo Triplex (~$450) are solid choices that handle everything from morning coffee to full roast dinners.

Connect your cooktop to 9kg gas bottles for extended trips. Two bottles give you roughly 6-8 weeks of cooking for a couple, depending on usage. Install an automatic changeover valve (~$120) so you never run out mid-meal. The Truma MonoControl CS does this job perfectly and includes a gas level indicator.

For external cooking, a portable twin burner gives you extra capacity and keeps heat out of the van. Set it up on a stable table with wind protection. The Gasmate Twin Burner (~$180) handles big pots and has excellent flame control.

Test your entire system before departing. Check all connections with leak detector solution, ensure regulators are working correctly, and verify your changeover valve switches properly. Replace any rubber components over five years old.

Building and Using Cooking Fires Safely

Campfire cooking adds flavour impossible to achieve with gas, but requires preparation and respect for fire restrictions. Before lighting any fire, check current restrictions through your state’s emergency services website. Total fire bans mean no fires, period.

Build cooking fires in established fire rings where available. If creating your own, clear a 3-metre circle down to mineral soil, removing all flammable material. Surround the fire area with rocks to contain embers. Never build fires under overhanging branches or near dry grass.

Use hardwood for cooking fires, not softwood. Red gum, ironbark, and mallee burn clean and create excellent coals. Avoid pine, which burns too fast and can impart unpleasant flavours. Collect dead wood from the ground rather than breaking branches from living trees.

Start with kindling and gradually add larger pieces. Let the fire burn down to a bed of glowing coals before cooking. Coals provide even, controllable heat without flames that blacken your cookware.

Invest in proper fire cooking equipment. Cast iron camp ovens distribute heat evenly and improve with use. A tripod lets you adjust cooking height over coals. Long-handled utensils keep your hands away from heat.

Solar Cooking: Free Energy from the Sun

Solar cookers harness Australia’s abundant sunshine for fuel-free cooking. They work best in clear conditions with ambient temperatures above 20°C. Solar cooking takes longer than conventional methods but uses zero fuel and produces no emissions.

Parabolic solar cookers concentrate sunlight to achieve temperatures around 180°C. The SolSource Sport (~$350) focuses sunlight into a cooking pot and reaches temperature quickly. Position it to track the sun and adjust every 30 minutes for optimal performance.

Box cookers use greenhouse principles to trap heat. The Sun Oven (~$450) reaches 160°C and holds temperature well, making it excellent for slow-cooked meals. Dark pots with tight-fitting lids work best in box cookers.

Start solar cooking mid-morning when sun angle and intensity are optimal. Foods that benefit from slow, even heating work wonderfully: rice, stews, roasts, and bread. Cooking times are roughly double conventional methods, so plan accordingly.

Position solar cookers away from shade and wind. Even partial shade dramatically reduces cooking temperature. Use a small mirror or reflective surface to direct additional sunlight into the cooker for faster results.

12V and Induction Alternatives

Modern electrical cooking options work well with substantial battery systems and inverters. Pure sine wave inverters rated at 2000W minimum handle most induction cooktops and electric kettles without issues.

Portable induction cooktops use roughly 1800W on high settings but offer precise temperature control impossible with gas. The Brentwood IC-1800 (~$120) runs efficiently and fits in most caravan cupboards when not in use.

Calculate power consumption carefully. An hour of induction cooking at medium power draws roughly 150Ah from your battery bank. This works fine with 400Ah+ lithium systems and adequate solar charging but quickly depletes smaller setups.

Direct 12V cooktops avoid inverter efficiency losses but cook more slowly. The Companion 12V Cooktop (~$280) draws 180W and works well for simple meals and reheating. Cooking times are roughly triple compared to high-powered alternatives.

Electric kettles designed for caravans heat water efficiently. The Kampa Zebo 12V Kettle (~$45) draws 120W and boils 700ml in about 8 minutes. Much faster than heating water in pots.

Emergency and Backup Cooking Methods

Murphy’s Law applies strongly to remote camping. Gas bottles empty unexpectedly, inverters fail, and fire restrictions change without warning. Smart travellers carry multiple cooking methods and emergency alternatives.

Solid fuel tablets provide emergency cooking when everything else fails. Esbit tablets (~$15 for 20 tablets) burn hot enough to boil water and heat simple meals. They work in any weather and store indefinitely without deteriorating.

Portable butane stoves use small cartridges and work reliably in windy conditions. The Iwatani Slim (~$65) folds flat and provides decent heat output for emergency cooking. Cartridges cost about $4 each and last several meals.

Alcohol stoves burn methylated spirits and work silently without moving parts. Simple DIY versions made from aluminium cans cost nothing and provide backup cooking indefinitely. Meths is available at hardware stores everywhere.

Kelly kettles use small amounts of wood, paper, or twigs to boil water rapidly. The Ghillie Kettle (~$120) boils 1.5 litres in 5 minutes using whatever combustible material you can find. Excellent for morning coffee when gas is low.

Common Off-Grid Cooking Mistakes

Running out of cooking fuel tops the list of preventable problems. Gas consumption varies enormously with weather, cooking styles, and equipment efficiency. Cold weather increases gas usage substantially, while wind wastes enormous amounts of fuel.

Overestimating solar cooking capabilities leads to frustration and hungry travellers. Solar ovens need direct sunlight and work poorly on cloudy days. Always have backup cooking methods available when relying on solar equipment.

Inadequate fire safety preparation causes dangerous situations. Many travellers underestimate how quickly bushfires spread or fail to properly extinguish cooking fires. Never leave fires unattended, even briefly.

Using incorrect cookware wastes time and fuel. Lightweight aluminium pots heat unevenly over fires and warp easily. Invest in quality cast iron or heavy-based stainless steel for consistent results.

Insufficient power planning makes electric cooking impractical. Induction cooktops draw enormous current and quickly flatten battery systems. Calculate your actual power budget before investing in electric cooking equipment.

Forgetting about altitude effects causes cooking problems in elevated areas. Water boils at lower temperatures above 1000m, extending cooking times for pasta, rice, and other boiled foods. Adjust recipes and timing accordingly.