How Do I Account for Fragrance Oil Density When Calculating the Number of 100 ml Bottles I Can Fill from 1 kg of Finished Diffuser Liquid?

How Do I Account for Fragrance Oil Density When Calculating the Number of 100 ml Bottles I Can Fill from 1 kg of Finished Diffuser Liquid?

 

Pure Performance ₹325.00 / 100 g · ₹1,099.00 / 500 ml Gold 120 ml ₹1,062.00 / 10 Weighing Scale ₹354.00
CSI reed diffuser guide · Fragrance oil percentages and formula calculations
Count bottles from weight, not hope: measure your blend's density and know exactly how many 100 ml diffusers a kilo fills.
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Bamboo Wick Holder
★★★★☆
"Quality of the wick is good for jar candles, team can work on the pricing and delivery timelines."
Monika DeepVerified buyer · Oct 2025
Eco Candle Wicks
★★★★★
"Quality wick, works very well"
AshwiniSep 2025
Eco Candle Wicks
★★★★☆
"Good quality .... if possible delivery date would be try little bit quick please"
Subhankar RoyVerified buyer · Sep 2024
Eco Candle Wicks
★★★★★
"This needle is very helpful as it doesn't damage the mould and there is no leakage of wax while pouring.. I would definitely recommend this .."
LJAug 2024
Premium Candle Wicking Needle
★★★★★
"Good one"
Sneha TamangVerified buyer · Apr 2025
Premium Candle Wicking Needle
★★★★★
"This bamboo wick holder doesn't exert any pressure on the wicks… and it is a very useful product 👌🏻👌🏻.."
Lalitha JaganAug 2024
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Shop reed diffuser bases Check my bottle count
✓ Diffuser prices pulled 14 October 2026 ✓ Oil stock re-checked 14 October 2026 ✓ GST invoicing · MSDS & IFRA documents on request
Reed Diffusers × Formula Calculations · Density and bottle yield
"1 kg = 1 litre = 10 bottles" holds only for a blend at 1.00 g/ml with nothing lost. With a 2% transfer loss the cut-off is 0.98 g/ml; above it, nine. This page gives the formula, shows how the oil's density moves the blend's, and measures yours.
≤ 0.98 g/ml
blend density at which 1 kg still fills ten full 100 ml bottles after a 2% transfer loss · above it, nine (eight above 1.09 g/ml) · all densities are labelled examples — none is published for any CSI base or oil
Quick answers — read this first
How many 100 ml bottles from 1 kg? Ten if the blend weighs ≤ 1.00 g/ml with no loss, or ≤ 0.98 g/ml with a 2% loss. Otherwise nine.

What is the formula? Bottles = batch g × (1 − loss) ÷ (fill ml × blend density), rounded down.

Does the oil's density matter? Yes, through the blend: at 20% oil, a 10% swing in oil density moves the blend about 2%. Measure the finished blend.

How do I measure density? Weigh 100 ml of rested blend in a beaker, or calibrate one bottle with water and fill it to the same mark. See the methods.
The short answer
Answer: Divide 1,000 g by your blend's density to get millilitres, take off your transfer loss, divide by 100 and round down. At an example 1.00 g/ml with a 2% loss that is nine full bottles; ten needs a blend at or below 0.98 g/ml.
Why: Bottles are filled by volume and batches are made by weight; no density is published for any CSI base or oil. The oil's density shifts the blend's in proportion to its share — about a fifth at 20% load.
Method: Measure the rested blend's density (beaker, or water-calibrated bottle), set a target fill weight, fill by weight, and measure your real transfer loss by weighing the vessel's leftover.
Shop: Pure Performance Base · Orchard Pear · Gold Reed Diffuser Bottle 120 ml · Weighing Scale · help on WhatsApp.
In this guide
1 kg of finished liquid: how many 100 ml bottles? Example densities only — none is published for any CSI base or oil · whole bottles · 2% transfer allowance shown dashed 8 9 10 11 0.90 0.95 1.00 1.05 1.10 blend density, g per ml (example values) bottles 0.98: ten bottles only below this with 2% loss solid: no loss dashed: 2% transfer loss “1 kg = 1 litre = 10 bottles” is true only at 1.00 g/ml with no loss. Any loss, or a blend heavier than 0.98 g/ml, and the tenth bottle is short. Weigh 100 ml of your blend before you promise ten.
Full 100 ml bottles from 1 kg of finished liquid as the blend's density changes (example values). The solid line assumes nothing is lost; the dashed line takes off a 2% transfer allowance. The count jumps from ten to nine at 1.00 g/ml without loss and at 0.98 g/ml with it.
Measure it
Weighing Scale · ₹354.00
The other direction
From 100 bottles of 120 ml to grams of oil and base
Your numbers
Check your bottle count on WhatsApp
Straight answer
How do I account for fragrance oil density when calculating the number of 100 ml bottles I can fill from 1 kg of finished diffuser liquid?
Convert the kilogram to millilitres with the density of the finished blend, take off your transfer loss, and divide by 100 — rounding down. Bottles = 1,000 g × (1 − loss) ÷ (100 ml × blend density). The fragrance oil's density enters through the blend: at 20% oil by weight the blend is mostly base, so a 10% change in the oil's density moves the blend's by roughly 2% (an ideal-mixing approximation). CSI publishes no density for any base or oil, so measure the rested blend — 100 ml in a beaker on a scale, or one bottle calibrated with water and refilled with blend to the same mark. The answer jumps: ten full bottles need a blend at or below 1.00 g/ml with no loss, or 0.98 g/ml with a 2% transfer loss; at an example 1.00 g/ml with that loss you fill nine. Then fill every bottle to a target weight — 100 ml × your density — not to a line by eye. A 1 kg batch in Pure Performance Base with Orchard Pear, bottles and reeds costs ₹4,820.00.
One line: bottles = batch g × (1 − loss) ÷ (fill ml × measured blend density), rounded down — weigh 100 ml before you promise ten.
1 kg of finished liquid fills ten 100 ml bottles only if your blend weighs 1.00 g per ml or less and nothing is lost; with a 2% transfer loss the line falls to 0.98 g/ml, and at an example 1.00 g/ml you fill nine. Measure your density with a scale and a beaker (₹954.00 if you need both). A 1 kg batch of Pure Performance Base and Orchard Pear with bottles and reeds costs ₹4,820.00.
See Pure Performance Base

The formula, and why ten is not automatic

A kilogram is a weight. A hundred millilitres is a volume. The number of bottles depends on the one figure that joins them.

The calculation is short: bottles = (batch grams ÷ blend density) × (1 − transfer loss) ÷ fill millilitres, rounded down to whole bottles. For 1,000 g of finished liquid and a 100 ml fill, everything hangs on the density. If your blend weighs exactly 1.00 g per ml, 1 kg is 1,000 ml, and ten bottles take every drop — none left for what clings to the vessel, the funnel and the stirrer. If it weighs 0.95 g/ml, you have 1,052.6 ml, ten bottles with room to spare. If it weighs 1.05 g/ml, you have 952.4 ml and nine. CSI publishes no density for any of its bases or oils, so every density on this page is a labelled example; the only way to know yours is to weigh it.

1,000 g of finished blend · 100 ml fills · 2% transfer allowance (labelled working assumption) · densities are labelled examples
Bottles from 1 kg at different blend densities
Blend density (example) 1 kg as volume Usable after 2% loss Full 100 ml bottles Left over Grams per bottle
0.90 g/ml 1,111.1 ml 1,088.9 ml 10 88.9 ml 90.0 g
0.95 g/ml 1,052.6 ml 1,031.6 ml 10 31.6 ml 95.0 g
0.98 g/ml 1,020.4 ml 1,000.0 ml 10 0.0 ml 98.0 g
1.00 g/ml 1,000.0 ml 980.0 ml 9 80.0 ml 100.0 g
1.02 g/ml 980.4 ml 960.8 ml 9 60.8 ml 102.0 g
1.05 g/ml 952.4 ml 933.3 ml 9 33.3 ml 105.0 g
1.10 g/ml 909.1 ml 890.9 ml 8 90.9 ml 110.0 g

The bottle count does not drift smoothly; it jumps. Between 0.90 and 0.98 g/ml you get ten, and above 0.98 g/ml, nine — with up to nearly a full bottle's worth left over that you cannot sell as a 100 ml product. That jump is why a maker who promised a customer "ten from a kilo" without weighing can end up a bottle short. It is also why the last column matters more than the bottle count: at your measured density, each 100 ml bottle should be filled to a target weight — 100 g at 1.00 g/ml, 105 g at 1.05 g/ml — and you count bottles by dividing the batch weight by that target, not by eyeballing a line.

The CSI principle
Count bottles from weight: batch grams × (1 − loss) ÷ (fill ml × your measured density). Round down, always.
A part-bottle is not a product. Plan the batch so the last bottle is full, or plan what the leftover becomes — a retained sample, a tester, the next batch.

The section pillar, how much fragrance oil to add to 100 ml of base, uses the same weight convention; the 100-bottle × 120 ml calculation runs this formula backwards — from a bottle count to the grams you need to make — and formulating by weight rather than volume explains why the batch is weighed in the first place.

Where the fragrance oil's density comes in

Your question names the fragrance oil's density, and it matters in two places. First, it changes the density of the finished blend. At 20% oil by weight, a blend is mostly base, so the oil moves the blend's density by roughly a fifth of the difference between the two liquids. As a labelled approximation that assumes the volumes simply add (real mixtures can differ slightly), blend density = 1 ÷ (oil share ÷ oil density + base share ÷ base density). Second, if anyone in your workshop measures the oil by volume, its density decides how many grams went in.

20% oil by weight · ideal-mixing approximation (labelled) · all densities are examples — weigh your own blend
How oil and base densities set the blend's
Oil density (example) Base density (example) Blend density (approx.) 1 kg as volume Full 100 ml bottles after 2% loss
0.90 g/ml 1.00 g/ml 0.978 g/ml 1,022.2 ml 10
0.95 g/ml 1.00 g/ml 0.990 g/ml 1,010.5 ml 9
1.00 g/ml 1.00 g/ml 1.000 g/ml 1,000.0 ml 9
1.05 g/ml 1.00 g/ml 1.010 g/ml 990.5 ml 9
0.95 g/ml 1.05 g/ml 1.028 g/ml 972.4 ml 9

Two lessons come out of that table. The base dominates: at 20% load, a 10% swing in oil density moves the blend by about 2%. And no approximation replaces a measurement: real liquids do not always mix to exactly the sum of their volumes, and you do not know either density to begin with. So measure the finished blend, not the ingredients. It is one reading, it already includes whatever the mixing did, and it is the number the bottle count needs.

The common mistake: measuring the oil's density and assuming the base is water. A maker weighs 100 ml of fragrance oil, gets a figure, assumes the base is 1.00 g/ml because "it looks like water", and calculates the blend. Nothing about a clear liquid tells you its density, and CSI publishes none for its bases. Fix: weigh 100 ml of the finished, rested blend. If you also want the ingredients' densities for planning, weigh each — but plan the bottle count from the blend.

Measuring your blend's density properly

There are two practical ways to do it in a small workshop. The beaker method is quick; the bottle method is more accurate because it removes the guesswork of reading a graduation.

1
Beaker method — quickPut a clean, dry 250 ml beaker on a tared scale, pour the rested blend to the 100 ml line at eye level, and read the grams. Divide by 100. Repeat three times and average. Accuracy depends on how well the graduation is marked and read.
2
Bottle method — calibrate with waterTake one Gold 120 ml bottle, mark a fill line on masking tape, and weigh it empty. Fill it with water exactly to the mark and weigh it again: water weighs very close to 1 g per ml at room temperature, so the grams of water are, near enough, the millilitres to your mark.
3
Then fill the same bottle with blendEmpty and dry the bottle, fill it with your blend to the same mark, and weigh. Blend grams ÷ water grams = your blend's density in g/ml, to the accuracy of your scale and your eye on one mark.
4
Record it with the batchWrite the density on the batch sheet next to the oil and base lots. A different oil, a different load or a new lot of base can change it — measure each new formula.
The bottle method also sets your fill weight
Once you know how many grams of blend reach your chosen mark, that is the target fill weight for every bottle of that formula. For a 100 ml fill in the 120 ml Gold bottle, mark the level you want after the reeds go in — CSI does not publish a fill line — and use that bottle as your reference. Reed count in a 100 ml bottle covers how reeds change the level you can safely fill.

Test it: weight-filled bottles against a calibrated control

The count is only as good as the fill. Ten bottles filled by eye are rarely ten equal bottles.

This test compares two ways of filling the same 1 kg batch, so the one variable is the filling method. Mix 1 kg of Pure Performance Base and Orchard Pear at 20% by weight — 200 g of oil and 800 g of base — rest it 24–48 hours as the base pages ask, and measure its density by the bottle method. One Gold 120 ml bottle calibrated with water is the control: the reference volume. Fill five bottles by eye to a line matched to the control, and five by weight to the target grams your density gives. Weigh every filled bottle.

One 1 kg batch · one pack of 10 Gold 120 ml bottles + the water-calibrated control · 100 ml target fill
Filling method is the only variable
Bottles Filled Record What it tells you
Control (one bottle, kept) Water to the mark, then blend to the same mark Water grams, blend grams, density Your density and target fill weight
E1–E5 By eye to a line matched to the control Weight of every bottle How much by-eye fills vary
W1–W5 By weight to the target grams on the tared scale Weight of every bottle How much weighed fills vary — your scale step
Leftover in the vessel — Grams Your real transfer loss

If the E bottles spread by several grams and the W bottles sit within your scale's step, you have measured why bottle counts and customer experience both drift with by-eye filling. Add up all ten bottles and the leftover: the difference from 1,000 g is your real transfer loss, which replaces the 2% on this page. Then insert 8 black fibre reeds into each and, if you want a performance check, weigh daily for a week — but that is a separate question from how many bottles a kilo fills. The 30-day performance test covers it.

Buying base and oil for a 1 kg batch

A 1 kg batch at 20% needs 200 g of oil and 800 g of base. The oil is simple: two 100 g packs of Orchard Pear (₹760.00). The base is a density question again, because Pure Performance Base is the one CSI base sold in two units — 100 g at ₹325.00 (₹3.25 per g) and 500 ml at ₹1,099.00 (₹2.20 per ml). The 500 ml is cheaper per gram for any density above 0.676 g/ml (₹1,099.00 ÷ 500 ml ÷ ₹3.25 per g), which almost certainly includes yours — but the cheapest way to make exactly 800 g can mix the two.

800 g of Pure Performance Base · example densities · CSI live pricing, pulled 14 October 2026
Cheapest listed packs for 800 g of base
Base density (example) Cheapest mix Cost Spare 500 ml only Cost Spare
0.650 g/ml 8 × 100 g ₹2,600.00 0.0 g 3 × 500 ml ₹3,297.00 175.0 g
0.676 g/ml 8 × 100 g ₹2,600.00 0.0 g 3 × 500 ml ₹3,297.00 214.0 g
0.800 g/ml 2 × 500 ml ₹2,198.00 0.0 g 2 × 500 ml ₹2,198.00 0.0 g
0.950 g/ml 2 × 500 ml ₹2,198.00 150.0 g 2 × 500 ml ₹2,198.00 150.0 g
1.000 g/ml 1 × 500 ml + 3 × 100 g ₹2,074.00 0.0 g 2 × 500 ml ₹2,198.00 200.0 g
1.050 g/ml 1 × 500 ml + 3 × 100 g ₹2,074.00 25.0 g 2 × 500 ml ₹2,198.00 250.0 g

At an example 1.00 g/ml, one 500 ml bottle and three 100 g packs make exactly 800 g for ₹2,074.00, against ₹2,198.00 for two 500 ml bottles — but the cheaper mix has no margin for drainage or a lighter lot. For a first batch, two 500 ml bottles leave you 200 g of spare base at that density for the next batch or for a retest. Larger quantities of any base are quoted on WhatsApp; there is no 1 kg or 5 kg base listing and no published volume discount.

1 kg batch at 20% + one pack of bottles and reeds · pulled 14 October 2026 · oil pulled 24 September 2026, stock re-checked 14 October 2026
The priced 1 kg batch and test
Item Need Buy Price Note
Pure Performance Base 800 g 2 × 500 ml ₹2,198.00 Exact-mix option ₹2,074.00, no margin
Orchard Pear 200 g 2 × 100 g ₹760.00 ₹3.80 per g
Gold Reed Diffuser Bottle 120 ml 10 bottles (control from the pack) 1 pack of 10 ₹1,062.00 100 ml fill in the 120 ml variant
black fibre reeds 10 × 8 1 × pack of 100 ₹800.00 ₹8.00 each
Materials ₹4,820.00
Weighing Scale + 250 ml beaker if needed 1 + 1 ₹954.00 Resolution and capacity not published
Argued against our own interest, plainly. If your blend turns out heavier than 0.98 g/ml and you need exactly ten full 100 ml bottles, the honest fix is a slightly bigger batch, not a slightly lower fill. Make 1,020 g instead of 1,000 g at 1.00 g/ml — 204.1 g of oil — and keep the label honest. Do not buy the 100 g base packs for a production run because they look like "exact" amounts: above 0.676 g/ml, every gram from a 100 g pack costs more than a gram from a 500 ml bottle.
Ten bottles from a kilo is a density, not a promise. Weigh 100 ml of your blend, and the bottle count writes itself.
— CandleMakingSuppliesIndia
Promising a bottle count for Diwali on Sunday 8 November 2026? Measure the density of each formula now, before you quote quantities to customers — it takes ten minutes and a scale. Send us your batch size, fill and density on WhatsApp and we will help you work out the bottles and the base to buy — listed packs only, larger quantities by quote, no published volume discount.
Check my bottle count

The decision rule

Working decision rule
From density to a bottle count you can promise
If your measured density is With a 2% loss Do this
≤ 0.98 g/ml 1 kg fills ten 100 ml bottles Promise ten; fill by weight to the target grams
0.98–1.00 g/ml Nine, unless your real loss is lower Measure your loss; or make a slightly bigger batch for ten
1.00–1.09 g/ml Nine Plan nine per kilo, or batch size = 10 × 100 ml × density ÷ (1 − loss)
> 1.09 g/ml Eight Plan eight per kilo, or enlarge the batch with the same formula
Not yet measured Unknown Don't promise a count yet. Weigh 100 ml of the rested blend

For bigger runs, the same arithmetic scales: base for 100 bottles of 100 ml at 20% and monthly wholesale requirements both start from the bottle count and work back to kilograms, and scaling a trial to a 10 kg batch shows how to buy base in 500 ml when the formula is in grams. The section capstone puts density measurement into the full development sequence.

The CSI products in this batch

1
The base sold in two units
Pure Performance Base — Professional Reed & Car Diffuser Base
CSI's product page describes Pure Performance as neutral, for all fragrance families, 10–30% with 20% recommended and a typical 75% base + 25% fragrance working blend. It is the only CSI base sold in 100 g as well as 500 ml; the 500 ml is cheaper per gram above 0.676 g/ml. Composition and density are not published.
Size Price Per listed unit Per gram Stock (14 Oct 2026)
100 g ₹325.00 ₹3.25 per g ₹3.25 (weighed, no density needed) In stock
500 ml ₹1,099.00 ₹2.20 per ml ₹2.20 at an example 1.00 g/ml In stock
₹2,198.00 for 2 × 500 ml Buy Pure Performance Base
2
Example oil · 20 g per bottle at 1.00 g/ml
Orchard Pear Fragrance Oil
A fruity fragrance in CSI's range; CSI publishes no density, IFRA percentage or diffuser performance for it. Ask on WhatsApp for its IFRA certificate and read the Category 10A limit before you fix 20%.
Pack Price Per gram Bottles at 20.00 g oil
15 g ₹105.02 ₹7.00 0.8
50 g ₹240.00 ₹4.80 2.5
100 g ₹380.00 ₹3.80 5.0
500 g ₹1,870.00 ₹3.74 25.0
1 kg ₹3,738.00 ₹3.74 50.0
₹760.00 for 2 × 100 g Buy Orchard Pear
3
100 ml fill in the 120 ml variant
Gold Reed Diffuser Bottle (clear glass, gold-tone screw cap)
Clear glass, gold-tone screw cap, packs of 10. The listing's variants are 50 ml and 120 ml (its text also mentions 100 ml — quote the variants). Fill line, brim capacity and neck size are not published; calibrate one bottle with water to set your 100 ml mark.
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
₹1,062.00 for 10 × 120 ml Buy Gold Reed Diffuser Bottles
4
Density measurement
Measuring and mixing tools
A scale and a graduated beaker measure your blend's density in minutes; the water-calibrated bottle method uses the scale and one of your bottles. CSI does not publish the scale's resolution or capacity — check both.
Item Price Stock (14 Oct 2026)
Weighing Scale ₹354.00 In stock
Silicon Measuring Beaker 250 ml ₹600.00 In stock
₹954.00 for scale + 250 ml beaker Buy the Weighing Scale
5
8 per 100 ml bottle
Fiber Diffuser Reeds (Black)
Fibre reeds, 20.3 cm, diameter not published. CSI's reed page suggests 6–8 reeds for a 50–100 ml bottle; 8 is the top of that range. From 50 reeds up, ₹8.00 each.
Pack Price Per reed Bottles at 8 reeds
Pack of 25 ₹236.00 ₹9.44 3
Pack of 50 ₹400.00 ₹8.00 6
Pack of 100 ₹800.00 ₹8.00 12
Pack of 500 ₹4,000.00 ₹8.00 62
₹800.00 for 1 × pack of 100 Buy black fibre reeds
Not 1 kg, or not 100 ml? Replace the numbers: bottles = batch g × (1 − loss) ÷ (fill ml × density). For 50 ml fills, a kilo at 1.00 g/ml and 2% loss gives 19 bottles; for 110 ml fills, 8. A 120 ml bottle at 20% by weight covers a single bottle in grams. Bases are in Reed & Car Diffuser Base.
Why trust this guide

CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not finished diffusers. The page tells you that ten bottles from a kilo is not automatic, that the 100 g base packs cost more per gram than the 500 ml above 0.676 g/ml, and that the honest fix for a short batch is a bigger batch, not a lower fill.

Diffuser base, reed, bottle, beaker, scale and mixer 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, millilitre, pack count, per-bottle cost and kit total on this page is computed and shown to two decimals so you can check it; ml ↔ g conversions use labelled example densities with a ±5% sensitivity, because no density is published for any CSI base or oil.

Bottle counts per arm, rest and hold checkpoints, weighing schedules, room-scoring scales, filling-loss allowances and pass lines are labelled working practices, not industry standards — none is published for reed diffusers. The densities from 0.90 to 1.10 g/ml, the 2% transfer loss, the ideal-mixing blend approximation, the 100 ml fill, the 8 reeds and the ten-bottle filling test are labelled examples. Water weighing close to 1 g per ml at room temperature is general knowledge used for calibration. For help building a test kit, bulk quotes, GST invoicing, an oil's MSDS or IFRA certificate, or to ask whether an SDS or technical data sheet is available for a base, message us on WhatsApp at +91 7397976926.

Frequently asked questions

How many 100 ml reed diffusers can I make from 1 kg?
Ten if your finished blend weighs 1.00 g/ml or less and nothing is lost; with a 2% transfer loss the cut-off is 0.98 g/ml. Above that, nine. Weigh 100 ml of your blend to know.
Is 1 kg of reed diffuser oil the same as 1 litre?
Only if it weighs exactly 1.00 g per ml. Lighter blends give more than a litre per kilogram, heavier ones less. No density is published for CSI's bases or oils.
How do I find the density of my reed diffuser liquid?
Weigh 100 ml of the rested blend in a beaker on a tared scale and divide by 100, or fill one bottle with water to a mark, weigh it, then refill it with blend to the same mark and divide the blend's grams by the water's.
Does fragrance oil density affect how much reed diffuser I can make?
Yes, through the blend's density. At 20% oil the effect is diluted by the base — roughly a fifth of the oil's difference from the base.
How much should a 100 ml reed diffuser weigh?
100 ml × your blend's density in g/ml — 100 g at 1.00 g/ml, 105 g at 1.05 g/ml — plus the bottle and reeds. Fill to that target weight on a scale.
Should I buy diffuser base in 100 g or 500 ml?
For Pure Performance, the 500 ml is cheaper per gram for any density above 0.676 g/ml. Mixing one 500 ml with a few 100 g packs can hit an exact weight, but leaves no margin.
Weigh it, then count it
Your blend's density decides the bottle count. Measure it once per formula.
Pure Performance Base ₹325.00 for 100 g or ₹1,099.00 for 500 ml, Orchard Pear from ₹105.02 for 15 g, Gold Reed Diffuser Bottle 120 ml ₹1,062.00 for ten, Weighing Scale ₹354.00. Send us your batch size and density and we will help you count bottles and buy base.
Shop reed diffuser bases Send my density on WhatsApp
Continue the read — Fragrance oil percentages and formula calculations
Editorial standards & sources
About this guide: Written by the CANDLEMAKINGSUPPLIESINDIA team. The yield formula, density methods, filling test and decision rule apply to any base and oil from any supplier; 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: Fragrance oils — CSI live pricing, pulled 24 September 2026, stock re-checked 14 October 2026: Orchard Pear Fragrance Oil ₹105.02 / 15 g, ₹240.00 / 50 g, ₹380.00 / 100 g, ₹1,870.00 / 500 g, ₹3,738.00 / 1 kg. Diffuser products — CSI live pricing, pulled 14 October 2026: Pure Performance Base ₹325.00 / 100 g, ₹1,099.00 / 500 ml; Gold Reed Diffuser Bottle 50 ml pack of 10 ₹826.00, 120 ml pack of 10 ₹1,062.00; 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; Silicon Measuring Beaker 100 ml ₹300.00, 250 ml ₹600.00; Weighing Scale ₹354.00; CSI Pro Mixer ₹349.00.

Non-price figures and assumptions: Load convention: fragrance load is a share of the total blend by weight (oil g = batch g × L; base g = batch g × (1 − L)). Labelled examples: blend densities 0.90–1.10 g/ml; oil densities 0.90–1.05 and base densities 1.00–1.05 g/ml; blend density by ideal mixing (1 ÷ (L ÷ oil density + (1 − L) ÷ base density)) as an approximation; 2% transfer loss; 100 ml fill in the 120 ml Gold bottle; 8 reeds per bottle; 20% load. Pure Performance break-even between 100 g and 500 ml: ₹1,099.00 ÷ 500 ml ÷ ₹3.25 per g = 0.676 g/ml. Water's density close to 1 g/ml at room temperature is general knowledge. What CSI's diffuser-base pages state (quoted as claims to test, not CSI test results): every base is a crystal-clear "Professional Reed & Car Diffuser Base" with a 10–30% fragrance range and a 24–48 hour rest before bottling. Pure Performance — neutral, for all families, 20% recommended, typical 75% base + 25% fragrance, example 75 ml + 25 ml for 100 ml at 25%; Longevity — oriental, woody, resinous, spicy and gourmand, avoid light florals, citrus and aquatics, "heavy oils like oud can cloud at maximum load in some bases"; Lift — floral, citrus, green and fruity; Depth — chypre, leather, smoky and rich gourmand; Softness — soft florals, powdery/musky and light gourmand. CSI HyperDiffusion Base™ (₹1,499.00) is out of stock. Reed page: length 20.3 cm and "6–8 reeds" for a standard 50–100 ml bottle; reed diameter not published. Gold bottle: neck diameter, fill line and any reducer not published. CSI publishes no composition, density, viscosity, evaporation rate, flash point or shelf life for any diffuser base, no density or IFRA percentage for any fragrance oil, and no diffuser throw, consumption or longevity data for any base, oil or reed. Every density on this page is a labelled example, every load above the page range is excluded, and every pass line is the reader's labelled house standard. IFRA: reed diffusers are listed under Category 10A in current IFRA amendments as commonly summarised by suppliers' IFRA guides — confirm against the category descriptions on your oil's certificate; the lower of the base page's 30% and the certificate's limit applies. Material costs exclude labour, packaging, freight and GST. Diwali 2026 falls on Sunday 8 November.
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