How Do I Compare Two Reed Diffuser Bases Using Evaporation Rate, Fragrance Throw, Clarity, Reed Compatibility and Cost per Bottle?
Share
Is clarity part of the score? No — it is a gate. A base that hazes with your oil is out, whatever its throw. Score only the bases that pass.
How do I compare cost? Per day, not per bottle: liquid ₹ ÷ days of life (fill ÷ g/day). Two bases at one ₹/ml can differ per gram if their densities differ — weigh 100 ml of each.
What does the comparison cost? ₹4,674.80 in CSI materials for Softness vs Lift with British Rose in ten 120 ml bottles. See the kit.
One scorecard, five criteria, decided before day 0
Every criterion in your question can be measured with a scale, a camera, a room and a calculator — but they do not all count the same, and some are not scores at all. Clarity is a gate, not a score: a base that clouds with your oil is out, however well it diffuses, so it never enters the weighted total. Throw is a blind room score. Evaporation is grams lost per day, which turns into days of life against the life you want to sell. Reed compatibility is what happens at the reeds: how fast they wet, how the tips look and feel by day 14, whether flipping revives the room. Cost per bottle is arithmetic — but the version that matters is cost per day of fragrance, which needs the evaporation figure too.
So the straight answer is: run both bases with the same oil, load, bottle, reeds and room; gate them on clarity at 0 h, 48 h, 7 days and after a cool night; then score throw, life, reed condition and cost per day on 0–5 scales, multiply by weights you wrote down before the test, and add them up. A difference smaller than the spread between bottles of the same base is a tie. This page builds that scorecard step by step, prices a two-base comparison in one pack of 120 ml bottles, and shows the scorecard arithmetic with illustrative figures for a Base X and a Base Y — deliberately not CSI bases, because CSI publishes no throw, evaporation or longevity data for any base and we will not invent any.
| Criterion | Measurement | When | Becomes a score by |
|---|---|---|---|
| Clarity (gate) | Blend and base-only blank against white and black cards | 0 h, 24 h, 48 h, 7 days, after a cool night | Pass or fail — not weighted |
| Throw | Blind 0–5 room score at 1 m and 3 m, 30 minutes after entering | Days 1, 7, 14 | Average of all readings, already 0–5 |
| Evaporation / life | Bottle + reeds weighed at the same hour | Days 0, 1, 3, 7, 14 | Days of life (fill ÷ g/day) ÷ your target days × 5, capped at 5 |
| Reed compatibility | Time for tips to look wet; tip photos; stickiness; room score after a flip | First 6 h; days 3, 7, 14 | Your 0–5 reed grade (example below) |
| Cost per day | Liquid ₹ per bottle ÷ days of life | From the weights | Cheapest ÷ this base's × 5 |
Set up a fair comparison
Fairness is about holding everything except the base still. Same oil, from one bottle. Same load by weight — here 25%, the "typical working blend" Pure Performance's page gives (75% base + 25% fragrance), within the 10–30% both candidate pages state; check the oil's IFRA limit for the category covering reed diffusers before selling at it. Same bottle and fill: an example 100 g in CSI's 120 ml bottle, so 25 g of oil and 75 g of base per bottle. Same reed type, count and batch: 7 black fibre reeds from one pack. Same room, same shelf, same flip schedule, same evaluators.
| Bottles | Base | Contents | Purpose |
|---|---|---|---|
| A1–A4 | Softness Base | 25 g oil + 75 g base, 7 reeds | Arm A |
| AX | Softness Base | 100 g base only, 7 reeds | Base blank: clarity, odour, base-only weight loss |
| B1–B4 | Lift Base | 25 g oil + 75 g base, 7 reeds | Arm B |
| BX | Lift Base | 100 g base only, 7 reeds | Base blank |
Four bottles per arm, rather than three, matters here because you are going to compare averages and you need to know how far bottles of the same base differ from each other. That spread is your noise. If A's four bottles lose between 1.5 and 2.1 g a day and B's lose between 1.7 and 2.3, the bases are not different on evaporation in any way you can claim. The base-only blanks do two jobs: they let you smell each base on its own, and their weight loss shows how much of each arm's loss is the carrier rather than the fragrance — the question liquid disappears quickly but the room still smells weak is built around.
| Grade | Tips at day 14 | Feel | Flip response |
|---|---|---|---|
| 5 | Like day 3 | Dry to the touch above the liquid | Little change — release was steady |
| 4 | Slightly darker | Dry | Small rise |
| 3 | Visibly darker at the tip | Faintly tacky | Noticeable rise |
| 2 | Dark band spreading down | Tacky | Large rise — tips were blocking |
| 1 | Dark and glossy | Sticky | Large rise, then falls again within days |
| 0 | Crusted or blocked | Sticky | No response |
Cost per bottle — and why two bases at one price can differ
Softness and Lift are both ₹1,099.00 for 500 ml, so it is natural to assume they cost the same per bottle. Per millilitre they do: ₹2.20. But a recipe written by weight uses grams, and the grams in 500 ml depend on the base's density, which CSI does not publish. Weigh 100 ml of each. To show the effect with illustrative figures — not measurements of any CSI base — suppose Base X weighs 97 g per 100 ml and Base Y 103 g. Then X costs ₹2.27 a gram and Y ₹2.13; in this bottle the base share is ₹169.95 against ₹160.05, and one 500 ml fills 6.47 bottles of X against 6.87 of Y.
| Base X (illustrative 0.97 g/ml) | Base Y (illustrative 1.03 g/ml) | |
|---|---|---|
| Base ₹ per g | ₹2.27 | ₹2.13 |
| Base in bottle | ₹169.95 | ₹160.05 |
| Oil in bottle | ₹76.70 | ₹76.70 |
| Liquid per bottle | ₹246.65 | ₹236.75 |
| + 120 ml bottle and 7 black reeds | ₹408.85 | ₹398.95 |
| Bottles per 500 ml of base | 6.47 | 6.87 |
Then the step that changes the answer: divide by days of life. Suppose — again illustrative, to show the arithmetic — Base X's bottles average 1.6 g a day and Base Y's 2.4 g. X lasts 62.5 days and costs ₹3.95 a day in liquid; Y lasts 41.7 days at ₹5.68 a day. The cheaper-per-bottle base is not automatically the cheaper product, and the faster-evaporating base is not automatically the stronger one: that is why throw is scored separately. Comparing base prices per kg with density, load and yield goes further into price per kilogram; is a more expensive base worth it at a lower load? runs the version of this sum where the two bases are priced differently.
| Load | Oil | Base | Liquid per bottle |
|---|---|---|---|
| 20% | 20 g | 80 g | ₹237.20 |
| 25% | 25 g | 75 g | ₹241.55 |
| 30% | 30 g | 70 g | ₹245.90 |
Putting it together: the weighted scorecard
With every reading in, convert each criterion to 0–5 as the criteria table says, multiply by its weight and add. The worked example below uses the illustrative Base X and Base Y figures from the cost section plus illustrative room scores (3.4 and 3.9) and reed grades (4 and 3), with a 45-day target life. It is there to show the arithmetic; it is not a result for Softness, Lift or any CSI base.
| Criterion | Weight | Base X reading | X score | Base Y reading | Y score |
|---|---|---|---|---|---|
| Clarity (gate) | — | Pass | — | Pass | — |
| Throw | 35% | 3.4 avg | 3.40 | 3.9 avg | 3.90 |
| Life | 25% | 62.5 days | 5.00 | 41.7 days | 4.63 |
| Reeds | 15% | grade 4 | 4.00 | grade 3 | 3.00 |
| Cost per day | 25% | ₹3.95 | 5.00 | ₹5.68 | 3.47 |
| Weighted total | 100% | 4.29 | 3.84 |
In that illustration the totals are 4.29 and 3.84: X wins on life, reeds and cost per day; Y wins on throw. Whether 0.45 is a real difference depends on your spread — score each bottle separately and see whether the ranges overlap. Change the weights and the winner can change, which is exactly why you write them down first: a maker selling small-room bedside diffusers might weight life and cost most; a maker selling hotel-lobby pieces might weight throw at 50%. The most economical fragrance percentage applies the same logic to load rather than base.
The priced comparison kit
Listed, in-stock CSI packs only, with a 5% liquid allowance. Each base needs 420.0 g for four bottles and a blank — one 500 ml at any density above 0.840 g per ml. British Rose for eight bottles at 25% is 210.0 g, bought as the cheapest mix of its 15 g, 50 g and 100 g sizes.
| Item | Need | Buy | Price | Skip if |
|---|---|---|---|---|
| Softness Base | 420.0 g | 1 × 500 ml | ₹1,099.00 | Your current base is arm A |
| Lift Base | 420.0 g | 1 × 500 ml | ₹1,099.00 | Your current base is arm B |
| British Rose (example oil) | 210.0 g | 2 × 100 g + 1 × 15 g | ₹778.80 | You use your own oil (better) |
| Gold Reed Diffuser Bottle, 120 ml | 10 bottles | 1 × pack of 10 | ₹1,062.00 | You test in your own bottle |
| Fiber Diffuser Reeds (Black) | 8 × 7 = 56 | 1 × pack of 50 + 1 × pack of 25 | ₹636.00 | Blanks take reeds from the spares |
| CSI comparison kit | ₹4,674.80 | |||
| Weighing Scale | 1 | 1 | ₹354.00 | You own a scale |
| With scale | ₹5,028.80 |
The 56 reeds for the scored bottles come as a 50-pack plus a 25-pack (₹636.00), leaving 19 — enough for both blanks and the day-14 photographs. If you are comparing a CSI base with the base you already sell, replace one base line with yours. If the comparison is Pure Performance Base against another base, its 100 g packs cut the cost of that arm: four bottles and a blank need 1 × 500 ml (₹1,099.00).
The decision rule
| If this is true | It means | Do this |
|---|---|---|
| One base fails the clarity gate | It is out | Buy the other — if it passed |
| Both fail the gate | Neither pairs with this oil at this load | Don't buy yet — step down 5 points or try another base |
| One base leads by more than your tie margin and bottle ranges do not overlap | A real winner on your weights | Buy the winner in 500 ml (₹1,099.00) |
| Totals within your tie margin | A tie | Buy the one your other oils also pass in; or the one you already stock |
| The winner loses on throw but wins on cost per day | A cheaper, quieter product | Check the throw still meets your house pass; if not, it has not really won |
| Your current base ties with both | No reason to switch | Buy nothing new; file the scorecard |
Keep the scorecard. It is the reference for every later change: a new lot of base, a new oil, a new load or a new supplier is scored against it. Testing a new base supplier before replacing your bestseller uses exactly this sheet with your current base as arm A; the 30-day performance test extends the life measurement; and clarity tests before buying 5 kg adds the deeper compatibility checks before a bulk order. The pillar for the base decision is which reed diffuser base to buy in India, and the section closes with the commercial base selection framework.
The CSI products in this comparison
| Pack | Price | Per unit | Bottles at 75.0 g base |
|---|---|---|---|
| 500 ml | ₹1,099.00 | ₹2.20 per ml | 6.7 (at example 1.00 g/ml) |
| Pack | Price | Per unit | Bottles at 75.0 g base |
|---|---|---|---|
| 500 ml | ₹1,099.00 | ₹2.20 per ml | 6.7 (at example 1.00 g/ml) |
| Pack | Price | Per gram | Bottles at 25.0 g oil |
|---|---|---|---|
| 15 g | ₹94.40 | ₹6.29 | 0.6 |
| 50 g | ₹212.40 | ₹4.25 | 2.0 |
| 100 g | ₹342.20 | ₹3.42 | 4.0 |
| 500 g | ₹1,593.00 | ₹3.19 | 20.0 |
| 1 kg | ₹3,068.00 | ₹3.07 | 40.0 |
| Pack | Price | Per reed | Bottles at 7 reeds |
|---|---|---|---|
| Pack of 25 | ₹236.00 | ₹9.44 | 3 |
| Pack of 50 | ₹400.00 | ₹8.00 | 7 |
| Pack of 100 | ₹800.00 | ₹8.00 | 14 |
| Pack of 500 | ₹4,000.00 | ₹8.00 | 71 |
| Variant | Price | Per bottle | Stock |
|---|---|---|---|
| 50 ml · pack of 10 | ₹826.00 | ₹82.60 | In stock (14 Oct 2026) |
| 120 ml · pack of 10 | ₹1,062.00 | ₹106.20 | In stock (14 Oct 2026) |
CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not finished diffusers. A base seller could publish a comparison chart. This page publishes none, because CSI has no throw, evaporation or longevity measurements for any base; it builds your scorecard instead, uses deliberately non-CSI Base X/Base Y figures to show the arithmetic, and tells you that a tie means you need only one base.
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 blend split, base-pack count, per-bottle liquid cost, kit total and cost per day on this page is computed and shown to two decimals so you can check it; density and grams-per-day figures are labelled examples, never CSI specifications.
Bottle counts per arm, the clarity checkpoints, the weighing schedule, the room-scoring scale and the decision thresholds are labelled working practices, not industry standards — none exists for reed diffusers. The 100 g fill, the 25% load, the weights, the 45-day target, the reed grade, the 0.97/1.03 g/ml densities and every Base X/Base Y reading are illustrative examples, not CSI data. For help building a base test kit, bulk quotes, GST invoicing, MSDS or IFRA documents, message us on WhatsApp at +91 7397976926.
Frequently asked questions
- Which Reed Diffuser Base Should I Buy in India if I Want Strong Fragrance Diffusion and a Reasonable Product Life?
- I Want a Reed Diffuser Base That Remains Clear with My Fragrance Oil — What Compatibility Tests Should I Perform Before Purchasing 5 kg?
- What Should I Check on the SDS and Technical Data Sheet Before Buying a Reed Diffuser Base for Commercial Manufacturing?
- Is a More Expensive Reed Diffuser Base Worth Buying if It Gives Better Fragrance Diffusion at a Lower Fragrance Percentage?
- Should I Purchase 500 g Samples of Different Reed Diffuser Bases Before Committing to a 25 kg Wholesale Order?
- How Do I Select a Commercial Reed Diffuser Base in India That Balances Fragrance Compatibility, Capillary Flow, Evaporation, Safety and Finished Product Cost?
- How Do I Compare 18%, 20% and 22% Fragrance Loads Using Room Throw, Liquid Consumption and Cost per Day of Use?
- How Do I Test Reed Diffuser Performance Over 30 Days Using Liquid Weight Loss, Fragrance Intensity, Reed Condition and Room Temperature?
- How Do I Compare Ready-Made Reed Diffuser Base Prices per kg While Accounting for Density, Fragrance Load and Finished Bottle Yield?
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 products — 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; Gold Reed Diffuser Bottle 50 ml ₹826.00 / pack of 10, 120 ml ₹1,062.00 / pack of 10; Silicon Measuring Beaker 100 ml ₹300.00, 250 ml ₹600.00; Weighing Scale ₹354.00; CSI Pro Mixer ₹349.00. Fragrance oils — CSI live pricing, pulled 24 September 2026, stock re-checked 14 October 2026: British Rose Fragrance Oil ₹94.40 / 15 g, ₹212.40 / 50 g, ₹342.20 / 100 g, ₹1,593.00 / 500 g, ₹3,068.00 / 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)). Example fill 100 g per 120 ml bottle at 25% = 25 g oil + 75 g base; one 500 ml of each base covers its arm at 0.840 g per ml or more. Illustrative densities 0.97 and 1.03 g per ml; illustrative readings 1.6 and 2.4 g/day, room scores 3.4 and 3.9, reed grades 4 and 3; example weights throw 35%, life 25%, reeds 15%, cost per day 25%; example target life 45 days. Working practices: 4 reeded bottles + 1 blank per base, 7 reeds, 5% liquid allowance, weights on days 0, 1, 3, 7 and 14, blind 0–5 scoring at 1 m and 3 m on days 1, 7 and 14, reed photographs on days 3, 7 and 14. Production-rate liquid costs use the 500 ml base rate and British Rose's 1 kg rate. What CSI's base pages state (quoted as claims to test, not CSI test results): Pure Performance — neutral, "no added fixatives, no complex enhancements", for all families, start at 10%, maximum 30%, 20% recommended, typical working blend 75% base + 25% fragrance, rest 24–48 hours, flip reeds after the first hour; Longevity — oriental/amber, woody, resinous/balsamic, spicy and gourmand families, slower "cold diffusion", 10–30%, "if clouding occurs, reduce fragrance percentage and retest", allow 2–3 hours before the first flip; Lift — floral, citrus, green and fruity families, 10–30%; Depth — chypre, leather, smoky and rich gourmand, "slow diffusion", 10–30%; Softness — soft florals, powdery/musky and light gourmand, 10–30%; all five say rest 24–48 hours and describe themselves as crystal clear. Fibre reed page: length 20.3 cm; 6–8 reeds for a standard 50–100 ml bottle, more for stronger and faster diffusion, fewer for subtler and longer-lasting. CSI publishes no composition, density, viscosity, evaporation rate, flash point, shelf life or SDS figure for any diffuser base; no throw, evaporation or longevity data for any base, oil or reed; no reed diameter; no bottle neck size or fill line; and no IFRA limit for any oil. Any density on this page is a labelled example the reader replaces with a weighed figure; any g/day is a labelled example the reader replaces with a measured one. Material costs exclude labour, labels, boxes, freight and GST. Diwali 2026 falls on Sunday 8 November.