You cannot buy Charcoal with your SNAP benefits/EBT card.
Though charcoal can be used for food preparation, SNAP benefits are only valid for food intended to be eaten at home; other household supplies, like charcoal or cleaning products, are not EBT-eligible.
Charcoal is most commonly purchased in briquette form for cooking and grilling, but some people take activated charcoal as a dietary supplement. Even in this form, you cannot use your SNAP benefits to buy charcoal; vitamins and medicines are excluded.
We confirmed this information by checking official SNAP program documentation from the USDA’s Food and Nutrition Service.