I Received 500 Candle Jars — What Dimensions Should I Measure on a Sample Before Accepting Them for Production?
शेयर करना
Do I need to inspect every jar? For chips, cracks and suspected cracks, yes. Safety defects are screened on all 500; only dimensions are sampled.
Which jar dimension matters most? Internal diameter half-way down, because it sets the melt surface your wick was approved for. Rim opening and internal depth come next.
How long does goods-in take for 500 jars? In the worked estimate, about three hours: 83 minutes of visual checks, an hour of measuring, plus capacity checks and recording.
Two kinds of check: every jar for safety, a sample for size
A goods-in plan for 500 jars mixes two very different jobs, and confusing them is the commonest mistake. Safety defects, meaning chips, cracks and anything that might be a crack, are screened on every jar, because a single one reaching a candle is unacceptable and sampling cannot promise to find it. Dimensions are different. Glass from one production run tends to vary within a band, so a well-drawn sample tells you where that band sits without measuring all 500.
So the plan has a 100% visual stage and a sampled dimensional stage, with a clear rule for what happens when the sample finds something unexpected. Formal sampling standards exist for industrial inspection, and larger operations may adopt one. For a candle business receiving a few hundred jars at a time, a simple written plan applied the same way every time is more useful than a table nobody follows.
The dimensions worth measuring, and why each one matters
Measure what affects the candle, the lid, the label or the packing. Everything below can be done with a vernier caliper that has outside jaws, inside jaws and a depth rod, plus your scale. CSI does not sell calipers; any generic one will do.
| Dimension | How to measure | Why it matters |
|---|---|---|
| Internal diameter half-way down | Inside jaws, two readings at 90 degrees | Sets the melt surface; the single most important figure for your wick |
| Rim opening (internal) | Inside jaws at the rim | Wick-centring tools, lid seating and how the top of the candle looks |
| Internal depth | Depth rod from rim to the centre of the floor | Fill line, headspace and wick length |
| Outer height | Outside jaws or a flat edge and rule | Box size, shelf fit and label position |
| Outer body diameter | Outside jaws at the widest point | Label wrap length and packaging fit |
| Rim wall thickness | Outside jaws across the rim wall at two points | Hints at glass thickness and evenness |
| Base thickness (derived) | Outer height minus internal depth | Fill height and heat behaviour near the end |
| Stands flat | Place on a flat surface and press lightly at the rim | A rocking jar tilts the wick and the finished candle |
| Lid fit | Fit and remove the lid | Customer experience and dust protection |
| Empty weight | Your scale, without lid | A quick overall check on glass quantity |
Measure the same way every time. Decide where "half-way down" is for each jar style and mark it on the reference jar, hold the caliper square to the glass rather than at a slant, and record readings to the nearest 0.1 mm if your caliper allows. Small differences in technique between two people can easily look like a change in the glass, so the method belongs in the written plan alongside the bands.
Brimful capacity is also worth knowing, but it needs water, and water inside a candle jar must be completely dried before any wax goes near it. The simplest approach is to measure capacity on three jars, then keep those three permanently as your reference jars rather than returning them to production.
A sampling plan for 500 jars
Here is a plan you can use as a suggested starting point and adjust after a few shipments. It assumes the 500 jars arrived in several cartons, which is usual.
Worked example: time and money on a 500-jar delivery
Suppose the order is 500 clear 200 ml salsa jars with 63 mm lug caps, bought as five packs of 100 at ₹2,950.00, which is 5 × ₹2,950.00 = ₹14,750.00, or ₹29.50 per jar. How much time does the plan above cost, and how much is at stake?
| Stage | Suggested working estimate | Time |
|---|---|---|
| Visual on all 500 | About 10 seconds per jar once practised: 500 × 10 = 5,000 seconds | About 83 minutes |
| Dimensions on 20 | About 3 minutes per jar for ten readings: 20 × 3 | 60 minutes |
| Capacity on 3 | About 5 minutes each including drying | 15 minutes |
| Recording and decision | Filling in the sheet and signing off | About 15 minutes |
| Total | About 3 hours |
The per-jar times are estimates to replace with your own once you have timed a shipment. Three hours sounds like a lot until you compare it with what the jars will carry. If each finished candle has a material value in the low hundreds of rupees once wax, fragrance and wick are added, 500 candles carry far more value than the glass itself, and a dimensional drift found after pouring cannot be undone.
The sample also sets you up for later shipments. If three consecutive orders all sit comfortably inside your bands, you might reasonably cut the dimensional sample to 10 jars while keeping the 100% visual check. The visual stage does not shrink, because safety defects do not become rarer just because dimensions have been steady.
Setting your acceptance bands and recording the result
You cannot accept or reject against a figure you have not written down. The bands below are a suggested starting point for jars in the 6–7 cm range, compared with your own reference jar, and should be adjusted once your burn records show what your wick and lids actually tolerate.
| Dimension | Accept | Investigate |
|---|---|---|
| Internal diameter | Within ±1 mm | Beyond ±1 mm: burn-test the extremes |
| Rim opening | Lid fits every sampled jar | Any lid that will not seat |
| Internal depth | Within ±2 mm | Beyond ±2 mm: check fill line and wick length |
| Outer height and diameter | Within ±2 mm | Beyond ±2 mm: check labels and boxes |
| Stands flat | No rocking | Any rocking jar |
| Empty weight | Within about 5% of reference | Beyond 5%: measure walls and base |
Record the invoice number, date received, product name exactly as listed, carton count, who inspected, every sampled reading, the visual defect tally, and the decision: accept, conditional release, quarantine or reject. File it with the reference jars' labels. If you need to raise the shipment, for CSI orders send the readings and photographs on WhatsApp (+91 7397976926).
Hold every supplier to the same plan, including us. The point of measuring is that the numbers decide, not the name on the invoice or how long you have been buying from them.
Where this page fits
CSI already has guides that cover parts of this question. This page covers the goods-in check for the question above; these go deeper on the rest:
Three things to buy for this job
| Option | Price | Status on the September 2026 pull |
|---|---|---|
| 5 pcs | ₹200.60 | In stock |
| 50 pcs | ₹1,475.00 | In stock |
| 100 pcs | ₹2,950.00 | In stock |
| Option | Price | Status on the September 2026 pull |
|---|---|---|
| Pack of 5 | ₹354.00 | In stock |
| Pack of 10 | ₹708.00 | In stock |
| Option | Price | Status on the September 2026 pull |
|---|---|---|
| Digital scale | ₹354.00 | In stock |
CANDLEMAKINGSUPPLIESINDIA supplies raw materials and production equipment, not finished candles. This guide separates general quality-control practice from what CSI's own product pages state, says plainly what CSI does not publish (lot numbers, certificates of analysis, tolerances), and labels every sample size, tolerance or retained quantity as a starting point for your own validation.
Prices are live CSI prices from September 2026; product pages are authoritative. Where a spec is not published — such as a lot number, a jar's internal diameter or a wick's burn rate — this guide says so rather than filling the gap.
For bulk quotes, questions about a specific delivery, GST invoicing, IFRA and MSDS documents, message us on WhatsApp at +91 7397976926.
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Customer reviews: The reviews at the top are genuine, published Judge.me reviews — Thenirvaofficial (5★, verified); Jinal Patel (5★, verified); Manasa GN (5★, verified); Antara Srinivas Iyer (5★, verified); Sraddha (5★, verified); Urvashi Patel (4★, verified). Names, ratings, dates and products as recorded by Judge.me.
Product facts (September 2026, CSI live store): 200 ml Salsa Glass Jar with 63 mm Lug Cap (Clear): 5 pcs ₹200.60, 50 pcs ₹1,475.00, 100 pcs ₹2,950.00 — golden lug cap; coloured versions ₹310.00 / ₹3,100.00 / ₹6,200.00. Matte / Frosted Glass Jar (200 ml): Pack of 5 ₹354.00, Pack of 10 ₹708.00 — page states "fill weight of 200 ml" and "Height 8 cm width 7 cm" (outer size); several colours, some out of stock. Candle Making Weighing Scale: Digital scale ₹354.00 — digital, grams or ounces · capacity and resolution not published.
Assumptions: Fragrance load is a percentage of total candle weight (200 g = 184 g wax + 16 g oil at 8%). CSI product pages do not publish lot numbers, certificates of analysis, tolerances, jar internal diameters, wick dimensions or mould hardness; where this guide needs them, it tells you to measure or ask. Sample sizes, tolerances, retained quantities, test lengths and acceptance rules are suggested starting points to validate, not standards or CSI policy. Hypothetical supplier prices are CSI prices adjusted by the stated percentage and labelled as such. Worked examples are illustrations. Prices and availability change — product pages are authoritative.