One Employee Makes Perfect Candles with My Formula but Another Gets Rough Tops and Inconsistent Scent — Which Process Variables Should I Standardise?
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Same formula, two makers · which steps differ?
Find the unwritten steps behind your best maker's candles and put them on one page.
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★★★★★
"This stirring stick is quite helpful In mixing the colours and stirring the wax …I definitely recommend this product…"
Lalitha JaganAug 2024
Bamboo Stirring Sticks for Mixing Wax
★★★★☆
"Hey, the fragrance is so nice. Can’t wait to use in my candles!! A must buy item!!"
S.A.Jun 2024
Jasmine Fragrance Oil
★★★★★
"This bamboo wick holder doesn’t exert any pressure on the wicks… and it is a very useful product 👌🏻👌🏻.."
Lalitha JaganAug 2024
Bamboo Wick Holder
★★★★★
"Working nicely so far"
AshwiniSep 2025
Hot Air Gun
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"Been using this for the past 3 years, works perfectly well."
Niharika SOct 2024
Hot Air Gun
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"Your products are real money valued and genuine, enhanced the candle making experience."
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Complete Candle Making Course Kit for Beginners
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✓ Prices verified 26 September 2026, stock checked per size ✓ MSDS and IFRA documentation on request on WhatsApp ✓ Raw materials only — CSI does not sell finished candles
CSI Diagnostics · Two Makers, One Formula
Same lots, same day, two people: the difference is in steps only one of them knows. Watch both make a half batch, then write those steps down with numbers and checks.
8 of 10
steps that differed in the worked-example shadow run · CSI live pricing, September 2026
Quick answers — read this first
Why does one person's candle come out better with the same formula? Because a formula lists ingredients and percentages, not hands. Weighing habits, the temperature the oil goes in at, stir time and scraping, jar temperature, pour temperature and where the candles cool are all done by a person. Two people rarely do them the same way unless a page tells them to.How do I find the differences? A shadow run: both people make a half batch on the same day, from the same wax bag, oil bottle, wick pack and jar carton, while one observer writes down what each actually does at every step, with a stopwatch and a thermometer.
What do I standardise first? The differences that sit on the path to the symptom. For rough tops: pour temperature, jar temperature, stirring that whips in air, and cooling. For uneven scent: how the oil is weighed and transferred, the temperature it goes in at, and stir time. Then write the winning way onto one page with numbers and checks.
What should I buy? Often nothing, or a second scale and thermometer (₹708.00) so both stations can meet the same numbers. The fix is a written instruction, not a new raw material.
The short answer
The cause: unwritten steps. Same lots and same day remove the materials, so what's left is how each person weighs, heats, stirs, pours and cools.
The test: a shadow run. Two half batches of six 150 g candles, same lots, same day, one observer, every step timed and measured, candles coded and judged blind.
The decision: the reference person's candles still pass and the other's still fail → standardise the differing steps on the symptom's path. Both pass while watched → the difference lives in the routine on normal days: work instruction plus spot checks. Both fail → not the people; go back to the lots.
The cost: twelve candles you can sell if they pass (₹2,608.77 of materials in the worked example: Jasmine, CSI 464, 150 g jar, C1), an observer's afternoon, and the half batch at risk (₹1,304.38). Excludes labour, freight, packaging and GST.
In this guide
- Straight answer: which variables to standardise
- Same lots, same day: why the person is now the variable
- Rough tops and uneven scent: which habits sit on which path
- The shadow run, step by step
- Reading the differences: cause, habit or the watcher effect
- Turning the differences into a one-page work instruction
- What not to buy for an operator problem
- Scale, sticks, probe, centring and the oil
- Frequently asked questions
The observation card from a worked-example shadow run. Two people, one formula, the same lots on the same day: eight of ten steps differed. Each difference is tagged by the path it sits on (scent, tops or burn), which is how you decide what goes into the work instruction first.
Weighing · ₹354.00
Candle Making Weighing Scale: one per station, same habit at both
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Bamboo Stirring Sticks: one tool, one written stir
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Send your observation sheet and ask which rows matter
Straight answer
One employee makes perfect candles with my formula, but another gets rough tops and inconsistent scent. Which process variables should I standardise?
Standardise the ones the shadow run shows are different, starting with those on the path to each symptom. Rough tops sit on the heat-and-cooling path: pour temperature, jar temperature, stirring hard enough to whip in air, and where and how the candles cool. Uneven scent sits on the dose-and-mixing path: how the oil is weighed and transferred, the temperature it goes in at, and how long and how thoroughly it is stirred. Don't guess which of those your second maker does differently; watch. Both people make a half batch on the same day from the same wax bag, oil bottle, wick pack and jar carton. An observer writes down what each does at every step, with a stopwatch and a thermometer, and the candles are coded and judged blind. Every difference on the observation sheet goes onto a one-page work instruction, as a number with a tolerance and a check, and both people then make a batch from that page. If the gap closes, you have found it. If both people's candles pass while they're being watched, the difference is in the everyday routine, and the work instruction plus occasional spot checks is the fix.
One line: watch both people make the same half batch on the same day, write down every difference, and turn the differences on the symptom's path into numbered steps with numbers and checks.
Two stations, one set of numbers: a Weighing Scale (₹354.00) and a Pen Thermometer (₹354.00) at the second station means both people can meet the same written figures. Both in stock on 26 September 2026. Check them against the first station's before the run.
Buy the scale — ₹354.00
Same lots, same day: why the person is now the variable
If two people use the same bag, the same bottle and the same carton, the bag, bottle and carton can't explain the difference between them.
When two makers get different results from one formula, the tempting explanations are "she has the knack" or "his batch of wax was different". The second one is testable and usually wrong: if both used the same lots, the lots are shared, so they cannot explain a difference between the two of them. The first one is true but useless until you turn the knack into steps. A formula card says 8% Jasmine in CSI 464, a C1 wick, the 150 g jar. It doesn't say "weigh the oil straight into the pot", "stir for two minutes scraping the base", "pre-warm the jars" or "don't cool them under the fan". The person who makes perfect candles is following steps that exist only in that maker's head.
That is also why the question is "which variables", not "which employee". Most operator differences are reasonable habits that nobody wrote down. The fix is a shared page, not a lecture. The shadow run is simply the fastest way to find the unwritten steps, because it lets you see them side by side instead of reconstructing them from memory.
Before the run: remove the easy suspects
Check that both stations' scales read the same reference item, and that their thermometers agree in stirred ice water. Both should use the same melter, or one that has passed an equipment qualification run. If one station's scale reads a few grams light, you've found a difference without watching anyone, and the run would only confirm it.Rough tops and uneven scent: which habits sit on which path
Two symptoms, two paths. A habit matters only if it sits on the path to the symptom.
The table ranks the operator differences we would suspect behind each symptom, most common first. The ranking is editorial judgement; CSI has no data on which habits cause which faults. Every cause is a tendency, which is why the shadow run and a blind judgement decide, not the table.
Differential table · one maker's candles fine, another's rough and uneven
Ranked most common first within each symptom (judgement) · same lots, same day assumed
| Symptom | Habit that differs | Why it can matter (tendency) | What the shadow run shows |
|---|---|---|---|
| Rough tops | Pour temperature judged by eye | Hotter or cooler pours set differently at the surface | Observer's probe reading at the pour |
| Rough tops | Cold jars vs pre-warmed jars | A big wax-to-glass difference changes cooling at the edge and surface | Jar prep written down, jar temperature noted |
| Rough tops | Cooling spot: under a fan, jars touching | Moving air and crowding cool some candles faster or unevenly | Where the tray went and what was blowing |
| Rough tops | Fast whisking | Air stirred in can surface as pits and bubbles | Stir style and time on the stopwatch |
| Uneven scent | Oil weighed in a cup and poured, cup not scraped | Less oil reaches the wax than the formula says | Cup weighed after pouring |
| Uneven scent | Oil added "when it looks clear" | Hotter or cooler additions than the SOP (why it can look normal) | Probe reading at the addition |
| Uneven scent | Short or shallow stir | Oil not fully incorporated before pouring (the 20-second stir) | Stir time; whether the base and sides were scraped |
| Uneven scent | Candles judged at different cure ages | Not a making difference at all | Pour dates on both sets |
The last row catches more teams than it should. If one person's candles are always tested a week after pouring and the other's after three days, the "uneven scent" can be a cure-age difference. A cure standard for team QC is in the team cure-standard post; the shadow run fixes it simply by judging both sets at the same age.
The shadow run, step by step
One afternoon, two half batches, one person with a stopwatch who isn't allowed to help.
A half batch each keeps it quick and keeps the candles sellable if they pass. In the worked example each person makes six 150 g candles at 8% of total weight: 900 g in total, 72 g of Jasmine and 828 g of CSI 464. Together that is 144 g of oil and 1,656 g of wax. The oil page states "Up to 10% for soy wax" and CSI 464 states up to 10%, so 8% sits inside both ceilings.
1
Fix the materialsOne wax bag, one oil bottle, one wick pack, one jar carton, split between the two stations before anyone starts. Write the lot or purchase date of each on the sheet. Nobody fetches "their" stock.
2
Brief the observer, not the makersThe observer writes down what each person actually does, not what they say they do: every weight, every reading, every time, where things are put down. Tell the makers only "make six candles the way you always do". Don't coach, correct or comment during the run.
3
Run them one after the otherSame room, same melter, same day. Toss a coin for who goes first. The observer takes readings with a checked probe at the moments the maker would add oil and pour, and weighs anything left behind (the oil cup, the pitcher).
4
Let each set cool where that person puts itThe cooling spot is part of the habit. Photograph the trays, and note the fan, AC and window.
5
Code and judge blindA third person puts a code on each base. Tops are judged the next day, candles side by side under the same light. Scent is judged at the same cure age for both sets, in the same closed room with a fresh nose. The oil page states a cure of 48–72 hours; many makers judge at day 7 and day 14 as common practice.
6
Put the sheets side by sideRow by row, mark each step "same" or "different", and tag each difference by the path it sits on: scent, tops or burn. That is the card in the diagram.
What the observer found · worked example
The two differences with numbers attached · your readings replace them
| Row | Operator A | Operator B | What it means |
|---|---|---|---|
| Oil that reached the wax | 72 g, weighed into the pot | 70 g: 2 g stayed in an unscraped cup | B's candles at 7.80%, not 8%: 0.20 percentage points lower, 2.8% of the oil lost. Small, but it happens every batch, and more with a smaller cup or a thicker oil |
| Oil-add reading | 85°C | 92°C | 2°C above the top of CSI 464's 80–90°C pour range; hotter additions tend to cost lighter top notes |
| Pour reading | 82°C | 88°C | Inside the wax page's range but 3°C above the 150 g jar page's "Safe for hot pour up to 85°C". A jar-safety point as well as a tops point |
The last row is a reminder that a shadow run isn't only about quality. A pour above the jar's stated figure is a safety habit to fix whatever the candles look like. In that jar the work instruction says 80–85°C: CSI 464's 80–90°C range and the jar's 85°C, with the lower limit governing.
Mistake: running the shadow run on different days "because it's easier". What goes wrong: the room temperature, the humidity and possibly the lots change, and any of them can explain the difference; you've tested two days, not two people. Fix: same day, same lots, same room, one after the other. If a same-day run is impossible, swap: each person makes a half batch on each of two days, so the day and the person can be told apart.
Reading the differences: cause, habit or the watcher effect
Sometimes the most useful result is that both candles came out perfect.
Decision rule · after the blind judgement
Judged on coded candles at the same cure age · "fail" = the same rough tops or uneven scent you saw before
| Blind result | What it means | Next step |
|---|---|---|
| A passes, B fails, sheets differ on the symptom's path | The differing steps are the prime suspects | Write A's way into the work instruction; B makes a batch from it; judge blind again |
| A passes, B fails, sheets identical | Something not yet watched: station equipment, the moment of pour, the cooling spot later | Swap stations (B at A's scale, probe and bench); if B now passes, it's the station |
| Both pass while watched | The difference lives in the everyday routine (rushing, skipped steps when busy) | Work instruction plus unannounced spot checks; compare batch records by operator (the defect cross-tab) |
| Both fail | Not the people | Lots, equipment or formula: back to the cluster hub |
| Tops differ, scent doesn't (or the reverse) | Only one path differs | Standardise that path first and leave the other alone |
"Both pass while watched" is common, and it's not a failed test. People work more carefully when someone is holding a stopwatch. That tells you the second maker can make the candle, and that the gap appears when nobody writes the steps down and time is short. The one-page instruction and a production batch sheet that records the numbers (the batch-sheet template) keep the careful version going when nobody is watching.
Argued against our own interest: when the shadow run points at a person's routine, no wax, oil, wick or additive we sell will fix it. Changing to a "more forgiving" wax or a stronger oil just gives two people a new formula to make differently. A heat gun will smooth B's tops, but it hides the difference instead of removing it (the diagram's "hides T" row). If it stays, it goes into the instruction for both people.
Turning the differences into a one-page work instruction
One page, ten lines, a number on every line that has one.
Each line of the instruction comes from a row on the observation card. It says what to do, gives the number with its tolerance where there is one, and says how the person proves they did it. The instruction is not the batch sheet: the sheet records what happened, the instruction says what should happen. Which extra fields to record is covered in the process-information post, and the formula itself lives on a formula card (how to document a formula).
Work instruction · Jasmine 8% in CSI 464, 150 g clear jar · worked example
Built from the shadow-run differences · every temperature is from a page or the maker's own written SOP figure
| # | Do | Number and tolerance | Check |
|---|---|---|---|
| 1 | Take materials from the labelled lots for today | — | Lot codes copied onto the batch sheet |
| 2 | Scale on grams; tare the pot; weigh wax | 138 g per candle | Weight written down |
| 3 | Pre-warm clean, dry jars; set wicks with a centring device | — | Tick |
| 4 | Melt; stir; read the centre with a probe | 85°C (your SOP figure, inside the page's 80–90°C) | Reading written down |
| 5 | Tare the pot again; weigh the oil straight into the wax | 12 g per candle; no cups | Weight written down |
| 6 | Stir slowly with a bamboo stick, scraping base and sides | 2 minutes on a timer | Timer, tick |
| 7 | Read the probe; pour | 80–85°C (jar page: hot pour up to 85°C) | Reading written down |
| 8 | Cool on the marked shelf, spaced, away from fans and AC | Fan off in the cooling area | Tick |
| 9 | No finishing step unless written here | — | Any rework noted |
| 10 | Batch code on each base; two retained candles | — | Codes written down |
Two minutes of stirring is a figure CSI's pages state only for Eco Soy CSI 400 ("stir gently for 2 minutes, and pour directly"). For CSI 464 it is the worked example's written choice, taken from operator A. The 85°C addition is likewise the maker's own figure inside the page's range. Your instruction should carry the numbers your reference maker actually uses, checked against your wax page. Keep the first version on paper beside the melter, and change it only after a batch made from the new version passes.
Prove it with a second run
Both people make a batch from the instruction, again with coded candles judged blind at the same cure age. If B's candles now match A's, the instruction has captured the knack. If one path still differs, go back to that path's rows. Keep the observation card: when you hire a third person, it's their training checklist. When a fault turns up later, the defect cross-tab shows whether it follows a person or a lot.What not to buy for an operator problem
Two people, one formula. Buying a new formula gives them two things to make differently.
The candles are the second maker's, and so are the fixes: the scraped pot, the probe reading, the pre-warmed jar, the fan switched off. Very little of that is bought. The purchases that do make sense are the ones that let both stations meet the same numbers: a scale and a thermometer at the second station (₹708.00 for one of each) if it doesn't have them, and a standard stirring tool and centring device if the instruction names them.
Don't raise the load for B's candles. B's scent is weaker because less oil reaches the wax and it goes in hotter, not because 8% is too low. Raising B to 10% (15 g per 150 g; 9%, 13.5 g, is the cautious top rung on CSI 464 because the ceiling's basis isn't stated) would make two formulas out of one. Don't change wax for B's rough tops while A's tops from the same bag are fine. Don't buy a bigger scale because weights "seem off" until both stations' scales have read the same reference item.
If the second maker's station turns out to be the cause (the swap in the decision table), the fix is equipment: a scale or probe that disagrees, or a melter that runs hot. The equipment qualification run is the test for the melter. If the candles differ with the season rather than the person, that's a different post (rough tops in certain months; the AC-room move if one station sits near a vent).
Scale, sticks, probe, centring and the oil
Five items: the tools the worked-example instruction names, and the oil its formula uses. They are chosen on page statements, price and stock on 26 September 2026; CSI has no data on operator performance, so nothing is ranked on results. Per production candle in the worked example, the oil is ₹47.08, the wax ₹70.02, and the whole candle ₹217.40 with jar and wick.
1
tool · one scale per station
Candle Making Weighing Scale
The observation sheet in the worked example found oil weighed two ways, and the fix is the same scale habit at both stations: tare the pot, weigh the oil straight into it. The page describes a digital scale whose "large, easy-to-read LCD display shows measurements in grams or ounces", with "one-button operation". It states no capacity or resolution, so check both stations' scales against the same reference item before the shadow run, and lock both on grams. Argued against our own interest: if both stations already have scales that agree on the same item, you don't need another one. The fix is the habit, not the hardware.
| Size | Price | Per unit | What it covers |
|---|---|---|---|
| Single | ₹354.00 | ₹354.00 | one per station, so nobody borrows the "good" scale (capacity and resolution not stated on the page) |
A second station: one scale, one probe. Buy the scale — ₹354.00
2
tool · the same stirring tool for everyone
Bamboo Stirring Sticks for Mixing Wax
In the worked example, the two operators stirred with different tools and at different speeds: a slow two-minute stir scraping the base against a 30-second whisk. The page describes a "Perfect length for blending fragrances & dyes in melted wax". A standard stick doesn't make a stir correct, but it takes one variable out and makes "scrape the base and sides" something you can write down and watch. Per stick it is ₹23.60 from the pack of 5 and ₹18.88 from the pack of 100. Honest note: any clean, dedicated, non-absorbent stirrer works. The time and the scraping matter more than the material.
| Size | Price | Per unit | What it covers |
|---|---|---|---|
| Pack of 5 | ₹118.00 | ₹23.60 | a trial: one stick per station plus spares |
| Pack of 50 | ₹1,062.00 | ₹21.24 | a season of batches at two stations |
| Pack of 100 | ₹1,888.00 | ₹18.88 | a team: fresh sticks per scent |
From ₹18.88 a stick in the pack of 100. Buy a pack of 5 — ₹118.00
3
tool · the numbers in the work instruction
Pen Thermometer For Candle Making
Two of the rows on the worked-example sheet were temperatures judged by eye: oil "when it looks clear" and a pour "right after stirring". A work instruction can only say "add at 85°C, pour at 80–85°C" if each station can read it. The page describes a tool to "monitor the temperature of your candle wax", "designed for accuracy", and states no range or accuracy, so check each probe in stirred ice water (close to 0°C). If the stations' probes disagree, you have found a difference before you have watched anyone. Argued against our own interest: one checked probe shared between stations works if both people actually use it at each step.
| Size | Price | Per unit | What it covers |
|---|---|---|---|
| Single | ₹354.00 | ₹354.00 | the add and pour readings in the work instruction, at each station |
Two probes that agree, or one that is shared. Buy the thermometer — ₹354.00
4
tool · takes "by eye" out of the wick
Wick Centering Device (Pack of 5)
The drifted wick is not what caused the rough tops, but the shadow run exposed it, and an off-centre wick changes the pool and the burn (a tendency). The page says these holders "work great for centering and holding wicks straight in the container while the wax sets". The page also lists hole and length measurements; check the fit on your own jar. Honest note: a clothes peg or two chopsticks across the rim does the same job if the work instruction says so. Consistency matters, not the tool.
| Size | Price | Per unit | What it covers |
|---|---|---|---|
| Pack of 5 | ₹118.00 | ₹23.60 | five devices, one per jar being set; buy enough packs for a full pour |
Five per pack, one per jar while the wax sets. Buy a pack of 5 — ₹118.00
5
oil · white floral · the worked example's scent
Jasmine Fragrance Oil
The worked example's formula is Jasmine at 8% of total weight in CSI 464. The page describes it as "sweet, floral, and slightly musky with a timeless luxurious aroma" and states "Up to 10% for soy wax with a cure time of 48-72 hours", which sits within CSI 464's own "Up to 10%". For the shadow run both operators must use the same bottle, or the run tests two lots instead of two people. Two half batches take 144 g; a 100 g and a 50 g bottle (₹660.00) leave 6 g. 500 g and 1 kg are the same ₹3.92/g, and the 1 kg is ₹1.00 more than two 500 g bottles (₹3,922.00).
| Size | Price | Per gram | 150 g candles at 8% | For this run |
|---|---|---|---|---|
| 15 g | ₹103.00 | ₹6.87 | 1 | one candle only |
| 50 g | ₹230.00 | ₹4.60 | 4 | with a 100 g bottle, both half batches |
| 100 g | ₹430.00 | ₹4.30 | 8 | with a 50 g bottle, both half batches (6 g spare) |
| 500 g | ₹1,961.00 | ₹3.92 | 41 | production after the work instruction is proven |
| 1 kg | ₹3,923.00 | ₹3.92 | 83 | production; ₹1.00 more than two 500 g bottles |
Per production candle, the oil is ₹47.08 at the 1 kg price. Buy 100 g — ₹430.00
Two makers for the festive rush? Diwali is 8 November 2026, 43 days from 26 September 2026. Run the shadow run this week, while there is time to write the instruction and prove it with a second batch. Tell us how many stations you are equipping for a quote on scales, thermometers, sticks, CSI 464 and Jasmine, with a GST invoice and a dispatch date.
WhatsApp a Diwali quote
The CSI principle
Write down the knack.
When two people get different candles from the same lots on the same day, the difference is in steps that only one of them knows. Watch both, write the winning steps down with numbers and checks, and the formula becomes something anyone can make.
"Your best maker isn't using a different formula. They're following ten steps nobody wrote down."
— CandleMakingSuppliesIndia
Why trust this guide
CandleMakingSuppliesIndia sells the scale, thermometer, stirring sticks, centring device, wax and oil named here, and does not sell finished candles. This page still tells you that an operator problem isn't fixed by any wax, oil or additive we sell, that a station with a working scale needs no second one, and that a peg across the jar does a centring device's job.
Every price was verified on CSI's live store on 26 September 2026. Every item in the pick tables is in stock on that date, and the tables are built to flag any size that is not. Page wording (scale, stirring sticks, centring device, thermometer, Jasmine, CSI 464, the 150 g jar) is quoted as captured.
The observation card, the readings (85°C, 92°C, 82°C, 88°C), the 2 g left in the cup and the work instruction are a worked example. The symptom-path ranking and the decision rule are editorial judgement, and CSI has no operator or defect data. For bulk pricing, GST invoicing, and MSDS and IFRA documentation on request, message us on WhatsApp at +91 7397976926.
Frequently asked questions
Why do candles made by different people with the same recipe turn out different?
Because the recipe lists ingredients, not steps. How the oil is weighed and transferred, the temperature it goes in at, stir time, jar temperature, pour temperature and the cooling spot all vary by person unless they're written down. A shadow run on the same day with the same lots shows which ones differ.
What causes rough tops on soy candles when only one person makes them?
Usually a habit on the heat-and-cooling path: pouring hotter or cooler than the other maker, cold jars, cooling under a fan or with jars touching, or whisking in air. Watch both people pour the same lots on the same day and compare the probe readings and cooling spots.
How do I standardise candle making across employees?
Run a shadow run, then write a one-page work instruction from the differences: each step with its number and tolerance (grams, temperature, stir time) and how the person proves it. Both people make a batch from it, and the candles are judged blind at the same cure age.
Can weighing fragrance oil in a separate cup change the fragrance load?
Yes, a little. Oil left in an unscraped cup never reaches the wax. In the worked example, 2 g left from 72 g put the candles at 7.80% instead of 8%. Tare the pot and weigh the oil straight into the wax.
Should I change my wax if one employee's candles have rough tops?
Not if the other maker's candles from the same bag are fine. The wax is shared, so it can't explain the difference between them. Standardise pour temperature, jar prep, stirring and cooling first.
How long should I stir fragrance oil into soy wax?
Follow your wax page if it states a time; Eco Soy CSI 400's page says "stir gently for 2 minutes". Otherwise use the time your reference maker uses, write it down, and time it, scraping the base and sides so everyone stirs the same way.
Before you blame the wax or the employee
Watch both people make the same half batch, then write the steps down.
Same lots, same day, one observer with a stopwatch and a probe, candles coded and judged blind at the same cure age. Every difference on the symptom's path becomes a numbered line with a number and a check, and both people prove the page with a second batch.
Buy the Weighing Scale — ₹354.00 Send your observation sheet
Continue the read — same formula, suddenly different result
- I Made the Exact Same Candle Formula as Last Month but This Batch Has Weaker Hot Throw — Which Raw Material Should I Investigate First?
- My Candle Formula Is Written in Percentages but Production Results Still Vary Between Batches — What Additional Process Information Should I Record?
- How Do I Create a Candle Batch Sheet That Records Wax Lot, Fragrance Lot, Wick Lot, Temperatures and Timings so I Can Trace Future Failures?
- My Candle Business Is Scaling and Random Quality Problems Are Increasing — How Do I Determine Whether the Problem Is Raw-Material Variation or Production Inconsistency?
- I’m Using the Same Formula but Different Melting Equipment — Can Heating Speed and Temperature Control Change the Final Candle?
- My Candle Tops Become Rough Only During Certain Months of the Year — Should I Change Pouring Temperature Based on Workshop Conditions?
- I Moved My Candle Production into an Air-Conditioned Room and My Usual Formula Now Cools Differently — Should I Adjust My Process?
- I Increased My Batch Size from 1 Kg to 10 Kg and the Finished Candles No Longer Perform Exactly Like the Test Batch — What Changed?
Editorial standards & sources
About this guide: part of CSI's cluster on the same formula giving a different result (3261–3280). It covers two makers getting different candles from one formula: why shared lots rule out materials, a symptom-path table labelled as judgement, the shadow run (two half batches, same lots, same day, one observer, blind judgement), a decision rule including the watcher effect, and a one-page work instruction built from the differences. Which fields to record and the batch-sheet layout are linked, not repeated.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 — Bamboo Stirring Sticks for Mixing Wax, Bamboo Wick Holder, Complete Candle Making Course Kit for Beginners, Hot Air Gun, Jasmine Fragrance Oil. They are general product reviews, not assessments of the diagnostic advice on this page. Names, star ratings, dates and products are as recorded by Judge.me and wording is unedited. The reviews from Lalitha Jagan, S.A., Lalitha Jagan, Ashwini, Niharika S, T.S. are published but not recorded as verified, and carry no badge. Reviews below five stars are included as published, not filtered out.
Figures verified 26 September 2026, CSI live pricing: Candle Making Weighing Scale ₹354.00; Pen Thermometer For Candle Making ₹354.00; Bamboo Stirring Sticks for Mixing Wax Pack of 5 ₹118.00, Pack of 50 ₹1,062.00, Pack of 100 ₹1,888.00; Wick Centering Device (Pack of 5) ₹118.00 (₹23.60 per device); Jasmine Fragrance Oil 15 g ₹103.00, 50 g ₹230.00, 100 g ₹430.00, 500 g ₹1,961.00, 1 kg ₹3,923.00; Luxury Soy Wax CSI 464 1 kg ₹507.40 (₹0.51 per g); Clear Glass Jar with Golden Lid (150 gram) Pack of 20 ₹1,888.00; Eco Candle Wicks Thin (C1) 20 ₹118.00. All in stock on 26 September 2026. Per gram = price ÷ grams; per unit = pack price ÷ units; two decimals. Worked costs use the exact per-gram price, then round.
Non-price figures: load is a percentage of total candle weight (150 g at 8% = 12 g oil + 138 g wax; 9% = 13.5 g; 10% = 15 g); B's 7.80% is 70 g of oil in 898 g. Page figures: CSI 464 pour 80–90°C and up to 10%; Jasmine up to 10% for soy with a cure of 48–72 hours; 150 g clear jar hot pour up to 85°C; Eco Soy CSI 400 "stir gently for 2 minutes". These are formulation limits, not regulatory limits. The 85°C addition and 2-minute stir for CSI 464 are the worked example's own SOP choices. All observer readings and the six-candle half batch are a worked example; the cause ranking and decision rule are editorial judgement; cure ages of day 7 and 14 are common practice. Costs exclude labour, freight, packaging and GST. Diwali 8 November 2026 is a calendar fact.