How Do I Develop a Reed Diffuser Quality-Control Checklist Covering Clarity, Fragrance Strength, Reed Performance, Leakage, Stability and Packaging?

How Do I Develop a Reed Diffuser Quality-Control Checklist Covering Clarity, Fragrance Strength, Reed Performance, Leakage, Stability and Packaging?

 

Weighing Scale ₹354.00 Beaker 250 ml ₹600.00 Gold bottle 50 ml ₹826.00 / 10
CSI reed diffuser guide · Starting a business and buying wholesale
Catch the slow failures — haze, leaks, drift, tired reeds — at six cheap checkpoints before your customers find them.
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Bamboo Wick Holder
Reviews collected and published through Judge.me on candlemakingsuppliesindia.store. They are general reviews of the wicks and wick tools named on each card, not assessments of the quality-control checklist set out below. Wording is unedited.
Shop reed diffuser bases Get IFRA & MSDS on WhatsApp
✓ Base, bottle, reed and tool prices pulled 14 October 2026 ✓ Oil prices with stock re-checked 14 October 2026 ✓ GST invoicing · MSDS & IFRA documentation on request
Reed Diffuser Business × Quality Control
Six checkpoints, each with how you check, how many and what fails: incoming materials, the batch, the fill, the release against a golden bottle, the pack, and a stability programme of retained bottles. Every acceptance line is your written house standard — no industry one exists.
2.3%
of an example 100-bottle batch's CSI material cost spent on three retained bottles — the cost of answering complaints with evidence · CSI live pricing, October 2026
Quick answers — read this first
What should a reed diffuser QC checklist cover? Incoming materials, batch weights and clarity, fill weight and leaks, release strength against a golden bottle, packing, and stability of retained bottles over time.

How do I check clarity? A sample in clear glass against a white card and a black card at mixing, 24 h and 48 h, then at 7 days. Pass = clear and single-phase.

How do I check fragrance strength? One reeded batch bottle against a reeded golden bottle, blind, in a fixed test room after an hour, on your written scale.

What does it cost? ₹1,780.00 for scale, beaker and a pack of retained-sample bottles, then about ₹585.42 of retained bottles per batch. See the stability log.
The short answer
Answer: Six checkpoints: incoming (against retained samples), batch (weights, density, clarity at 0/24/48 h), fill (±tolerance, cap, inverted leak), release (blind strength vs golden bottle), pack (drop, label) and stability (retained bottles at 7, 30, 90 days).
Why: Most diffuser failures are slow — haze after a cool night, weeping caps, drifting smell, changed reeds — and appear after shipping unless you look for them.
Method: Write how, how many and the fail line for every check before you look; keep a sealed golden bottle and three retained bottles per batch; record lots by order date.
Shop: Weighing Scale · 250 ml beaker · Gold Reed Diffuser Bottle · Lift Base · help on WhatsApp.
In this guide
Six checkpoints between the raw material and the customer Example product · 50 ml Gold bottle · 46 ml fill · 22% Cucumber Green Tea in Lift Base · 6 white fibre reeds 1 Incoming base · oil bottles · reeds 2 Batch weights · density clarity 0/24/48 h 3 Fill ±1 g on the scale cap · leak 4 Release strength vs golden bottle 5 Pack boxed drop label check 6 Stability retained bottles 7 · 30 · 90 days Complaints and stability findings feed back to incoming checks Gate 4 is the release: no batch ships until it is clear at 48 h, every fill is within ±1 g, the leak sample passes, and one bottle scores within your tolerance of the golden reference bottle, blind. Retained bottles: 3 per batch — about 2.3% of an example 100-bottle batch's CSI material cost.
The six QC checkpoints from delivery to customer, with complaints and stability findings feeding back to incoming checks. Release (checkpoint 4) is the gate: no batch ships until it has passed clarity, fill, leak and strength.
The QC instrument
Weighing Scale · ₹354.00
The method pillar
How to make a 100 ml diffuser with fragrance oil and base
Documents on file
Request IFRA and MSDS on WhatsApp
Straight answer
How do I develop a reed diffuser quality-control checklist covering clarity, fragrance strength, reed performance, leakage, stability and packaging?
Build it around six checkpoints, and write three things beside every check: how you do it, how many you check, and what makes it a fail. 1 Incoming: compare each base and oil delivery with a retained sample of the approved lot, keep the oil's IFRA certificate on file, check bottles and reeds. 2 Batch: weigh by gram, check density by weighing 100 ml, and check clarity in clear glass against white and black cards at 0, 24 and 48 hours — the CSI pages' rest period. 3 Fill: every bottle on the scale to target ± a tolerance (example ±1 g), cap, and an inverted leak sample. 4 Release: one reeded batch bottle against a reeded golden bottle, blind, in a fixed test room. 5 Pack: a boxed drop test and label check. 6 Stability: 3 retained bottles per batch, looked at on example days 7, 30, 90. Every fail line is your house standard — none exists in the industry — and CSI publishes no shelf life or throw data. Scale, beaker and a pack of retained-sample bottles cost ₹1,780.00.
One line: six checkpoints, each with a method, a sample size and a fail line — and a golden bottle to compare every batch against.
A QC system needs very little equipment: a Weighing Scale (₹354.00), a 250 ml beaker (₹600.00) for density and samples, and a spare pack of 50 ml Gold bottles (₹826.00) for retained samples — ₹1,780.00. The rest is clear sample jars, a white card, a black card and a written checklist.
See the weighing scale

Why a reed diffuser needs a written QC checklist

A diffuser can look perfect on the day it ships and fail on a customer's shelf three weeks later. QC is how you find that out before they do.

Most of a reed diffuser's failures are slow. A blend that is clear on mixing day turns hazy after a cool night. A cap that seems tight weeps when the parcel lies on its side in a warm van. A new pack of reeds wicks differently from the last. A batch made with a fresh oil lot smells slightly flatter than the one before. None of these show at the filling bench, and every one of them reaches the customer. A checklist exists to catch the slow failures with a few cheap, repeatable checks at the right moments.

This page sets out six checkpoints — incoming materials, the batch, the fill, the release, the packing and a stability programme — with what to check, how, how many, and what counts as a fail. Every acceptance line on it is a labelled house standard you set and write down: there is no industry standard for reed diffuser clarity, strength or reed performance, and CSI publishes no shelf life, evaporation or throw data for any base, oil or reed. The example product is a 50 ml Gold Reed Diffuser Bottle filled to 46 ml with 22% Cucumber Green Tea in Lift Base (whose page names green tea), with 6 white fibre reeds, made in 100-bottle batches.

The CSI principle
Every check needs three things written next to it: how you do it, how many you check, and what makes it a fail. A check without a fail line is an opinion.
The numbers on this page are examples. The discipline of writing them down before you look is the standard.
The checklist at a glance · each line expanded below
Six checkpoints, what they catch, and who owns them
Checkpoint Catches When Fail stops
1 Incoming Wrong, changed or damaged material On delivery, before use That material lot
2 Batch Weighing errors, incompatibility Mixing to end of rest That batch
3 Fill Under/over-fill, loose caps, leaks Every bottle / sample Those bottles
4 Release A batch that smells different After rest, before shipping The whole batch
5 Pack Transit leaks, breakage, wrong labels Per batch, per new box design Shipping
6 Stability Slow haze, colour or smell drift 7, 30, 90 days (examples) Future batches of that formula

Checkpoint 1: incoming materials

Everything you buy is a variable you did not make. The incoming check compares each delivery against the lot you approved — which means you need a retained sample of the approved lot and a record of when you bought it. CSI publishes no lot numbers or certificates of analysis for its bases, oils, bottles or reeds, so your order date and a retained sample are the lot record. Keep a small sealed sample of every base and oil lot, cool and dark, labelled with the order date.

Incoming · per delivery · example sample sizes — your house standard
What to check on each material
Material Check How many (example) Fail line (example)
Base (Lift) Clear, colourless or as approved; smell against retained sample; seal intact Every bottle's seal; one opened for comparison Haze, sediment, off-smell, broken seal
Oil (Cucumber Green Tea) Smell on a blotter against retained sample; clarity; label matches order Every container Noticeable difference from retained sample
Oil documents IFRA certificate on file; Category 10A limit read and recorded Per oil, per new lot if issued No certificate on file — ask CSI on WhatsApp
Bottles Cracks, chips, cap threads, cap closes fully One full pack of ten from each delivery Any crack or cap that will not seat
Reeds Count against pack size; length about 20.3 cm; straight, clean ends One pack per delivery Short count, bent or frayed reeds

Two notes from CSI's own pages are worth recording in your incoming sheet so nobody is confused later. The white reed listing's text calls them "black fiber reeds", and the bottle page says "Size: 50 and 100ml" while the variants are 50 ml and 120 ml — both page inconsistencies, not product changes. And the base pages mention rattan in places; CSI sells fibre reeds, not rattan. Choosing a supplier for documentation and repeat availability goes deeper on what to ask for, and what to ask CSI before buying has the questions written out.

Checkpoint 2: the batch

Clarity is the one property you can check in seconds, for free, at every step. Check it every time.

Every batch is mixed by weight and recorded. At 22% and 46 ml, each bottle needs 10.12 g of oil and 35.88 g of base at the example density; a 100-bottle batch is 1,012 g of oil and 3,588 g of base before any allowance. Record the actual weights, not the targets. Then take a sample into a clear glass jar and check it against a white card and a black card at mixing, at 24 hours and at 48 hours — CSI's base pages ask for a 24–48 hour rest before bottling. A passing blend is clear and single-phase: no haze, no layering, no droplets, no sediment.

Batch record · one per batch · travels with the container
The batch sheet
Field Entry Fail line (example)
Batch code, date, time ___ —
Base lot (order date) and weight added ___ g (target 3,588 g) More than 0.5% off target
Oil lot (order date) and weight added ___ g (target 1,012 g) More than 0.5% off target
Mixing method and time Pro Mixer, ___ min Not recorded
Clarity at 0 h / 24 h / 48 h (white and black card) ___ / ___ / ___ Any haze, layer, droplet or sediment
Density check (100 ml weighed) ___ g per 100 ml Differs from the approved formula's figure by more than your tolerance
Released for filling by / at ___ —

The density check is a cheap, powerful incoming-and-batch test that most makers skip. Weigh exactly 100 ml of the finished blend in the 250 ml beaker once for your approved formula and write it down. Every later batch should weigh the same within a small tolerance you set. A batch that weighs noticeably different has a weighing error or a changed material, and you will know before a single bottle is filled. Formulating by weight rather than volume explains why weight is the reference.

1
Tare and weigh the baseClean, dry container on the scale, tare, add base to the batch target, record the actual weight and the base's order date.
2
Weigh in the oilTare again, add oil to target, record the actual weight and the oil's order date. If you overshoot, add base in proportion rather than removing oil — and record what you did.
3
Mix and sampleMix until uniform with the CSI Pro Mixer for a recorded time, then decant a sample into a clear lidded jar labelled with the batch code.
4
Weigh 100 ml for densityFill the beaker to 100 ml, weigh, record, and return the liquid. Compare with the approved formula's figure.
5
Rest and checkRest the container and the sample side by side. Check the sample at 24 h and 48 h against white and black cards and sign the batch for filling only when both pass.
The common mistake: judging clarity in the mixing container. A large opaque or tinted container hides a faint haze that a clear bottle on a shop shelf will show. Fix: always decant a sample into clear glass and look at it against a white card and a black card, in daylight, at the same spot every time. If a sample hazes, step the load down by five points in a test or try the base its family is assigned to — never add water or alcohol. Cloudy after mixing covers the diagnosis.

Checkpoints 3 and 5: the fill, the cap and the pack

Fill every bottle on the scale. A target of 46 g with an example tolerance of ±1 g keeps fill lines level on a shelf — visual consistency is part of quality for a clear bottle. The Gold bottle's fill line and neck size are not published, so your target weight is your fill line. Cap by hand to a consistent feel, wipe the shoulder, and check the cap seats fully.

Fill and pack · per 100-bottle batch · example sample sizes
Fill, leak and pack checks
Check How How many (example) Fail line (example)
Fill weight Every bottle on the scale, target 46 g Every bottle Outside ±1 g — adjust before capping
Cap seated Visual and hand check Every bottle Gap, cross-threaded, cap turns past the stop
Inverted leak Capped bottle upside down on a paper towel for 1 hour 3 per batch Any mark on the towel
Warm-room leak (example condition) Inverted, in your warmest room for 4 hours 3 per new cap or bottle lot Any mark — test the cap liner with your blend
Boxed drop (example) Packed as shipped, dropped from waist height on each face onto a hard floor 2 per new box design Breakage, leak, cap movement
Label Batch code, product, net contents as filled, any safety text you use Every bottle Wrong or missing batch code

Leaks in reed diffusers are commonly a cap-and-liner problem rather than a liquid problem, and diffuser carriers can affect some liner materials over time. That is why the warm-room test is run whenever the cap, bottle or base changes, not only once. Ship the reeds separately from the liquid — bundled and sleeved in the box, not in the bottle — so a customer's first act is the one that starts the diffuser. Labels and safety text are your responsibility; CSI's data does not specify label wording.

Keep a golden bottle
From your first approved batch, keep one sealed, unreeded bottle, stored cool and dark, labelled GOLDEN with the date. It is the reference every future batch is compared against at release. Replace it only through a formal change — a new base, oil or load — and keep the old one until the new one is approved. Qualifying a new base before replacing it in a bestseller shows how a change is approved.

Checkpoint 4: fragrance strength and reed performance at release

Fragrance strength is the property customers care about most and the hardest to check, because there is no instrument for it on a small bench. The practical answer is comparison: one bottle from the batch against the golden bottle, both freshly reeded with 6 reeds from the same pack, blind, in your labelled test room after an hour — door closed, fan off, a fixed distance, evaluators from fresh air. Score both on your written house scale. A batch passes if its bottle is within your tolerance of the golden bottle — for example, half a point.

Release strength check · one batch bottle vs the golden bottle · both reeded from one pack
Release record for fragrance strength
Field Golden Batch Pass if (example)
Coded as X Y Codes set by someone else
Score at 1 hour (house scale) ___ ___ Batch within ±0.5 of golden
Character: "same" or "different"? — ___ Majority say "same"
Weight lost in 24 hours (g) ___ ___ Within your tolerance of golden
Evaluators ___ ___ At least 2, fresh-nosed

Reeds get their own check whenever a new reed pack or delivery is opened. Reed diameter is not published for CSI's fibre reeds, and packs can differ. Take one bottle from a released batch, reed it from the new pack, reed a second from the previous pack, and weigh both daily for a week. If the new reeds draw clearly faster or slower — your tolerance, written down — you have learned something before it reaches a customer. The reeds for one check cost ₹54.00 at the white 50-pack rate. Thin versus thick reeds and how many reeds in a 100 ml bottle cover the reed variable in depth.

The common mistake: smelling the batch from the container. A maker opens the mixing container, sniffs, says "smells right" and ships. Every batch smells strong from a container; the question is whether it performs the same through reeds in a room. Fix: release on a reeded bottle against the golden bottle, blind, in the test room, with a written pass line.

Checkpoint 6: a stability programme without a laboratory

CSI publishes no shelf life for any base or oil, and nobody can tell you how long your finished diffuser stays as it was made. You can find out for your own formula with retained bottles and a calendar. Keep 3 sealed, unreeded bottles from every batch: the golden or reference bottle, one stored somewhere cool, and one in your warmest room. Look at them at 7, 30, 90 days (example checkpoints) for clarity, colour and smell against the golden bottle. These are not shelf-life claims; they are your evidence.

Stability log · one row per batch per checkpoint · example conditions, your rooms
What the retained bottles tell you
Bottle Stored Day 7 Day 30 Day 90 Fail line (example)
Reference Cool, dark cupboard ___ ___ ___ Any haze or colour change
Cool Coolest room or a fridge night once a week (example) ___ ___ ___ Haze that does not clear at room temperature
Warm Warmest room in summer (record the temperature) ___ ___ ___ Colour change, haze, smell drift vs reference

At the example figures, three retained 50 ml bottles cost ₹585.42 per batch in CSI materials — about 2.3% of a 100-bottle batch. That is the price of being able to answer a customer complaint with evidence rather than a guess. One spare pack of ten bottles covers retained samples for 3 batches. If a stability bottle fails, stop making that formula until you know why; earlier batches already sold may need a word with your customers. Testing performance over 30 days is the full method for weighed, scored long-term tests.

Argued against our own interest, plainly. A QC system makes you buy a little more — a spare pack of bottles a few times a year, a few grams of retained oil and base — and it can also tell you to stop using a base or oil lot of ours that does not match the one you approved. That is the point. If a CSI lot fails your incoming check against your retained sample, message us on WhatsApp with the order date and a photograph; do not use it in production because the invoice is paid.
Clarity is free to check, weight is cheap to check, strength needs a golden bottle, and time needs a calendar. Write all four down.
— CandleMakingSuppliesIndia
Heading into Diwali (Sunday 8 November 2026) and the November–February wedding season? Higher volume is when QC slips. Print the batch sheet and release record now, keep the golden bottle, and never ship a batch that has not been clear at 48 hours. Tell us on WhatsApp what you produce and we will help you adapt the checklist — and send the IFRA certificates and MSDS you need on file.
Get my QC documents

The release rule

Working release rule · apply to every batch · stop at the first line that is true
Ship, hold or stop
If this is true It means Do this
A material failed its incoming check Changed or damaged lot Hold the lot. Contact the supplier with order date and photos
Batch sample hazy or layered at 24 or 48 h Incompatibility or weighing error Hold the batch; check weights and density; do not fill
Fills outside tolerance or a leak sample marks the towel Fill or cap problem Re-weigh or re-cap; repeat the leak sample
Release bottle outside your strength tolerance vs golden The batch is different Hold; check oil lot against its retained sample
All checks pass Releasable Ship. File the batch sheet; retain three bottles
A stability bottle fails later Formula or lot problem Stop making that formula; investigate before the next batch

The CSI products in this example

1
QC bench · weigh, sample, compare
Weighing and mixing tools
The scale's resolution and capacity are not published — check the unit's display steps before you set fill tolerances. The 250 ml beaker is for weighing 100 ml of blend for the density check.
Item Price Use
Weighing Scale ₹354.00 Resolution not published — check the display steps
Silicon Measuring Beaker 100 ml ₹300.00 Mixing a trial blend
Silicon Measuring Beaker 250 ml ₹600.00 Weighing 100 ml of blend for density
CSI Pro Mixer (cordless) ₹349.00 Uniform mixing of larger batches
₹954.00 for scale and beaker See the weighing scale
2
Example base · page names green tea
Lift Base
CSI's page calls it "perfumery-grade" for floral, citrus, green and fruity families; 10–30%; rest 24–48 hours. Composition, density and shelf life are not published. Keep a sealed retained sample of every lot you buy.
Pack Price Unit rate Bottles at 35.9 ml base Stock (14 Oct 2026)
500 ml ₹1,099.00 ₹2.20 per ml 13.9 In stock
₹1,099.00 per 500 ml Buy Lift Base
3
Example oil · 10.12 g per bottle at 22%
Cucumber Green Tea Fragrance Oil
Used here because the example needs an oil; the Lift page names green tea among its families. CSI publishes no IFRA percentage for any oil — keep its IFRA certificate on file and record its Category 10A limit.
Pack Price Per gram Bottles at 10.1 g oil
15 g ₹93.22 ₹6.21 1.5
50 g ₹176.41 ₹3.53 4.9
100 g ₹352.82 ₹3.53 9.9
500 g ₹1,663.80 ₹3.33 49.4
1 kg ₹3,327.60 ₹3.33 98.8
₹352.82 per 100 g Buy Cucumber Green Tea
4
Example bottle · 46 ml example fill · retained samples
Gold Reed Diffuser Bottle (clear glass, gold-tone screw cap)
Clear glass, gold-tone screw cap, packs of ten. Neck size, fill line and liner material are not published; whether a reducer is included is not stated — leak-test your own capping.
Variant Price Per bottle Stock (14 Oct 2026)
50 ml · pack of 10 ₹826.00 ₹82.60 In stock
120 ml · pack of 10 ₹1,062.00 ₹106.20 In stock
₹826.00 for a pack of ten retained-sample bottles Buy Gold Reed Diffuser Bottles
5
Example reeds · 6 per bottle
Fiber Diffuser Reeds (White)
20.3 cm white fibre reeds (the listing text calls them black — record that inconsistency). Page guidance: 6–8 for a 50–100 ml bottle. Diameter not published — check each new pack against the last.
Pack Price Per reed Bottles at 6 reeds
Pack of 25 ₹265.00 ₹10.60 4.2
Pack of 50 ₹450.00 ₹9.00 8.3
Pack of 100 ₹900.00 ₹9.00 16.7
Pack of 500 ₹4,500.00 ₹9.00 83.3
₹54.00 for one reed-lot check Buy white fibre reeds

For the formula behind the checklist, the pillars are how to make a 100 ml diffuser and how much fragrance oil to add; a clear, consistent, low-residue premium diffuser covers the appearance targets. On the business side, the ₹10,000 starting budget is this section's hub, 1,000 diffusers a month on a bench sets the production rhythm the checklist fits into, and the complete guide to starting a reed diffuser business ties every pillar together.

A different format? The six checkpoints apply to any reed or car diffuser; change the fill target, tolerance, reed count and sample sizes. Bases are in Reed & Car Diffuser Base, oils in Fragrance Oils.
Why trust this guide

CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not finished diffusers. A QC checklist can tell you to reject a lot of our base or oil, and this page tells you to do exactly that if it fails your incoming check — and to message us with the order date. We publish no lot numbers, certificates of analysis, shelf life, evaporation or throw data for any base, oil or reed, so the retained sample and your records are the reference.

Diffuser base, reed, bottle and tool prices are CSI live pricing, pulled 14 October 2026. Fragrance-oil prices are CSI live pricing, pulled 24 September 2026, stock re-checked 14 October 2026. Every gram split, per-bottle cost, pack total and margin on this page is computed and shown to two decimals so you can check it; ml ↔ g conversions use a labelled example density because none is published.

Bottle counts per arm, rest and hold checkpoints, scoring scales, fill volumes, reed counts and every non-CSI cost are labelled working practices or examples, not industry standards. The 46 ml fill, 22% load, 1.00 g/ml density, 6 reeds, 100-bottle batch, ±1 g tolerance, sample sizes, leak and drop conditions, stability checkpoints and every fail line are labelled examples. For help building a test kit, larger-quantity quotes, GST invoicing, MSDS or IFRA documents, message us on WhatsApp at +91 7397976926.

Frequently asked questions

How do I test a reed diffuser for leaks?
Stand a filled, capped bottle upside down on a paper towel for an hour, and repeat in your warmest room for a few hours whenever the cap, bottle or base changes. Any mark is a fail; check the cap and its liner.
What is the shelf life of reed diffuser oil?
CSI publishes no shelf life for its bases or oils. Keep sealed retained bottles from each batch, store them cool and warm, and look at them at fixed checkpoints such as 7, 30 and 90 days.
Why does my reed diffuser go cloudy after a few days?
Commonly a compatibility limit at that load or temperature. Check clarity at 24 and 48 hours and after a cool night before filling; step the load down in a test or try the base the oil's family is assigned to.
How do I make sure every batch smells the same?
Weigh every ingredient, check density, and release each batch only after a blind comparison of a reeded batch bottle against a reeded golden bottle from your first approved batch.
What documents do I need for selling reed diffusers?
At minimum keep the oil's IFRA certificate (and its Category 10A limit) and MSDS on file — CSI provides these on WhatsApp request. Ask whether an SDS is available for the base. Label requirements are your responsibility.
How many reed diffusers should I test from each batch?
As an example house standard: weigh every fill, leak-test 3, release-test 1 against the golden bottle, and retain 3 for stability. Set your own numbers and write them down.
Write it down, then ship
Six checkpoints. A golden bottle. Three retained bottles per batch.
Weighing Scale ₹354.00, Silicon Measuring Beaker 250 ml ₹600.00, Gold Reed Diffuser Bottles 50 ml ₹826.00 for ten. Tell us what you make and we will send IFRA certificates and MSDS for your oils and help you adapt the checklist.
Shop reed diffuser bases Request documents on WhatsApp
Continue the read — starting a reed diffuser business and buying wholesale
Editorial standards & sources
About this guide: Written by the CANDLEMAKINGSUPPLIESINDIA team. The six checkpoints, record sheets and release rule apply to any reed diffuser from any supplier's materials; the products named are CSI's.

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 — Eco Candle Wicks, Premium Candle Wicking Needle and Bamboo Wick Holder. They are general product reviews, not assessments of the guidance set out here. Names, star ratings, dates and products are as recorded by Judge.me and wording is unedited. "Verified buyer" appears only on the three reviews Judge.me recorded as verified — Monika Deep, Subhankar Roy and Sneha Tamang; the reviews from Ashwini, LJ and Lalitha Jagan are published but not recorded as verified, and carry no badge.

Figures used on this page: Diffuser bases, reeds, bottles and tools — CSI live pricing, pulled 14 October 2026: Pure Performance Base ₹325.00 / 100 g, ₹1,099.00 / 500 ml; Longevity Base ₹1,296.00 / 500 ml; Lift Base ₹1,099.00 / 500 ml; Depth Base ₹1,099.00 / 500 ml; Softness Base ₹1,099.00 / 500 ml; CSI HyperDiffusion Base™ ₹1,499.00 (out of stock); Fiber Diffuser Reeds (Black) ₹236.00 / 25, ₹400.00 / 50, ₹800.00 / 100, ₹4,000.00 / 500; Fiber Diffuser Reeds (White) ₹265.00 / 25, ₹450.00 / 50, ₹900.00 / 100, ₹4,500.00 / 500 (both 20.3 cm long); Gold Reed Diffuser Bottle 50 ml ₹826.00 / pack of 10, 120 ml ₹1,062.00 / pack of 10; Weighing Scale ₹354.00; Silicon Measuring Beaker 100 ml ₹300.00, 250 ml ₹600.00; CSI Pro Mixer ₹349.00. Fragrance oils — CSI live pricing, pulled 24 September 2026, stock re-checked 14 October 2026: Cucumber Green Tea Fragrance Oil ₹93.22 / 15 g, ₹176.41 / 50 g, ₹352.82 / 100 g, ₹1,663.80 / 500 g, ₹3,327.60 / 1 kg.

Non-price figures and assumptions: Load convention: fragrance load is a share of the TOTAL blend by weight (oil g = blend g × L; base g = blend g × (1 − L)). No density is published for any CSI base or oil, so every ml ↔ g conversion uses a labelled example density with its ±5% sensitivity; weigh 100 ml of your own blend to get yours. Labelled examples: 46 ml fill in the 50 ml Gold bottle, 22% load, density 1.00 g/ml, 6 white fibre reeds at the 50+ rate, 100-bottle batches, ±1 g fill tolerance, 3 leak samples, 3 retained bottles per batch, 1-hour inverted and 4-hour warm-room leak tests, waist-height boxed drop, stability checkpoints at 7, 30, 90 days, ±0.5-point strength tolerance. No industry QC standard for reed diffusers is implied. What CSI's product pages state (quoted as claims to test, not CSI test results): Pure Performance — neutral, "no added fixatives, no complex enhancements", for all fragrance families, start at 10%, up to a maximum of 30%, 20% recommended, typical working blend 75% base + 25% fragrance, rest 24–48 hours before bottling, flip reeds after the first hour; Longevity — oriental/amber, woody, resinous, spicy and gourmand families, avoid light florals, fresh citrus and aquatics, slower "cold diffusion", reduce the percentage if clouding occurs; Lift — floral, citrus, green and fruity families; Depth — chypre, leather, smoky and rich gourmand; Softness — soft florals, powdery/musky and light gourmand; all four 10–30% with a 24–48 hour rest. Reed pages: 20.3 cm long; "for a standard 50–100 ml diffuser bottle, 6–8 reeds gives a good balance" (the page's guidance, not a test result). CSI does not publish the composition, viscosity, density, evaporation rate, flash point or shelf life of any diffuser base; no throw, longevity or evaporation data for any base, oil or reed; no reed diameter; no bottle neck size or fill line; no IFRA percentage for any oil; no lead times and no bulk base price. No CSI base is ranked above another on this page: the pages differ in what they say each base is FOR, and those statements are claims to test. CSI sells fibre reeds, not rattan, and does not sell DPG, Augeo, perfumer's alcohol or IPM. Material costs exclude labour, packaging, freight and GST. Diwali 2026 falls on Sunday 8 November.
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