My 6.5 cm Candle with 8% Coffee Fragrance Has a Small Flame and Leaves Wax Around the Edges — Should I Increase Wick Size or Reduce Fragrance Load First?
शेयर करना
Eco C2 ₹94.40 for 10 · every C2 pack in stock Roasted Coffee 50 g ₹230.00 · page: candles 6–10% CSI 464 500 g ₹260.00 · up to 10% load
6.5 cm jar · 8% coffee · small flame, edge wax
Wick up first, load down only as the fallback, in one four-candle pour.
★★★★★
"The fragrance was really amazing"
Akanksha SharmaVerified buyer · Jul 2026
Roasted Coffee Fragrance
★★★★★
"Coffee fragrance is quite strong and feels like yummy"
Arminder KaurVerified buyer · Apr 2026
Roasted Coffee Fragrance
★★★★★
"Good"
R.G.Jun 2024
Roasted Coffee Fragrance
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★☆
"Good quality wax"
Arminder KaurVerified buyer · Oct 2025
Eco Soy CSI 400
★★★★★
"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
★★★★★
"The fragrance was really amazing"
Akanksha SharmaVerified buyer · Jul 2026
Roasted Coffee Fragrance
★★★★★
"Coffee fragrance is quite strong and feels like yummy"
Arminder KaurVerified buyer · Apr 2026
Roasted Coffee Fragrance
★★★★★
"Good"
R.G.Jun 2024
Roasted Coffee Fragrance
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★☆
"Good quality wax"
Arminder KaurVerified buyer · Oct 2025
Eco Soy CSI 400
★★★★★
"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
Reviews collected and published through Judge.me on candlemakingsuppliesindia.store. They are general reviews of the products named on each card, not assessments of the advice set out below. Wording is unedited.
✓ Prices verified 29 September 2026, stock checked per size ✓ MSDS and IFRA documentation on request on WhatsApp ✓ Raw materials only — CSI does not sell finished candles
CSI Wick Lab · 6.5 cm Jars
A small flame and a ledge of wax with 8% coffee is a heat shortage, not an overdose. Keep the load that makes your product, step the wick one rung, and pour the lower load alongside only as a fallback.
4 candles
8% on C2 × 2 first, 6% on C1 × 2 as the fallback · CSI live pricing, September 2026
Quick answers — read this first
My 6.5 cm candle with 8% coffee has a small flame and leaves wax around the edges. Wick up or load down first? Wick up first. A small flame plus an edge ledge is the pattern of too little heat, and 8% sits mid-range on Roasted Coffee's stated 6–10%. The load defines your product, so keep it and step the wick one rung: C1 to C2.When does lowering the load come first? When the load is at or near the top of its range, when the symptom is soot or a carbon cap rather than under-melt, or when one rung up overshoots. At 8% of a 6–10% oil with a cool flame, none of those applies yet.
What is the test? Four candles, poured the same day: 8% on C2 × 2 (the first move) and 6% on C1 × 2 (the fallback). Read the 6% cell only if C2 overshoots or still leaves the ledge.
What does it cost? In 100 g fills in your own jars: 28 g of Roasted Coffee, 372 g of CSI 464, two C2 and two C1 wicks: ₹352.92 of materials. From the shop, if you already own C1: ₹584.40.
The short answer
The verdict: step the wick before the load. 8% coffee on a 6–10% page is not overloaded, and a cool, narrow burn is a heat shortage.
The order (our rule): free checks first (session length, centring, trim, cure, inside diameter), then one rung up at the same load, then the lower load as a fallback, never both changes in one candle.
The plan: cell A, 8% on C2 × 2; cell B, 6% on C1 × 2, poured the same day. C2 passes at 8% → done. C2 overshoots → read cell B. Both fail → it is the jar, the wax or the centring.
The honest limit: C2 is the larger of CSI's two sized, tabbed Eco wicks, and there is no sized, tabbed wick between C1 and C2. CSI lists no 6.5 cm jar; 6.5 cm is yours.
In this guide
Your candle and the two cells, in side section at true scale for a jar 6.5 cm across (58 mm inside on our 0.35 cm wall assumption; the 7 cm height is also assumed). The left panel draws the problem as described: a small flame and a ledge of wax on the glass. The middle cell is the first move; the dashed right cell is the fallback, poured alongside but read only if the middle one fails. Costs per candle are declared worked examples.
The first move · C2 ₹94.40 for 10 · every C2 pack in stock
Eco Candle Wicks Thick (C2): one rung up, same 8%
Roasted Coffee · page: candles 6–10% · 50 g ₹230.00
Keep 8%: it sits mid-range and it is the product your customers smell
WhatsApp +91 7397976926
Send us your four-candle results and we will read them against the decision table
Straight answer
My 6.5 cm candle with 8% coffee fragrance has a small flame and leaves wax around the edges. Should I increase wick size or reduce fragrance load first?
Increase the wick first, after five free checks. A small flame with a ledge of wax on the glass is the classic under-wicked pattern: not enough heat reaching the edge. Roasted Coffee's page states "candles (6-10%)", so 8% is mid-range, not overloaded, and it is the strength your customers buy. Cutting it to 6% takes 25% of the oil out of the product to solve a heat problem, and it may not solve it. So: confirm the sessions were long enough (about 2.3–2.6 h by the rough one-hour-per-2.5 cm rule), that the wick is centred, trimmed to about 5–6 mm and not shorter, the candle cured (the page says at least 48–72 hours), and that you know the inside diameter. Then pour four candles on one day: 8% on C2 × 2, the first move, and 6% on C1 × 2, the fallback. If C2 reaches the glass by burn 2 or 3 with a flame of about 2.5–5 cm and no heavy carbon cap, that is your candidate at 8%; take it to full life. Only if C2 runs hot or capped do you read the 6% cell, because at 6.5 cm there is no CSI wick in between. The load comes first only when the load is already near the top of its range or the symptom is soot rather than under-melt.
One line: mid-range load plus a cool, narrow burn = wick up first; the lower load is the fallback cell, poured alongside and read only if C2 overshoots.
For cell A: Eco C2, 10 wicks for ₹94.40 (₹9.44 a wick, the same in every pack). If you need fresh oil and wax for the plan: Roasted Coffee 50 g ₹230.00 and CSI 464 500 g ₹260.00, ₹584.40 in all. If the free checks fix it, buy nothing.
Eco C2 10-pack — ₹94.40
What a small flame and an edge ledge are telling you
Two symptoms, one cause more often than not: the flame isn't making enough heat for the width.
Edge wax is the pool failing to reach the glass. A small flame is the engine that fails to push it there. Together, and burn after burn, they usually mean the wick delivers too little fuel for the jar. That is under-wicking, the mirror image of the fast-pool, big-flame case in 6 cm.
Put numbers on it. If your 6.5 cm is the outside, the inside is about 5.8 cm on a 0.35 cm wall (our assumption), a pool of 26.42 cm² to the glass; if 6.5 cm is the inside, 33.18 cm². A ledge of about 0.7 cm all round, a 44 mm pool in a 58 mm jar, leaves 15.21 cm² melted and 42% of the surface solid. "A little wax at the edges" can be two-fifths of your candle. CSI lists no 6.5 cm jar (the nearest listings are 6 cm and 7 cm), so measure yours at the rim, middle and base; the 6–7 cm hub shows how.
Why does coffee make it likelier? Dense, sweet gourmands (coffee, vanilla, chocolate, caramel) are often reported by candle makers to need a wick adjustment, compared with light florals and herbals. Roasted Coffee's notes run from coffee bean and espresso into "a warm vanilla and caramel base". That is a tendency, not a CSI measurement, and it is also why a wick that works for your lavender can be one rung short for your coffee. A fragrance-first view of the same symptom is the weak-flame buy-first post.
Don't confuse this with a load-driven flame
A flame that shrinks as you raise the load on one wick is a different question (more oil can make a flame smaller, a tendency), and the 6%-to-10% flame post owns it. Here the load hasn't changed; the candle has simply never burned hot enough.Five free checks before either change
Many "wick too small" candles are candles that were never given a fair burn.
Each of these produces a small flame or edge wax by itself. Rule them out on the candle you already have; none costs anything.
1
Session lengthBurn for about 2.3–2.6 hours (the rough one-hour-per-2.5 cm rule on a 5.8–6.5 cm inside), or until the pool meets the glass. A one-hour burn in a 6.5 cm jar leaves edge wax with almost any wick.
2
Trim lengthA wick trimmed right down to the wax gives a small flame. Aim for about 5–6 mm (one CSI trimmer page says 1/4 inch), then leave it alone through the session.
3
CentringLook from above: is the wick in the middle, and upright? A wick 3 mm off-centre in a 58 mm jar leaves one side 6 mm further from the flame, and that side keeps its wax.
4
CureRoasted Coffee's page says "Always cure soy wax candles for at least 48-72 hours before burn testing"; many makers wait about a week. A candle lit on pouring day tells you little.
5
Still air and a second burnA fan or AC vent bends the flame and cools one side. And one burn is not a verdict: log burns 1–3, as the hub's catch-up rule sets out.
Mistake: ordering C2 after one short first burn. What happens: you change the wick for a candle that only needed a three-hour session, and the C2 candle then runs hot in a 6.5 cm jar. Fix: if the ledge closes by burn 2 or 3 with proper sessions, keep C1 and take it to full life. Only a ledge that persists at burn 3, with a centred wick and still air, sends you to the plan below.
The order-of-operations rule
Change the thing that fixes the cause, and keep the thing that makes the product.
"Wick up or load down?" has no universal answer, but it has a reliable order once you ask two questions: where is the load in its stated range, and is the symptom too little heat or too much carbon? This table is our rule, labelled as judgement.
Wick first or load first · by load position and symptom
Load position is against the oil page's stated candle range, inside the wax ceiling · symptoms after the five free checks · our judgement
| Load position | Symptom | First move | Fallback |
|---|---|---|---|
| Mid-range (8% on 6–10%, this post) | Small flame, edge wax | One rung up at the same load | Lower load on the original wick, as a parallel cell |
| Mid-range | Carbon cap or soot, pool fine | Swap the oil or step the wick down; see the vanilla-swap post | Lower load |
| Top of range (10% on 6–10%) | Small flame, edge wax | Both are fair; a 2×2 separates them (the load × wick 2×2) | — |
| Top of range | Carbon cap, soot | Load down first (the coffee load step-down) | Wick change |
| Bottom of range (6% on 6–10%) | Small flame, edge wax | Wick up; the load has nowhere lower to go on the page | A different oil or jar |
Why the wick first at mid-range? Three reasons. It targets the cause: a cool, narrow burn is short of heat, and a bigger wick adds heat; removing oil only commonly makes a flame burn a little more easily (tendency), which may or may not reach the glass. It keeps the product: 8% is the scent strength you chose; 6% cuts the oil by 25%. It is honest about cost: the C2 route costs ₹3.54 more per candle than your current build; the 6% route saves ₹8.16 (oil saved ₹9.20, less ₹1.04 of extra wax). Over 100 candles that is ₹354.00 more against ₹816.00 less. The cheaper route is the load cut, and we still put it second, because a cheaper candle that smells weaker is not the candle you designed.
Mistake: changing both at once: pouring 6% on C2 "to be safe". What happens: if it works you don't know which change did it, so every future coffee candle carries both, and if it fails you've learned nothing. Fix: one change per cell. The four-candle plan changes the wick in one cell and the load in the other, never both in one candle.
The four-candle plan, in grams and rupees
Two cells, two candles each, one pour day. The fallback costs less than a tenth of a production batch to have ready.
Hold everything but the cell's one change: same CSI 464 bag, same Roasted Coffee bottle, same jar batch, 100 g fill (8% = 8 g of oil + 92 g of wax; 6% = 6 g + 94 g), same pour temperature, same cure, same room. Your existing 8% C1 candle is the reference; it is not counted, but keep burning it alongside. If you have none left, pour one more 8% C1 as a control (the 22 g left in the bottle covers it).
Bill of materials · four-candle plan · worked example
Roasted Coffee 50 g · CSI 464 500 g · Eco C2 10 · Eco C1 (your stock, or the 20-pack) · your own jars · CSI live pricing, 29 September 2026
| Item | Size bought | Cell A: 8% on C2 × 2 | Cell B: 6% on C1 × 2 | Cost of what is used |
|---|---|---|---|---|
| Roasted Coffee Fragrance | 50 g, ₹230.00 (₹4.60/g) | 2 × 8 g | 2 × 6 g | 28 g: ₹128.80 (22 g left) |
| Luxury Soy Wax CSI 464 | 500 g, ₹260.00 (₹0.52/g) | 2 × 92 g | 2 × 94 g | 372 g: ₹193.44 (128 g left) |
| Eco C2 | 10 wicks, ₹94.40 | 2 | — | ₹18.88 (8 spare) |
| Eco C1 | your stock, or 20 for ₹118.00 (10-pack out of stock) | — | 2 | ₹11.80 |
| Materials consumed | 4 candles | ₹352.92 | ||
Cash outlay: ₹584.40 for the oil, wax and C2 pack if you have C1 and jars; ₹702.40 if you also need the C1 20-pack. Per candle, excluding the jar: ₹90.54 for your current 8% C1 build, ₹94.08 on C2 and ₹82.38 at 6% on C1. All worked examples; costs exclude jars, labour, freight, packaging and GST.
Why pour the fallback now, not later
Cure is the slow part. Pouring cell B on the same day costs ₹164.76 in materials and saves a second pour, a second cure of about a week, and the doubt of comparing candles poured a fortnight apart. If cell A passes, cell B becomes spare candles for a sampler or a burn-time log.Pour CSI 464 within the page's stated "Pour Temperature 80°C – 90°C". Your 6.5 cm jar isn't a CSI listing, so we can't quote a heat rating for it; pour at the low end and pre-warm clean jars (our judgement). Label the bases A1, A2, B1, B2, and burn all four, plus the reference, side by side in still air, in sessions of about 2.5–3 hours with full cool-downs between.
Reading the four candles
Cell A answers the question. Cell B only speaks if cell A fails.
Log each candle for burns 1–3: the ledge at four points around the glass, trimmed flame height against a ruler behind the jar, pool depth at the end of the session with a skewer, and any carbon cap or soot. Then read this table, which is our judgement, labelled.
Decision table · cell A (8% on C2) then cell B (6% on C1)
"Passes" = both candles reach the glass by burn 2–3, trimmed flame about 2.5–5 cm, no heavy cap or soot · then full life decides
| Cell A | Cell B | Decision | Then |
|---|---|---|---|
| Passes | Anything | C2 at 8%. The wick was one rung short; the product is unchanged | Full life on C2 to about 1 cm left; watch the final third |
| Reaches the glass, but flame above about 5 cm, a cap or soot | Passes | C1 is too cool and C2 too hot at 8%; 6% on C1 is a workable build | Smell B against your 8% reference in the same room; if the weaker scent is acceptable, full life at 6% on C1 |
| Reaches the glass, runs hot | Still leaves the ledge | Your jar sits between C1 and C2 at both loads | CSI has no sized wick between them; ask us, or try another supplier's in-between size |
| Still leaves the ledge | Still leaves the ledge | Not a rung problem: re-check the inside diameter, centring, fill depth and wax | Don't reach for Cotton Braided; its page describes it for candles "exceeding 8 cm" |
| One candle passes, one doesn't | — | Not decided | Pour two more of the split cell; 2 candles' worth of oil is left |
Whichever build wins, it is a candidate, not an approval. Carry two candles to about 1 cm left: in a small jar the final third is where a one-rung-up wick commonly shows too much heat, and the acceptance-gates post lists what to check at each depth. Judge the glass by what you see, flame height and position and any darkening, never by touch.
Argued against our own interest: if C2 overshoots and 6% smells too weak, the honest answer may be that CSI's range doesn't have your wick. C1 and C2 are CSI's only sized, tabbed rungs for a jar this size (Cotton Braided's page places it above 8 cm), with nothing between them. We would rather say that than sell you a Cotton Braided pack its own page doesn't describe for a 6.5 cm jar.
If you later move this coffee candle into an 8 cm jar at 10% and it starts to cap, the question flips to load-first; that is the 8 cm coffee post. If the pool is fine but the room barely smells of coffee, that is a surface-area question, the 7 cm room-fill post, not a wick one.
What to buy, and what to skip
Four items, in the order the plan uses them, chosen on page statements, price and stock on 29 September 2026. CSI publishes no wick-performance data, so nothing is ranked on burn results.
What not to buy: Cotton Braided Wicks for a 6.5 cm jar: its page describes it for candles "exceeding 8 cm". Vybar (₹156.00): its page talks about fragrance retention and hardness, not flame size. A coffee "boost" from a second coffee oil: Coffee Vanilla Tobacco's page states "7-9% soy wax", Moca Coffee is in stock only at 50 g and 100 g, Coffee Blast only at 50 g; swapping oils changes the product and the wick question. The Roasted Coffee 1 kg or a 100-pack of C2 before full life. Anything, if the five free checks close the ledge.
1
wick · the first move · one rung up
Eco Candle Wicks — Thick (C2), 10-pack
Cell A's wick. The Eco listing states no size or jar range in the text we captured; CSI's 200 ml Salsa jar pages say "Pairs well with C2 Eco Wicks" but give no body diameter, so treat that as one bracket rung, not a rule for 6.5 cm. Every C2 pack is in stock on 29 September 2026 at the same ₹9.44 a wick, so the 10-pack is the right buy: two for the plan and 8 for repeats and full life. Honest limit: C2 is the larger of the two sized, tabbed Eco wicks. If it overshoots at 8%, CSI has no sized, tabbed wick between C1 and C2.
| Pack | Price | Per unit | What it covers here |
|---|---|---|---|
| Thick (C2) / 10 | ₹94.40 | ₹9.44 | cell A (2 wicks), 8 spare for a repeat and full life |
| Thick (C2) / 20 · 50 · 100 | ₹188.80 · ₹472.00 · ₹944.00 | ₹9.44 | only after C2 has passed full life |
| Thick (C2) / 500 · 1000 | ₹4,720.00 · ₹9,440.00 | ₹9.44 | production; no saving per wick |
| Thin (C1) / 10 | ₹59.00 — Out of stock | ₹5.90 | Out of stock on 29 September 2026 |
| Thin (C1) / 20 | ₹118.00 | ₹5.90 | cell B, only if you have no C1 left |
Cell A: 2 × C2 = ₹18.88. Buy C2 10 — ₹94.40
2
fragrance oil · coffee gourmand · the oil in the question
Roasted Coffee Fragrance
The page states "candles (6-10%)" and describes "fresh coffee bean top notes, dark chocolate and espresso heart, and a warm vanilla and caramel base": a gourmand with the dense, sweet structure commonly linked to needing more wick (a tendency, not CSI data). 8% sits mid-range, 6% at the bottom. The page asks you to "cure soy wax candles for at least 48-72 hours before burn testing". No vanillin figure or wick advice in the text we captured. Every size in stock on 29 September 2026. The 50 g covers the plan (28 g) and leaves 22 g, 2 more candles at 8%. Argued against our own interest: the 1 kg is ₹0.86 a gram cheaper than the 50 g, but don't buy it until one build has passed full life.
| Size | Price | Per gram | 100 g candles at 8% | 150 g candles at 8% |
|---|---|---|---|---|
| 15 g | ₹93.22 | ₹6.21 | 1 | 1 |
| 50 g | ₹230.00 | ₹4.60 | 6 | 4 |
| 100 g | ₹390.00 | ₹3.90 | 12 | 8 |
| 500 g | ₹1,890.00 | ₹3.78 | 62 | 41 |
| 1 kg | ₹3,738.00 | ₹3.74 | 125 | 83 |
The plan: 28 g = ₹128.80. Buy 50 g — ₹230.00
3
wax · the worked example's soy
Luxury Soy Wax CSI 464 (Flakes Form) For Container Candles
The worked example's wax. The page states "Fragrance Load Up to 10%" and "Pour Temperature 80°C – 90°C"; 8% and 6% are both inside the ceiling on either reading of its basis. If you pour a different soy, test in yours; a wick result does not carry across waxes. The 500 g bag covers the four candles (372 g) with 128 g left, and it is only ₹0.01 a gram dearer than the 1 kg, so for a four-candle plan the 500 g is the sensible buy.
| Size | Price | Per gram | What it covers here |
|---|---|---|---|
| 500 g | ₹260.00 | ₹0.52 per g | the whole plan (372 g), 128 g left |
| 1 kg | ₹507.40 | ₹0.51 per g | the plan plus a full-life repeat |
| 5 kg | ₹2,537.00 | ₹0.51 per g | after the build passes; flat per gram from 1 kg |
| 10 kg | ₹5,074.00 | ₹0.51 per g | production |
The plan: 372 g = ₹193.44. Buy 500 g — ₹260.00
4
tool · rule out a leaning wick first
Wick Centering Device (Pack of 5)
Before you blame the wick size, rule out a wick that set off-centre: in a 5.8 cm inside, a wick 3 mm off-centre sits 26 mm from one wall and 32 mm from the other, and the far side leaves exactly the kind of edge wax you are describing. The page describes a wooden bar with one "Hole Dia 0,15" (4mm)". Argued against our own interest: two ice-cream sticks and a clip do the same job; buy these only if you pour several candles at once. Four holders cover the whole plan.
| Pack | Price | Per unit | What it covers here |
|---|---|---|---|
| Pack of 5 | ₹118.00 | ₹23.60 | four plan candles held at once while the wax sets |
₹118.00 for five, reusable. Buy 5 — ₹118.00
Diwali is 8 November 2026, 40 days from 29 September 2026. A coffee candle is a common winter and gifting line. Pour the four-candle plan this week, cure about a week, read burns 1–3 by mid-October, and the full-life burns fit before Diwali. We will quote Roasted Coffee, C2 wicks and CSI 464 with a GST invoice and a dispatch date.
WhatsApp a Diwali quote
The CSI principle
Fix the heat, keep the scent.
When the load sits mid-range and the burn is cool and narrow, step the wick one rung first. Pour the lower load alongside as a fallback, and read it only if the bigger wick overshoots. One change per candle, always.
"Your customers bought the coffee. Don't take a quarter of it away to fix a wick."
— CandleMakingSuppliesIndia
Why trust this guide
CandleMakingSuppliesIndia sells the wicks, oil and wax named here, and does not sell finished candles. This page still puts five free checks before any purchase, shows that the lower-load route is the cheaper one per candle, and says plainly that CSI has no sized wick between C1 and C2 if your jar needs one.
Every price was verified on CSI's live store on 29 September 2026. Stock was checked per size: every size of Roasted Coffee and every C2 pack is in stock on that date; the Eco C1 10-pack is out of stock and flagged. Load, cure and temperature wording is quoted from the product pages; where a page is silent in the text we captured, we say so.
The order-of-operations rule, the plan and the decision table are our judgement; the 100 g fill, the 0.35 cm wall, the 7 cm jar height and the 7 mm ledge are worked-example assumptions; melt-pool pace and flame range are commonly cited rules of thumb; the link between dense gourmand oils and wick size is a commonly reported tendency, not CSI data. CSI publishes no wick-performance data. For bulk pricing, GST invoicing, and MSDS and IFRA documentation on request, message us on WhatsApp at +91 7397976926.
Frequently asked questions
Should I increase the wick size or reduce fragrance load first?
If the load sits mid-range on its page and the burn is cool and narrow, increase the wick first; the load is your product. Reduce the load first when it is near the top of its range or the symptom is soot or mushrooming rather than under-melt.
Why does my coffee candle leave wax around the edges?
Commonly because the wick is making too little heat for the jar width, and dense gourmand oils like coffee often need a slightly bigger wick than light florals. Rule out short burns, an off-centre wick, a very short trim and too little cure first.
What fragrance load should I use for coffee fragrance oil in soy wax?
CSI's Roasted Coffee page states "candles (6-10%)". CSI 464's page states up to 10%. Test within that range; 8% is mid-range. The best-performing load is found by testing, not by the maximum.
Is a small candle flame a sign the wick is too small?
Often, when it comes with edge wax that persists to burn 3 in proper sessions. A wick trimmed too short, a draught, a fresh candle or a drowning wick can also give a small flame, so check those first.
What wick should I use for a 6.5 cm candle jar?
No single wick fits every 6.5 cm candle. With CSI wicks, bracket Eco C1 against Eco C2 at your load, two or three candles each. Cotton Braided's page describes it for candles over 8 cm, so it is outside this bracket.
Will lowering fragrance load fix tunnelling?
Sometimes a little: lower loads often burn a bit more easily (a tendency). But it also weakens the scent, and it rarely fixes a wick that is simply too small. Run it as a fallback cell beside the bigger wick, not instead of it.
Before you cut the coffee
Five free checks, then 8% on C2 × 2 with 6% on C1 × 2 as the fallback.
Burn full sessions, trim to about 5–6 mm, centre, cure, and measure the inside. If the ledge persists, pour the four-candle plan (₹352.92 of materials) and read cell A first: C2 at 8% passing ends the question. Send us your results.
Shop Eco C2 wicks Send your results on WhatsApp
Continue the read — 6–7 cm jars, single wick
- I’m Using a 6 cm Diameter Jar with Soy Wax and 8% Lavender Fragrance Oil — My Candle Tunnels Slightly on the First Burn; Should I Increase the Wick or Continue Testing?
- I’m Using an 8 cm Jar with 10% Coffee Fragrance and My Wick Keeps Mushrooming — Would Reducing Fragrance Load Potentially Improve the Burn?
- I Changed from 6% to 10% Fragrance in the Same 7 cm Jar and the Flame Became Smaller — Why Can Higher Fragrance Loading Change Wick Performance?
- My 7 cm Jar Burns Perfectly with Unscented Soy Wax but Tunnels After I Add 10% Fragrance Oil — Why Did the Fragrance Change the Wick Requirement?
- My 7 cm Candle Has a Perfect Melt Pool but Very Little Fragrance Fills the Room — How Do I Troubleshoot Hot Throw Without Automatically Increasing Wick Size?
- I’m Choosing a Wick for a 7 cm Soy Candle — How Many Adjacent Wick Sizes Should I Test Before Selecting One for Commercial Production?
- I’m Using a 6.5 cm Jar with Soy Wax and 10% Vanilla Fragrance — Why Does the Wick Mushroom Even Though the Same Wick Burns Cleanly with Lavender?
- I’m Using a 6.5 cm Glass Jar with Soy Wax and 8% Oud Fragrance — Why Does the Wick Struggle After the Candle Has Been Burning for Several Hours?
Editorial standards & sources
About this guide: part of CSI's cluster on 6–7 cm jars with a single wick (4201–4220). It owns the order-of-operations rule for "wick up or load down first" when the load sits mid-range (Roasted Coffee at 8% on a stated 6–10%): free checks, then one rung up at the same load, with the lower load as a parallel fallback cell, in a costed four-candle plan with a decision table.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, Eco Candle Wicks, Eco Soy CSI 400, Roasted Coffee Fragrance. They are general product reviews, not assessments of the wick 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 — Akanksha Sharma, Arminder Kaur, Arminder Kaur. The reviews from R.G., Ashwini, Lalitha Jagan are published but not recorded as verified, and carry no badge. Reviews below five stars are included as published, not filtered out.
Figures verified 29 September 2026, CSI live pricing: Roasted Coffee Fragrance 15 g ₹93.22 (₹6.21/g), 50 g ₹230.00 (₹4.60/g), 100 g ₹390.00 (₹3.90/g), 500 g ₹1,890.00 (₹3.78/g), 1 kg ₹3,738.00 (₹3.74/g); 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 ₹59.00 (out of stock), 20 ₹118.00; Luxury Soy Wax CSI 464 500 g ₹260.00, 1 kg ₹507.40, 5 kg ₹2,537.00, 10 kg ₹5,074.00; Wick Centering Device (Pack of 5) ₹118.00; Cotton Braided Wicks Ready Made 10 ₹120.00; Vybar 50 g ₹156.00. Every other size listed is in stock on 29 September 2026, except Moca Coffee 15 g, 500 g and 1 kg and Coffee Blast 15 g, 100 g, 500 g and 1 kg, which are out of stock. Per unit = price ÷ grams or units, two decimals.
Non-price figures: load is a percentage of total candle weight (100 g at 8% = 8 g oil + 92 g wax; at 6% = 6 g + 94 g; the standard 150 g candle at 8% = 12 g). The 100 g fill, 0.35 cm wall, 7 cm jar height and 7 mm ledge are worked-example assumptions; pool area = π r² on the inside radius. Ceilings are as the pages state (CSI 464 up to 10%, pour 80–90°C; Roasted Coffee 6–10% for candles): formulation limits, not regulatory ones. Melt-pool pace (about an hour per 2.5 cm), depth (about 0.5–1 cm) and flame height (about 2.5–5 cm) are commonly cited rules of thumb. The order-of-operations rule and the decisions are editorial judgement. Costs exclude jars, labour, freight, packaging and GST. Diwali 8 November 2026 is a calendar fact.