My Candle Packaging Absorbs Fragrance During Storage — Could Packaging Materials Be Affecting How Strong the Candle Smells When Opened?

Packaging works in two directions

Makers usually notice this by accident. A retailer says the boxes smell wonderful but the candles inside are a bit weak. Or you open a carton after a few months and the scent hits you before the lid is off, then fades once the candle is out. Both are signs the packaging is part of what the customer smells.

Absorption is the first direction. Fragrance materials released from the candle surface into the air inside a box do not just sit there. Porous materials — uncoated board, kraft paper, paper or card inserts, tissue, shredded fill, some foams — can take them up over time. The more open the candle, the more fragrance is available to be taken. A lidless jar in a paper sleeve gives the most away; a well-lidded jar in a carton much less.

Addition is the second direction. Board, glue, printing ink, wood-pulp fillers and damp paper all have smells of their own. When you lift a lid inside a closed box, the first breath is a mix of candle and box. If the box smell is strong, the candle can seem weaker or different, even if nothing in the wax has changed.

Which materials to suspect first

Start with whatever touches the candle or sits closest to it. Paper or card inserts that hug the jar, shredded paper or wood-wool fill, tissue wraps and uncoated inner cartons are the usual first suspects because they are porous and close to the source. Outer shipping cartons matter less if the inner packaging is good. Printed sleeves with strong ink or glue smells are suspects for the second direction — adding odour rather than taking it.

Note the closure too. A jar with a loose or no lid releases fragrance into the box all the time; a firmly closed jar releases far less. If you sell lidless jars, the packaging matters more, because there is nothing between the wax surface and the board.

A four-arrangement packaging test

You want to isolate the packaging. So keep everything else identical: one oil lot, one wax lot, one pour, the same jar and lid, and candles stored side by side in the same place for the same time.

Store everything together for the period your stock really sits in packaging — a month, three months, a festive season. Check at one or two points you choose.

Score at opening and after the candle has breathed

Packaging effects and fragrance effects behave differently over a few minutes, and that is your best clue. Score each candle twice: in the first breath as the box and lid open, and again after it has been out of the packaging and lid-off for fifteen minutes — a suggested interval — in a neutral room.

The empty-carton check is the clearest single sign. Take the candle out of an arrangement-2 carton, close the empty carton, leave it overnight, and smell it beside a new, never-used carton. If the used one smells clearly of your fragrance, the board and insert have taken it up.

What the test costs, and what to buy for it

Ten scented 200 g candles at 8% need 10 × 16 = 160 g of oil. With Woody Oud, two 100 g packs cover it: 2 × ₹453.12 = ₹906.24. The 500 g pack is ₹2,265.60 and works out cheaper per gram — 160 × ₹4.5312 = ₹724.99 of oil used — but it leaves 340 g open before you know whether your packaging works. Buy the two small packs for the test.

Wax for twelve candles is about 2.4 kg of CSI 464: 3 × ₹507.40 = ₹1,522.20 for 3 kg. Jars depend on what you sell in. CSI does not sell cartons, inserts, sleeves or bags, so test the exact packaging you buy elsewhere and add its cost yourself.

Testers and gift boxes

Gift boxes and display boxes are often the most porous packaging a maker uses, and they sit on shelves the longest. If a retailer keeps your boxed candles for a season, the box has a long time to take up fragrance. Run the test with your gift box as well as your shipping carton; they may behave quite differently.

Fixes, from cheapest to most involved

Keep lids on firmly in storage. Use a lidded jar if your current one has no lid. Put the candle in a sealed bag before it goes into the carton, if your results show the bag helps. Replace porous inserts and fillers with ones that take up less fragrance — and test them the same way. Ask your packaging supplier about coated or lined board if the carton is the main absorber.

Write the result into your packaging specification: which insert, which board, bag or no bag, lid tightness checked at packing. When a new packer joins or a supplier changes a material, the specification tells everyone what was tested and approved.

Re-run the test whenever you change a packaging supplier, board grade, insert or print finish. Packaging that looks identical can behave differently, and it is far cheaper to find out with ten test candles than with a season's stock.

Only if the bagged candle also drifts away from the bare reference over time is the change in the candle itself — and that is a fragrance-ageing question. Our oil pages give no shelf life or storage temperature. Ask us on WhatsApp (+91 7397976926) for the IFRA certificate, MSDS and any storage guidance for your oil and lot, in writing. The 60-month shelf life on CSI 464 is a wax statement, not a packaging or fragrance one.

Payal Patel said of Woody Oud: "Good quality wood fragrance oil with a warm, long-lasting scent and strong performance in candles." That is one customer's experience, in one setup. Your packaging can still take some of that scent away before your customer ever lights the candle, which is exactly why the test is worth running.

Where this page fits

CSI already has guides that cover parts of this question. This page answers one fragrance-ageing decision; these cover the neighbouring questions:

Three things to buy for this decision

Frequently asked questions