I'm Scaling to 10,000 Candles Monthly but Demand Is Uneven Across Fragrances — How Do I Avoid Producing Too Much Finished Inventory of Slow Sellers?

Why uneven demand fills shelves

At 10,000 candles of 200 g a month you are pouring 2,000 kg of scented wax: 1,840 kg of wax and 160 kg of oil at an 8% load. That volume is rarely spread evenly across scents. In a typical range a handful of scents take most of the sales and a long tail sells slowly but steadily.

The example on this page uses fourteen scents: four bestsellers selling 2,000, 1,800, 1,500 and 1,200 a month (6,500 in total), five mid scents selling about 560 each (2,800), and five tail scents selling about 140 each (700). Replace the figures with your own.

Overproduction of slow sellers usually comes from a sensible-sounding habit: when a melter slot is free, fill it. A free afternoon becomes two loads of a tail scent, which is 96 candles of something that sells 140 a month. Do that a few times and the shelves carry months of candles nobody has ordered, while the bestseller runs short because its oil was used elsewhere.

Measure finished stock in weeks, not units

Units on a shelf mean nothing without sales beside them. 500 candles of a bestseller is a week's supply; 500 of a tail scent is most of a year. Convert every scent's stock into weeks of cover: finished stock divided by average weekly sales. With about 4.3 weeks in a month, the example scents sell roughly 465, 130 and 33 a week respectively.

The caps in weeks are starting points to validate, not standards. They are set so that fast sellers, which are replenished often, never pile up, and slow sellers, which are made less often, still have enough cover to reach their next slot. Notice the effect: the tail scent is allowed more weeks but only a fifth of the bestseller's candles.

The trigger and the stop rule

Caps only work with a rule that everyone on the floor follows. Two levels do the job: a trigger level, below which a scent gets a batch on the next available slot, and the maximum, above which no batch of that scent starts, whatever the melter is doing.

Working the tail scent through a month

Follow one tail scent through four weeks to see the rule in action. It starts the month with 150 candles, about four and a half weeks of cover, which is above its trigger of about 100. Week one: no batch, and the shelf drops by about 33 to 117. Week two: still above the trigger, so still no batch, and the shelf falls to about 84. Now it is below the trigger, so it enters the next fortnightly slot with two loads, 96 candles, and the shelf climbs back to about 180 once they are ready, just under the cap. Across the month it was poured once, not four times, and it never ran out.

Compare the habit it replaces. A scent made in one load every week would have received 192 candles over the month against sales of 140, adding about 50 candles to the shelf every month. Within a quarter that is 150 extra candles of one slow scent, and there are five tail scents in the range.

The last step is the hard one culturally. A team that sees an empty melter wants to use it. The stop rule has to be written down, or the free slot gets filled with whichever oil is nearest.

Hold slow scents as raw material

For a container candle, you cannot pour unscented stock and add the fragrance later. What you can do is hold the ingredients unpoured. That is a much cheaper form of stock than finished candles.

A poured tail-scent candle has consumed 184 g of wax, 16 g of oil, a jar, a wick and the labour of melting, pouring and finishing. If it sits for months, all of that is locked up. The same wax held in its pack keeps its options open: it can become any scent. CSI 464 and CSI 468 both state a shelf life of 60 months in cool, dry storage, so a few extra packs on the shelf carry little quality risk.

Jars and wicks are shared across scents, which is exactly why they should stay unassigned until a scent reaches its trigger. A carton of empty jars can become a bestseller tomorrow; the same jars filled with a tail scent cannot. Keeping shared components in the general pool is what lets the bestseller absorb a sudden rise in orders without a stock-out, even when the slow scents have had a quiet month.

Store oils sealed and away from the melting area. Some CSI oils publish flashpoints below 100°C, such as Roasted Coconut at 93°C and Gardenia at 98°C, so holding more oil stock also means holding it more carefully.

There is also a quieter cost to over-poured slow scents. Candles that sit on a shelf for months need space that newer production could use, they gather dust on lids and labels, and they are the stock most likely to be discounted later just to clear the shelf. Each of those is a reason to keep slow-seller stock unpoured until it is needed.

Reviewing caps as demand shifts

Demand across fourteen scents never stays still. Seasonal scents rise and fall, and a new launch can steal sales from an old favourite. Review each scent's monthly sales and weeks of cover every month, and adjust caps when a scent moves between the bestseller, mid and tail groups.

At 10,000 candles a month, the slow sellers are not the problem on their own. The problem is making them on the same terms as the bestsellers. Caps in weeks of cover, a stop rule and raw-material stock keep production aimed at what customers are actually buying.

Where this page fits

CSI already has guides that cover parts of this question. This page takes the production-floor angle; these go deeper on the rest:

Three things to buy for this job

Frequently asked questions