I Use 500 g of a Bestseller Fragrance Every Month — Should I Buy 5 Kg for the Discount or Protect Cash with Smaller Orders?

Three ways to buy 500 g a month

Your figures (title): 500 g of one oil a month, and an offer of a 5 kg pack at a lower per-kilo price. 500 g is about 31.25 candles of 200 g at 8% (16 g of oil each) or 41 of 150 g at 8%. To make the rupees real, we price the oil as CSI's Lavender; the 5 kg pack is a hypothetical offer at 10% and 15% off the kilo price, because CSI lists no oil pack above 1 kg and we will not invent a CSI bulk price.

The 1 kg route is a small, safe win: ₹95.00 over ten months on Lavender for holding one extra month of stock at a time. The 5 kg route saves more on paper, ₹2,610.50 against the 1 kg route at 10% off, but asks for ₹18,273.50 more cash on day one than a 1 kg order (₹20,874.50 more than a 500 g order). For a small candle business, that is often a month's jars, a festive wax order or a new product's test batch.

The cost of more orders: freight and time

Smaller packs mean more orders, and each order can carry delivery charges and your time. CSI does not publish freight, so use your own figure; ₹120.00 an order is a worked example. Over a year, 500 g monthly is 12 orders and 1 kg every two months is 6: the kilo route saves ₹720.00 a year in delivery on top of the pack saving, which on Lavender (₹114.00) is the bigger of the two. Over ten months the 5 kg pack is one order against five on the 1 kg route, ₹480.00 less delivery, which lifts its net to ₹1,719.99 at 10% off and its break-even stranding chance to 10.9%. That is the strongest honest case for the bulk pack, and it still asks you to be nearly nine-in-ten sure of one scent for ten months. The cheaper fix for freight is to put the oil on an order you are placing anyway: the kilo of fragrance rides with the wax or the jars, and the delivery cost per oil order falls towards nothing.

Ten months of holding cost

Holding cost here is only the cost of the money: interest on borrowed cash, or what the cash would earn elsewhere. It does not include the risk of the oil going unused; that comes next. Price it at your own monthly rate; 1.5% is the worked example.

Drawing down a 5 kg pack evenly over ten months, your average stock is half of it: ₹11,747.25 at 10% off. On the 1 kg route the average is half a kilo: ₹2,610.50. The difference, ₹9,136.75, sits on the shelf for ten months.

Ten months is long enough for holding cost to take about half of a 10% discount. On the cost of money alone, the 5 kg pack only breaks even at about a 5.6% discount for this use rate; anything above that is positive on paper. So both offers "pay" in the narrow sense. The question is what you get for ₹124.00 a month, and the honest answer is: ten months of exposure to one scent.

The bestseller risk: what if it stops being one?

A bestseller this month is not a contract for next year. Over ten months, any of these can happen: tastes move with the season, you reformulate the range, a corporate client asks for a different scent, a new oil tests better, or the oil in a large, repeatedly opened container changes character (a tendency; CSI does not publish shelf life, so ask your supplier what they state and store it cool, dark and sealed). None is certain. Each would strand what is left.

Price the plausible bad case. Suppose that at month 4 you stop using the oil. On the 5 kg route, 3,000 g is left, worth ₹14,096.70 at 10% off (₹13,313.55 at 15%). On the 1 kg route, the most you can ever be left with is half a kilo: 500 g, worth ₹2,610.50.

To justify the 10% pack you need to be more than nine-in-ten sure the scent will still be poured, unchanged, ten months from now. Even at 15% you need better than eight-in-ten. If you are honestly that sure, and the cash has nothing better to do, the pack is defensible. Most small ranges cannot say that about any single oil, which is why the answer to the title is usually no. Building a backup for a bestseller (rather than a stockpile) is the backup-supplier post; what to ask a supplier about long-term availability is the batch and availability questions.

What each route does to one candle

Bring it back to the candle. Here is a 200 g Lavender candle at 8% under each route, with CSI Luxury Soy Wax Chunks, an Eco C2 wick and your own jar and box (labelled worked examples). Materials only; labour, freight, GST and marketing excluded.

The 1 kg route takes ₹0.30 off each candle against 500 g packs; the hypothetical 5 kg route a further ₹8.36, before holding cost and risk. At about 31.25 candles a month that further step is worth the same ₹2,610.50-over-ten-months already shown; the per-candle view just makes clear how little of the candle it touches. If you want a bigger per-candle saving on this oil without a stockpile, a confirmed load cut is worth more (the 10% to 8% saving post), and the order of attack for fragrance cost is the fragrance-share hub.

The CSI ladder for your oil: where 1 kg saves nothing

At 500 g a month the real everyday decision is 500 g monthly or 1 kg every two months, and that depends on your oil's ladder. On CSI's list it varies:

These are small numbers, and that is the point: at 500 g a month, the pack size barely moves the cost of the oil. On CSI's full list, of 78 oils sold in both 500 g and 1 kg, the kilo is cheaper on 34, the same on 24 and dearer on 20; on Woody Oud and the other flat ladders, buying a kilo only moves cash from your account to your shelf. Where the ladder really bites is lower down: five 100 g bottles of Lavender cost ₹80.00 more than one 500 g (₹960.00 a year), and on Roasted Coffee ₹60.00 more (₹720.00 a year). If you still buy 100 g bottles of a 500 g-a-month oil, that is the change to make today.

When to re-check, and what would change the answer

The answer is "not yet", not "never". Review at every order with this routine:

If you take the offer anyway: four ways to shrink the bet

Ask for the price, not the pallet. Some suppliers will hold a bulk per-kilo price against staged deliveries (two lots of 2.5 kg, say). That keeps most of the discount and halves the cover. Whether any supplier, CSI included, will do this is a conversation, not a listed term, so ask.

Split the pack on arrival. Decant into smaller, full, tightly sealed bottles so each one is opened only when needed; label lot and date. Less air in a half-empty container is a tendency worth having on your side.

Keep a retained sample. A small sealed bottle from the start of the pack lets you check, at month six, whether the oil in use still matches what you approved.

Set a sell-through trigger. If monthly use falls below a level you set in advance (say 400 g, judgement), stop adding new SKUs to that scent and plan how the remaining oil will be used, before it becomes dead stock. What to do with slow, expensive oil already on the shelf is the discontinue-or-keep post.

Four oils at 500 g a month

Four CSI oils with different ladders, shown for a 500 g-a-month user: how long each pack lasts and what a month of oil costs at each pack's price. Chosen on page statements, price and stock on 4 October 2026; CSI publishes no throw data and no sales rankings, and none of these is offered as a replacement for your bestseller.

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