309°F converts to Gas Mark 2 for ovens and air fryers. This moderate temperature is ideal for slow baking, roasting vegetables, or cooking delicate dishes that require gentle heat. Whether you're using a traditional oven or an air fryer, knowing this conversion helps adapt recipes perfectly.
The Gas Mark system is commonly used in British ovens, with each mark representing a specific temperature range. Gas Mark 2 corresponds to 300°F (149°C) to 325°F (163°C), making 309°F fall neatly within this bracket. When using an air fryer, you might need to adjust cooking times slightly as they heat faster than conventional ovens. Check out our air fryer conversion chart for more precise adjustments.
Many classic British recipes, especially baked goods and casseroles, use Gas Mark temperatures. Converting 309 F to Gas Mark 2 ensures these dishes cook evenly without burning. For air fryer users, this knowledge helps when following older recipes or when your appliance displays temperatures in Fahrenheit rather than Gas Marks.
This temperature is perfect for slow-cooked meats, baked potatoes, or fruit crumbles that benefit from gentle heat. In an air fryer, you might use 309 F for dehydrating fruits or making jerky. The lower temperature prevents burning while allowing thorough cooking. Explore our dessert recipes for ideas using this temperature setting.
Air fryers circulate hot air rapidly, so you may need to reduce cooking times by 10-15% compared to oven recipes at Gas Mark 2. Always check food a few minutes early and use a meat thermometer for proteins. For best results, preheat your air fryer to 309 F before adding food, just as you would with an oven.
This temperature works well for custards, cheesecakes, and delicate pastries that might crack at higher heats. It's also ideal for reheating leftovers in your air fryer without drying them out. Try our recipe collection for inspiration on using this temperature effectively.
Vegetables like carrots and parsnips roast beautifully at 309 F (Gas Mark 2), developing sweetness without burning. In an air fryer, you might cook them for 20-25 minutes instead of 30-40 minutes in an oven. Always shake the basket halfway through for even cooking.
Some air fryer models run hotter than their settings indicate. If food cooks too quickly at 309 F, try reducing the temperature by 10-15 degrees. Regular cleaning ensures accurate temperature readings and consistent results.
While we've focused on 309 F to Gas Mark 2, you might need other conversions. Gas Mark 1 is 275°F (140°C), while Gas Mark 3 is 325°F (170°C). Our conversion chart covers all common temperatures for easy reference when cooking various dishes.
Remember that air fryers often don't have Gas Mark settings, so knowing the Fahrenheit equivalent (309 F) is crucial. Many modern models allow temperature adjustments in precise 5-degree increments, giving you better control than traditional ovens.
