Candle Label Requirements: Warning Labels, Sizing, and Heat-Safe Materials
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Candle makers obsess over scent throw and jar aesthetics, then slap a paper warning label on the bottom that curls off in a month. Both halves of the label job matter — the legal half and the material half.
The warning label
Industry practice follows ASTM F-2058: a cautionary label with the classic three instructions — burn within sight, keep away from combustibles, keep away from children and pets — plus fire-safety guidance like trimming the wick and burn-time limits. Most makers use a 1.5" or 2" circle on the vessel bottom.
The brand label
Front labels typically carry your brand, scent name, and net weight. For a straight-sided tumbler jar, a 3" × 4" rectangle or 3" circle works; tins usually take a 2.5" circle on the lid.
Why material choice is a heat problem
A burning candle warms the vessel. Paper labels dry out, curl, and discolor. BOPP candle labels tolerate the warm-jar cycle, resist wax and fragrance-oil stains, and keep the matte, high-end look candle brands want.
The kraft-look trick
Want the rustic kraft aesthetic without paper's weaknesses? Print a kraft-textured design on matte BOPP — same look, waterproof performance. We cover this in the Materials Guide.
General information, not legal advice — verify current labeling standards for your market.