The Client Approved My Sample Colour but My Production Batch Looks Slightly Different — How Do I Prevent Shade Variation Across 500 Candles?
शेयर करना
How do I stop it across 500 candles? Weigh a concentrate into every melt from one batch, buy the run’s dye and wax at the start (one lot where possible), record every lot, and pour one chip per melt that you judge at 72 hours against a bracket strip: five chips at −20%, −10%, 0, +10% and +20% of the approved dose.
What is the acceptance rule? In the worked example, a melt is accepted if its 72-hour chip sits between chip −1 and chip +1 under the standard light. Outside that band the melt is held and the cause found before the next melt.
What does a missed melt cost? In the worked example one 10 kg melt is 50 candles and ₹7,594.48 of CSI materials before jars and labour, 9.2% of the order. A ₹354.00 scale and a strip of chips cost less.
- Straight answer: compare properly, then control the inputs
- Your order as numbers
- Is it really different? Four comparison errors
- Six production causes and how to tell them apart
- The batch acceptance rule: bracket chips
- What to do with a melt that fails
- Buying to prevent drift
- The decision rule and what protects you
- What to buy
- Frequently asked questions
Your order as numbers
The title gives the quantity and the situation. It does not give the fill, colour or equipment, so the page uses a worked example: the series default 200 g at 8%, a blush made from Red with a Brown trace (the kind of shade built in the repeatable-formula post), British Rose, CSI 464, Eco C2, and a 10 kg melter that gives 50 candles a melt before losses.
| Item | Figure | Source |
|---|---|---|
| Candles | 500 | Reader’s figure (title) |
| Approved sample | Yes: client-approved colour | Reader’s figure (title); keep it as the reference |
| Production | One batch looks slightly different | Reader’s figure (title) |
| Fill and load | 200 g at 8% | 16 g British Rose + 184 g CSI 464 per candle |
| Colour (worked) | Blush: Red 0.30 g/kg + Brown 0.03 g/kg | Illustrative; CSI dye pages state no dose |
| Pours | 530 | 500 + 5 planned extras + 5% loss incl. shade rejects |
| Melts | 11 of 10 kg (50 candles each before losses) | 1% heel; the last melt part-filled |
| Reference | Retained approved sample + bracket strip | Judged at 72 h, standard light |
If you did not keep a retained sample, make one before the next melt: pour a candle from the approved formula, as written, and ask the client to confirm it against the one they hold. A photo on a phone is not a reference; screens and cameras change colour every time.
Is it really different? Four comparison errors
Age. Soy colour reads differently while it is warm and for a while after; a candle poured this morning beside a sample poured two weeks ago is two different states. Compare at the same age. Light. A warm workshop bulb, a cool tube light and window daylight each pull the shade a different way; pick one standard light and use nothing else for judging. Surface. Frosting lightens how soy reads; CSI 464’s page claims "Low frosting, minimal blooming", but any soy can frost, especially with temperature swings, so compare the colour of the body, not a frosted patch. Glass. Different jar cartons can differ slightly in tint and wall thickness, and a fuller jar reads deeper; compare like with like.
Six production causes and how to tell them apart
When the difference survives a fair comparison, the cause is almost always in one of the inputs or one of the process steps. The table sorts them by the pattern they leave, because changing the dose to fix a wax-lot problem just creates a second problem.
| Cause | The pattern you see | Quick check | Fix |
|---|---|---|---|
| Comparing different ages | Fresh batch reads lighter or darker; matches after a few days | Re-compare at the same age as the sample | Judge every chip at a fixed age (72 h here) |
| Different light | Looks off in the workshop, fine by the window (or the reverse) | Same place, same time, lids off, on white card | One standard light for every comparison |
| Dose by drops or rounded weighing | A whole melt uniformly deeper or paler | What was weighed, on what step, from what? | Weighed concentrate per melt, from one batch |
| New dye bottle or concentrate batch | A step change from one melt onwards | Batch sheet: when did the bottle or batch change? | Buy the run’s dye at the start; chip-check every new batch |
| New wax lot | Step change; the undyed base looks warmer or cooler | Undyed chip from old and new lot side by side | One lot per order where possible; never mix inside a colour |
| Fragrance oil lot or load | Shade shifts towards yellow, salmon or grey | Undyed scented chip, old lot vs new lot | Record oil lot; check an undyed twin per lot; never change load mid-order |
| Temperature or hold time | Melt held hot for long reads different from the rest | Batch sheet: add, pour, hold times | Written temperatures and a maximum hold |
| Incomplete mixing | Gradient inside one melt: first jars differ from last | Compare jar 1 and jar 50 of the same melt | Written stir time; stir again before each pitcher |
| Jar batch or fill depth | Only some jars differ, regardless of melt | Same wax in two jars from different cartons | Check glass tint and fill line per carton |
Drops are a common cause. The worked example’s melt 3 went wrong when the concentrate batch ran out mid-shift and someone counted 60 drops of Red into the pot “like the trials”. Drop size changes with how full the bottle is, the nozzle and the temperature, so a counted dose can be well off the weighed one; at the light end of a red, that is visible. The fix is not more careful counting; it is never counting.
Oil colour is the most overlooked. A fragrance oil has its own tint, and a new lot can differ from the one in the approved sample (the oil-lot question is covered in the fragrance-colour-between-batches post). An undyed scented chip from each oil lot, beside one from the sample’s lot, shows it in 72 hours. The same logic applies to wax: an undyed chip from each wax lot (see the wax-yellower post).
The batch acceptance rule: bracket chips
Human eyes are good at telling two colours apart side by side and poor at judging how far apart they are from memory. A bracket strip turns that strength into a rule. From the approved formula, pour five 20 g chips with the dye at 80%, 90%, 100%, 110% and 120% of the dose (100 g of scented wax per strip). Label them −2, −1, 0, +1, +2. Make 3 strips: one on the bench, one in the master box, one for the client.
| Chip | Dose vs approved | Red per 10 kg (illustrative) | Meaning |
|---|---|---|---|
| −2 | 80% | 2.40 g | clearly paler: hold |
| −1 | 90% | 2.70 g | edge of the band: accept |
| 0 | 100% (master) | 3.0 g | the approved shade |
| +1 | 110% | 3.30 g | edge of the band: accept |
| +2 | 120% | 3.60 g | clearly deeper: hold |
The ±10% band is a worked example and a judgement, not a standard: a very pale shade may need a tighter band, a deeper one may tolerate more. Agree the band with the client by showing them the strip at approval: “candles between these two chips are within what you approved.” That one conversation turns an argument about adjectives into a check anyone can repeat. What the client must approve, physically, before bulk is the approvals post.
What to do with a melt that fails
The best outcome is catching it at the 30-minute screen, while the wax is still in the pot. Too pale: weigh in more concentrate (the gap between the chip and the master tells you roughly how much) and re-screen. Too deep: you cannot take colour out; add weighed, scented, undyed wax and oil in the same 8% ratio, recalculate the dose for the new total and re-screen. Either way, the melt’s batch sheet records the correction.
Once it is poured, the options are commercial, not chemical. In the worked example one melt is 50 candles and ₹7,594.48 of CSI materials (₹49.09 of oil, ₹93.36 of wax and ₹9.44 of wick each) before your jars and labour, 9.2% of the order’s CSI materials.
| Option | When it fits | Cost in the worked example |
|---|---|---|
| Ship inside a separate table or room set | Score just outside the band; client agrees in writing | Nothing extra; needs the client’s yes |
| Keep for your own range or seconds | Clearly off; not to be sold to this client as the wedding colour | Remake 50: ₹7,594.48 of materials plus jars and labour |
| Pull the wax and re-pour | Only where you can remove wax from the jars safely and cleanly | Wicks lost (₹472.00), jars cleaned, labour; wax and oil recovered |
| Remake from the loss buffer | The order’s 5% loss buffer covers one melt of 50 only partly (25 pours) | Plan spare capacity for remakes in advance |
Buying to prevent drift
Drift prevention is a purchasing decision made on day one. Three purchase choices remove three causes before production starts: the dye for the whole run in one go, the wax from one lot if CSI can confirm it, and the oil recorded by lot with enough bought to finish the order. The sheet below is the worked example for 500 candles; the loss buffer is set at 5% rather than a plain candle’s 4% because a colour order adds shade rejects (how to fold a reject rate into purchasing is the reject-rate post).
| Line | Required | With buffers | Packs | ₹ | Left over | Drift control |
|---|---|---|---|---|---|---|
| Candle Dye Liquid Red | 32.12 g | 38.54 g | 1 × 50 ml | ₹472.00 | weigh it | one bottle, one lot |
| Candle Dye Liquid Brown | a trace | 3.85 g | 1 × 15 gm | ₹236.00 | most of it | one bottle |
| British Rose | 8 kg | 8.565 kg | 8 × 1 kg + 500 g + 100 g | ₹26,479.20 | 35.20 g | record the lot; undyed chip per lot |
| Luxury Soy Wax CSI 464 | 92 kg | 98.50 kg | 9 × 10 kg + 9 × 1 kg | ₹50,232.60 | 0.50 kg | one lot if confirmed |
| Eco C2 | 530 | 541 | 500 + 50 | ₹5,192.00 | 9 wicks | — |
| Your jars | 530 | 541 | your supplier | your price | — | one carton batch if possible |
| CSI total | ₹82,611.80 | ₹165.22 per saleable candle; tools ₹708.00 extra if you need them | ||||
CSI 464 is ₹507.40 a kilo whether you buy 1 kg or 10 kg bags, so buying it all at the start costs nothing extra per kilo; the only reason to split wax deliveries is cash or storage, and the reason not to is the lot. CSI does not promise lot continuity in advance; ask on WhatsApp what lot you received and whether the rest can match. If the answer is no, an undyed chip from each lot, side by side, decides whether the second lot can join this colour.
The decision rule and what protects you
The decision rule. Pour on when the last melt’s chip scored between −1 and +1 at 72 hours and nothing in the inputs has changed since. Stop and investigate when a chip falls outside the band, when scores creep the same way three melts running, or when any input changes (dye bottle, concentrate batch, wax lot, oil lot, jar carton). The settling numbers: 11 melts, one chip each, a band of ±10% of dose in the worked example, and 72 hours per judgement, so the last melt’s verdict arrives three days after it is poured: plan packing and delivery around that.
| Step | Why | Calendar time |
|---|---|---|
| Chip from every melt, judged at 72 h | The only proof the melt matches the approval | 72 h after each melt |
| Same-age, same-light comparison | Prevents false alarms and false passes | Minutes, at the same time of day |
| Undyed chip for every new wax or oil lot | Separates a base-colour shift from a dye problem | 72 h |
| Chip-check every new concentrate batch | A batch is a lot | 72 h before it goes into production |
| Burn check of a melt from each lot | Colour can hide a burn change | With your production burn schedule |
What to buy
Five items, chosen on page statements, price and stock on 7 October 2026. CSI publishes no colour, burn or dose data, so nothing is ranked on performance.
| Item | Price | Use |
|---|---|---|
| Pen Thermometer For Candle Making | ₹354.00 | add, pour and hold temperatures per melt |
| Item | Price | Use |
|---|---|---|
| Candle Making Weighing Scale | ₹354.00 | wax, oil and concentrate per melt |
| Size | Price | In this plan |
|---|---|---|
| 15 gm | ₹236.00 | trials only |
| 50 ml | ₹472.00 | the order: 38.54 g with 20% spare, bought at the start |
| 100 gm | ₹900.00 | a much deeper shade |
| Size | Price | Per kg | In this plan |
|---|---|---|---|
| 500 g | ₹260.00 | ₹520.00 | bracket strips from the production lot |
| 1 kg | ₹507.40 | ₹507.40 | bulk top-up: 9 of these |
| 5 kg | ₹2,537.00 | ₹507.40 | same per kg |
| 10 kg | ₹5,074.00 | ₹507.40 | bulk: 9 of these |
| Size | Price | Per gram | 200 g candles at 8% (16 g) |
|---|---|---|---|
| 15 g | ₹94.40 | ₹6.29 | none (a sniff sample) |
| 50 g | ₹212.40 | ₹4.25 | 3 |
| 100 g | ₹342.20 | ₹3.42 | 6 |
| 500 g | ₹1,593.00 | ₹3.19 | 31 |
| 1 kg | ₹3,068.00 | ₹3.07 | 62 |
CandleMakingSuppliesIndia sells the dyes, wax, oil, wicks and tools named here and does not sell finished candles. This page still tells you that the fix for drift is a process rather than a purchase, not to top up with new bottles or bags mid-order, that our scale and thermometer pages state no resolution or accuracy figure, and that one of our dye listings looks mispriced.
Every CSI price was checked on the live store on 7 October 2026, size by size; every item offered here is in stock on that date, and the out-of-stock Eco C1 10-pack is not offered. Stock depth, dispatch dates and lot continuity are not shown on product pages and are confirmed on WhatsApp.
The 200 g fill, 8% load, colour, doses, melt size, chip sizes, the ±10% band, the 30-minute screen, 72-hour judging age, the melt-3 drift, 5% loss, 1% heel and 2% piece buffers are labelled worked examples or planning judgements; the 500 candles, the approved sample and the batch that looks different are yours. This is practical judgement, not legal or financial advice. For bulk pricing, stock and lot confirmation, GST invoicing, and MSDS and IFRA documentation on request, message us on WhatsApp at +91 7397976926.
Frequently asked questions
- A Wedding Client Wants 500 Candles Matching the Exact Wedding Colour Palette — How Do I Create a Repeatable Dye Formula Before Mass Production?
- I Received a 500-Piece Wedding Candle Order in a Fragrance I Have Never Used Before — What Must I Test Before Buying 50+ Kg of Raw Materials?
- A Bride Wants 300 Lavender Candles in a Custom Dusty-Pink Colour — How Many Pilot Batches Should I Make Before Ordering Production Materials?
- Which Raw Materials for a Custom Wedding Candle Should Be Client-Approved Before I Commit to Bulk Purchasing?
- A Wedding Client Wants 1,000 Candles but Only 700 Identical Jars Are Currently Available — Should I Accept the Order Before Confirming the Remaining Supply?
- How Much Spare Production Capacity Should I Keep for Breakage, Rejected Candles and Remakes When Promising a Bulk-Order Deadline?
- My Historical Candle Reject Rate Is 4% — How Do I Incorporate That into Raw-Material Purchasing for a 2,000-Piece Order?
- Should My Jar and Wick Buffer Be Higher Than My Wax Buffer Because Individual Pieces Can Be Damaged or Rejected?
Customer reviews: The six reviews at the top of this page are genuine, published Judge.me reviews left by CSI customers on the product pages named on each card — British Rose Fragrance Oil, Candle Dye Liquid, Eco Soy CSI 400, Luxury Soy Wax CSI 464 (Flakes Form) For Container Candles, [1 Year Warranty] Mini Electric Wax/Soap Melter (1 litre capacity). They are general product reviews, not assessments of the bulk-order advice on this page. Names, star ratings, dates and products are as recorded by Judge.me and wording is unedited. "Verified buyer" appears only on reviews Judge.me recorded as verified — Arshad Shaikh, Antara Srinivas Iyer, Rahul Singh, Jaya Sawlani, Arminder Kaur, Priya Singh. Reviews below five stars are included as published, not filtered out.
Figures verified 7 October 2026, CSI live pricing: Pen Thermometer For Candle Making ₹354.00; Candle Making Weighing Scale ₹354.00; Candle Dye Liquid Red 15 gm ₹236.00, 50 ml ₹472.00, 100 gm ₹900.00; Candle Dye Liquid Brown 15 gm ₹236.00, 50 gm ₹472.00, 100 gm ₹236.00 as listed (likely a listing error); Luxury Soy Wax CSI 464 500 g ₹260.00, 1 kg ₹507.40, 5 kg ₹2,537.00, 10 kg ₹5,074.00; British Rose Fragrance Oil 15 g ₹94.40, 50 g ₹212.40, 100 g ₹342.20, 500 g ₹1,593.00, 1 kg ₹3,068.00; Eco Candle Wicks Thick (C2) 10 ₹94.40, 20 ₹188.80, 50 ₹472.00, 100 ₹944.00, 500 ₹4,720.00, 1,000 ₹9,440.00; Thin (C1) 10-pack out of stock. Every other item priced here is in stock. Stock depth, dispatch dates and lot continuity are not published: confirm on WhatsApp. Per unit = price ÷ grams or units, two decimals.
Non-price figures: 500 candles, the approved sample and the differing batch are the reader’s figures (title). The 200 g fill and 8% load (total-weight basis: 16 g oil + 184 g wax), the blush colour and doses (0.30 g/kg Red, 0.03 g/kg Brown), 10 kg melts of 50, 20 g chips, the five-chip strip and ±10% band, the 30-minute screen, 72-hour judging age, the melt-3 drift (60 drops), 5 planned extras, 5% loss, 1% heel and 2% piece buffers are labelled worked examples or planning judgements. Weighing errors quoted are worst-case rounding (half a scale step). No CSI dye page states a dosage; the scale and thermometer pages state no resolution, range or accuracy figure in the text we captured. Wax and oil ceilings are as the pages state (CSI 464 up to 10%; British Rose up to 10% soy): formulation limits, not regulatory ones. Costs are CSI materials only and exclude your jars, labour, freight, packaging and GST.