Guide

Dutch Oven Charcoal Chart & Calculator

The rule of thumb: for 350°F, use twice your oven's diameter in briquettes plus one, then add or take away two briquettes for every 25 degrees. For baking, put about two-thirds of them on the lid.

Coal calculator

Oven size
Temperature
Cooking
17 on the lid
8 underneath

25 briquettes total. Breads, cobblers, cakes: most heat on the lid.

Charcoal chart for baking

Briquettes on the lid / underneath. Standard-size briquettes, a calm day around 70°F.

Oven300°F325°F350°F375°F400°F425°F450°F
8"9 / 410 / 511 / 613 / 614 / 715 / 817 / 8
10"11 / 613 / 614 / 715 / 817 / 818 / 919 / 10
12"14 / 715 / 817 / 818 / 919 / 1021 / 1022 / 11
14"17 / 818 / 919 / 1021 / 1022 / 1123 / 1225 / 12
16"19 / 1021 / 1022 / 1123 / 1225 / 1226 / 1327 / 14

Adjusting for real conditions

  • Cold or windy days: add a few briquettes, and use a windscreen if you can.
  • Hot sun: you may need a couple fewer.
  • Long cooks: briquettes lose heat after 45 minutes to an hour. Light a fresh batch in the chimney before then.
  • Avoid hot spots: every 15 minutes, turn the oven a quarter turn one way and the lid a quarter turn the other.
  • Deep ovens need a couple more on the bottom than shallow ones.