If you are cooking over a campfire and using coals to heat your oven, then a 12 or 14 inch cast iron Dutch oven with a flat top is the best option. You will be able to put coals on the top and bottom. If you are placing the Dutch oven in a standard oven, then a ceramic coated Dutch oven may work better, but almost any will work. Keep reading below to learn about the number of coals you will need.
Also see our Camping Cookbook

Here are some different types of Dutch ovens:

Best for campfire cooking

Works well in an oven

A lightweight option

Lid works as a pan too
How many coals (charcoal briquettes) do I need?
The number of coals, also known as charcoal briquettes, you need to get the right temperature depends on many factors. This is the fun part. You will need to add or remove coals and move them around to control the temperature. Here are some of the factors that will come into play:
- Air temperature
- Shade/sun
- Size of Dutch oven
- Amount of food in the oven
- Whether the cover is on or off. You will want it off for frying and on for baking or roasting.
- Type of Dutch oven. Use fewer with an aluminum Dutch oven.
- How hot the coals are
Here's a chart showing the typical number of coals you will need on the top and bottom of a cast iron Dutch oven. Use fewer with an aluminum Dutch oven.
Number of Charcoal Briquettes
T = Top of Dutch Oven
B = Bottom of Dutch Oven
| Temp/ Oven Size | 325F 163C | 350F 177C | 375F 191C | 400F 204C | 425F 218C | 450F 232C |
| 8-inch | T:10 B:5 | T:11 B:5 | T:11 B:6 | T:12 B:6 | T:13 B:6 | T:14 B:6 |
| 10-inch | T:13 B:6 | T:14 B:7 | T:16 B:7 | T:17 B:8 | T:18 B:9 | T:19 B:10 |
| 12-inch | T:16 B:7 | T:17 B:8 | T:18 B:9 | T:19 B:10 | T:21 B:10 | T:22 B:11 |
| 14-inch | T:20 B:10 | T:21 B:11 | T:22 B:12 | T:24 B:12 | T:25 B:13 | T:26 B:14 |
| 16-inch | T:25 B:12 | T:26 B:13 | T:27 B:14 | T:28 B:15 | T:29 B:16 | T:30 B:17 |
Number of Charcoal Briquettes
Top = Top of Dutch Oven
Bottom = Bottom of Dutch Oven
| Temp/ Oven Size | 325F 163C | 350F 177C | 375F 191C | 400F 204C | 425F 218C | 450F 232C |
| 8-inch | Top:10 Bottom:5 | Top:11 Bottom:5 | Top:11 Bottom:6 | Top:12 Bottom:6 | Top:13 Bottom:6 | Top:14 Bottom:6 |
| 10-inch | Top:13 Bottom:6 | Top:14 Bottom:7 | Top:16 Bottom:7 | Top:17 Bottom:8 | Top:18 Bottom:9 | Top:19 Bottom:10 |
| 12-inch | Top:16 Bottom:7 | Top:17 Bottom:8 | Top:18 Bottom:9 | Top:19 Bottom:10 | Top:21 Bottom:10 | Top:22 Bottom:11 |
| 14-inch | Top:20 Bottom:10 | Top:21 Bottom:11 | Top:22 Bottom:12 | Top:24 Bottom:12 | Top:25 Bottom:13 | Top:26 Bottom:14 |
| 16-inch | Top:25 Bottom:12 | Top:26 Bottom:13 | Top:27 Bottom:14 | Top:28 Bottom:15 | Top:29 Bottom:16 | Top:30 Bottom:17 |