Can I Reduce Packaging Cost Without Increasing Transit Breakage and Ultimately Spending More on Replacements?

What your packaging costs, and what a break costs

Packaging has two prices: what it costs to put on every order, and what it costs when it fails. Most cost-cutting looks only at the first. To see both we need a candle and a parcel. Here is a worked example: a 150 g candle at 8% (12 g of oil, 138 g of wax, load as a share of total weight) in CSI's Clear Glass Jar with Golden Lid (150 gram), whose page states an outer diameter of about 7 cm and a height with lid of about 8 cm. Jasmine's page states "Recommended load up to 10% soy"; Luxury Soy Wax CSI 464 states up to 10%, so 8% sits inside both ceilings and is a starting point your own burn tests confirm. The packaging lines are worked examples: use your own; they are not CSI products and say nothing about your supplier.

Packaging is 17.2% of this candle, about the same as the fragrance. Now the second price. When a parcel arrives broken, you usually send a new candle (₹267.40 of materials, packed), pay a courier again (a worked ₹70.00) and spend time on photos, messages and repacking (a worked ₹30.00). That is ₹367.40 per broken order before any refund fee, marketplace penalty or lost repeat customer, which are yours to add. At a worked 3 breaks per 100 shipments, breakage costs ₹1,102.20 per 100 orders, or ₹11.02 on every order you ship. So the real protection cost of today's parcel is ₹46.00 + ₹11.02 = ₹57.02 an order.

That one sum is the whole decision. A cheaper pack is a saving only if packaging plus breakage per order goes down. The full break-even arithmetic (how much a broken order can cost before a given saving disappears, with sensitivity at different breakage rises) is the ₹20 saving vs 3% breakage post; this page is about building a cheaper pack that does not raise the second number at all. If your box is a printed retail box rather than a shipper, whether it earns its share is the ₹45 box post.

The protection hierarchy

Parcels are dropped, stacked, slid down chutes and thrown into vans. The jar survives when the energy of a drop is spread through cushioning before it reaches the glass, and when the jar cannot travel inside the box and hit a wall, a corner or another jar. That gives a practical order of importance. It is packing judgement drawn from common practice, not a published standard; your test parcels are what confirm it for your jar.

1. A snug outer box

The box should leave a consistent gap round the wrapped jar, enough for pads and fill, and no more. An oversized box needs more fill, lets the fill settle, and gives the jar a run-up. An undersized box puts glass against the wall, with nothing between the jar and a corner impact. Right-sizing is usually the biggest safe saving because it cuts box material and fill together. Box choice for a whole range (one box for several jars, storage) is the compatible-sizes post.

2. A wrap round the jar

A layer of bubble or air-column wrap, or several layers of paper, stops glass touching anything hard and takes the first part of an impact. The lid matters too: a metal lid can dent and a loose lid can rattle. Wrap the jar with its lid on and taped if it tends to loosen.

3. Bottom pad, then top pad

Parcels land on their base and corners most often, in many makers' experience, and a jar standing on bare cardboard takes every landing directly. A bottom pad is the last layer you should ever cut. A top pad stops the jar lifting and hitting the lid of the box when the parcel is turned over or something is stacked on it.

4. Side void fill

Fill the gaps so the wrapped jar cannot slide. The test is simple: close the box and shake it. If you can feel or hear anything move, add fill. Loose shredded paper settles in transit, so a parcel that was tight at your bench can be loose by the third van; crumpled sheets hold their shape better (tendency, check yours).

5. Separation for multi-jar orders

Two jars in one box must not touch. A wrap on each jar plus a pad or a folded divider between them is the minimum. Multi-jar parcels are where a cheaper pack most often fails: two heavy jars give each other a hard surface to hit.

6. Seal, and the double box

A seal keeps the box closed under stacking and shows tampering. Double-boxing (a packed inner box floating in fill inside a larger outer box) is the strongest common method for fragile, heavy or high-value parcels, and the most expensive. Use it where test parcels or your log say single-boxing fails, not by default. Heat is a separate risk: a parcel sitting in an April–June van can soften wax whatever the cushioning; if summer parcels arrive oily, see the sweating-after-shipping post before you blame the box.

Two ways to save, priced

Both plans start from today's worked ₹46.00 parcel and 3 breaks per 100. The breakage rates after the change are worked illustrations: only your own tracking can give you the real figure. Cost per broken order is held at ₹367.40 for all plans; the few rupees of packaging difference inside it do not change the result.

Plan A looks like the bigger saving, ₹10.00 an order. But the jar now has room to move, and the saving pays for only 2.72 extra breaks per 100. If breaks double to 6 per 100, breakage costs ₹22.04 an order and the total is ₹58.04, ₹1.02 worse than today, ₹510.00 a month at 500 orders. This is the trap in the title: you spend more on replacements than you saved on packaging, and the invoice never shows it.

Plan B saves less, ₹2.30 an order, because it removes waste rather than protection: a box closer to the jar's size, fill that holds its shape, and paper tape bought on the 200 m roll. Its allowance is small (0.63 extra breaks per 100), so it must not add breakage at all, and the design is chosen so that it should not. At an unchanged rate it saves ₹1,150.00 a month and ₹13,800.00 a year. If your log later shows the snugger pack cuts breaks to 2 per 100, breakage drops to ₹7.35 an order and the saving becomes ₹5.97, ₹35,820.00 a year, but count that only after the log shows it.

Plan C, for multi-candle orders: two 150 g jars in one 7 x 5 x 4 inch box, each wrapped, with tissue pads and a tissue separator, costs ₹29.10 of packaging per candle against ₹46.00 per candle for two separate parcels: ₹16.90 a candle, before the courier saving, which is the heavy-jar courier post's subject. It is also the parcel most likely to fail if the separator is skipped. If you are weighing a lighter jar at the same price, its breakage side is in the same-price lighter-jar post.

Which CSI item does which job

CSI lists a short range of plain packaging. Here is what each item can do in the hierarchy, with what its page states and what it does not. CSI publishes no crush, burst or drop data for any of these; nothing below is ranked on protection performance.

Two honest gaps. First, there is no CSI double-box set: if your log says you need one, it is two of your boxes, or one of ours inside a larger box from your own supplier. Second, the Air Bubble Roll's page text, as captured, is styling code, so we cannot tell you how many jars a roll wraps; ask on WhatsApp before you put it into a per-parcel cost. If a supplier is sending you jars and they arrive broken, that is a different problem, covered in the what-packaging-to-expect-from-a-jar-supplier post.

Test parcels and the bench drop test

Packaging is outside the burn formula. Wax, oil, wick and jar stay exactly as approved, so a packaging change needs no burn retest (which changes do count as a revised formulation is the which-changes-count post). What it needs is a transit check, in two stages, and an honest view of what each stage can tell you.

Stage 1: the bench drop test (judgement, not a standard)

Formal transit-test standards exist and specialist labs run them; what follows is an informal bench version that many small makers use, not a certification. Pack five parcels the new way with reject or second-quality candles inside. Drop each from about waist height onto a hard floor: on its base, on its top, on a long edge, and on one corner, then once more on the base. Open every parcel and record cracks, chips, a loosened or dented lid, marks on the wax surface, and how far the jar has moved. Repeat with today's pack as a control. If the new pack does worse than the old on the bench, stop there.

Stage 2: real test parcels

Send a worked 20 parcels through your normal courier to friends, staff or repeat customers in different cities, with photos requested on opening. At plan B's ₹43.70 plus a worked ₹70.00 courier each, that is ₹2,274.00; the five drop-test packs add ₹218.50 of packaging (the reject candles are not counted). One-off total: ₹2,492.50, paid back in about 2.2 months at plan B's ₹1,150.00 a month.

What 20 parcels can and cannot tell you. A common rule of thumb in statistics (the "rule of three") says that if you see zero failures in n trials, the true failure rate could still be as high as about 3 ÷ n, at 95% confidence. Zero breaks in 20 parcels is consistent with a rate up to 15.0%; in 50 parcels, up to 6.0%; in 300, up to 1.0%. To show that plan B adds fewer breaks than its 0.63-per-100 allowance, you would need about 479 parcels without a break. So stage 2 is a filter for gross failures (a jar that moves, a lid that flies off, a box that crushes), not proof. The proof is the monthly log after rollout.

Breaks per 100 shipments

One figure turns packaging from guesswork into a decision: breaks per 100 shipments, by month, split by what failed. Count every damage claim, including a dented lid or a marked surface the buyer complained about, not just cracked glass. Here is a worked log; your counts will differ.

The split matters more than the total. Mostly cracked jars points at the bottom pad, the jar-to-wall gap or jar-to-jar contact. Mostly lid dents points at the top pad or a lid that is not taped. Surface marks point at missing tissue between the wax and the wrap, or at heat. Fix the layer the log names, and do not pay to upgrade the others. The cluster's combined guardrails for jar, wick and packaging cuts are in the look-no-cheaper, burn-no-worse post.

Two cautions on reading the log. Months with a few hundred shipments swing by chance: a month at 2 per 100 followed by one at 4 is not proof the pack got worse. Compare quarters, or compare the old and new pack side by side over the same weeks. And watch the festive peak: parcel volumes and handling rise in the run-up to Diwali, and a pack that is fine in July can struggle in November, so judge a change on the same season where you can. If breakage is coming from glass you received cracked or chipped, that is incoming jar quality, not packaging; the lighter-versus-heavier-jar post looks at the jar side of pan-India shipping.

What to buy, and what to skip

Five CSI packaging items mapped to the protection hierarchy, chosen on page statements, pack prices and stock on 4 October 2026. Fit figures use the 150 g jar's stated 7 cm outer diameter and 8 cm height; measure your own jar.

Skip for this decision: the 100-pack of 11 x 11 x 8 cm boxes (same ₹22.42 per box as the 50), the 2.5 x 2 x 2.5 inch box for any jar wider than 6.35 cm, and a new roll of wrap when the wrap you have is passing your test parcels.

Frequently asked questions