How Do I Calculate Monthly Wholesale Requirements for Reed Diffuser Base, Fragrance Oil, Bottles and Reeds Based on Expected Sales and Supplier Lead Times?
शेयर करना
When should I reorder? At the reorder point: daily usage × effective lead time + safety stock. For base in the example, 22,413 ml.
What lead time should I use? Your own measured order-to-bench time — CSI publishes none — plus incoming check and the 24–48 h rest. Example 7 + 3 = 10 days.
What does the first order cost? ₹3,51,849.60 for the example 600-bottle month from zero stock; about ₹2,25,156.54 a month after. See the order.
The method: need, reorder point, order-up-to
Running out of base, a bottle size or one oil stops the whole bench, and a reed diffuser cannot be rushed: every batch needs its 24–48 hour rest before bottling. So the question in the title has a standard shape, borrowed from ordinary inventory planning. For each material you work out monthly need from expected sales; daily usage from that; a reorder point — the stock level at which you must order so the delivery lands before you run out; and an order-up-to level — how much stock a monthly order should bring you back to.
The formulas are simple. Reorder point = daily usage × effective lead time + safety stock. Order-up-to level = daily usage × (review period + effective lead time) + safety stock. Order quantity = order-up-to level − stock on hand − stock already on order, rounded up to real packs. The two inputs you must supply are the lead time and the safety stock, and neither can come from us: CSI publishes no lead times, so use your own measured time from placing an order to having it on your bench — this page uses an example 7 days — and choose a safety stock you can afford, here an example 7 days of usage.
One adjustment is specific to diffusers. Your effective lead time is the supplier's lead time plus the time it takes before a new delivery can go into a bottle: an incoming check against your retained sample and the batch's 24–48 hour rest. This page adds an example 3 days, so the effective lead time is 10 days. Ignore that and your reorder point is set 3 days too low, and the bench waits.
From a sales forecast to monthly need
The forecast below is an example — replace it with your own. Two formats in the Gold Reed Diffuser Bottle: the 120 ml filled to an example 105 ml with 8 reeds, and the 50 ml filled to 45 ml with 6 reeds. Three fragrances at 20% on one universal base. Liquids carry an example 3% filling allowance, at an example density of 1.00 g per ml.
| Fragrance | 120 ml bottles | 50 ml bottles | Oil per month |
|---|---|---|---|
| Japanese Cherry Blossom | 150 | 100 | 4,172 g |
| Sandalwood | 120 | 60 | 3,152 g |
| Eucalyptus Spearmint | 80 | 90 | 2,565 g |
| Total | 350 | 250 | 9,888 g |
| Material | Monthly need | Daily usage | Safety stock | Reorder point | Order-up-to |
|---|---|---|---|---|---|
| Base (Pure Performance) | 39,552 ml | 1,318.4 ml | 9,229 ml | 22,413 ml | 61,965 ml |
| Japanese Cherry Blossom oil | 4,172 g | 139.1 g | 973 g | 2,364 g | 6,535 g |
| Sandalwood oil | 3,152 g | 105.1 g | 735 g | 1,786 g | 4,938 g |
| Eucalyptus Spearmint oil | 2,565 g | 85.5 g | 598 g | 1,453 g | 4,018 g |
| 120 ml bottles | 350 | 11.7 | 82 | 198 | 548 |
| 50 ml bottles | 250 | 8.3 | 58 | 142 | 392 |
| Black fibre reeds | 4,300 | 143 | 1003 | 2437 | 6737 |
Read the reorder-point column as the trigger. When the base on your shelf falls to 22,413 ml — 45 bottles of 500 ml, rounding up — place the next order. When 120 ml bottles fall to about 198, order bottles. Check stock once a week against these lines and you will rarely be surprised. How much base to buy for 100 bottles at 20% covers the single-batch version of the base calculation, and accounting for density when filling 100 ml bottles from 1 kg explains the ml-to-g step.
Rounding to real packs — and the stock quirks that matter
Every quantity above has to become a real purchase. Base comes in 500 ml bottles (Pure Performance also as 100 g); larger quantities are quoted on WhatsApp with no published discount. Bottles come in packs of ten. Reeds in packs of 25, 50, 100 and 500, at ₹8.00 each from the 50-pack up for black. Oils in the cheapest combination of listed in-stock sizes — and that last phrase matters for this example, because stock is not the same for every oil.
| Material | Order-up-to | Buy | Price |
|---|---|---|---|
| Pure Performance Base | 61,965 ml | 124 × 500 ml | ₹1,36,276.00 |
| Japanese Cherry Blossom | 6,535 g | 65 × 100 g + 3 × 15 g | ₹32,812.00 |
| Sandalwood | 4,938 g | 4 × 1 kg + 1 × 500 g + 4 × 100 g + 1 × 50 g | ₹24,902.72 |
| Eucalyptus Spearmint | 4,018 g | 4 × 1 kg + 2 × 15 g | ₹12,408.88 |
| Gold bottle 120 ml | 548 | 55 × pack of 10 | ₹58,410.00 |
| Gold bottle 50 ml | 392 | 40 × pack of 10 | ₹33,040.00 |
| Fiber Diffuser Reeds (Black) | 6737 | 13 × pack of 500 + 2 × pack of 100 + 1 × pack of 50 | ₹54,000.00 |
| Opening order, CSI subtotal | ₹3,51,849.60 |
Look at the cherry blossom line. On the 14 October stock check, Japanese Cherry Blossom is in stock only in 15 g and 100 g — the 50 g, 500 g and 1 kg are out of stock — so a production quantity has to be built from 100 g packs. That is fine for price (the 100 g is ₹5.00 per gram) but it is a planning signal: a bestseller that can only be bought in small packs this week deserves a larger safety stock than the others, or a check on WhatsApp before you build a festive plan around it. Sandalwood is back in stock in every size after an earlier stock-out — another reason to keep a cushion on oils you depend on. Stock flags change; check them when you order.
The steady monthly order, and the peak month
Once the opening stock is in place, a monthly order roughly replaces one month of use, adjusted by the stock you find on the shelf on review day. On the example forecast that is about 80 bottles of base, the oils, 35 packs of 120 ml bottles, 25 of 50 ml and 8 × pack of 500 + 3 × pack of 100 of reeds — ₹2,25,156.54 at listed prices. The formula for each order is always the same: order-up-to level − on hand − on order.
| Week | On hand | On order | Reorder point | Order now? | Quantity (order-up-to − on hand − on order) |
|---|---|---|---|---|---|
| Week 1 | ___ | ___ | 22,413 ml | yes / no | ___ |
| Week 2 | ___ | ___ | 22,413 ml | yes / no | ___ |
| Week 3 | ___ | ___ | 22,413 ml | yes / no | ___ |
| Week 4 | ___ | ___ | 22,413 ml | yes / no | ___ |
Peak months need the plan to move before demand does. If you expect a festive uplift — the example uses 30% — raise the forecast for that month and the order-up-to level with it, one lead time early. For base, the 30% uplift moves the month's need from 80 to 103 bottles of 500 ml. For any oil with limited pack sizes in stock, ask CSI on WhatsApp before you commit to the festive forecast. 500 diffusers for Diwali corporate gifting covers a one-off peak order in detail, and 1,000 diffusers a month on a bench covers production capacity.
Setting it up in an afternoon
The ordering rule
| If this is true | It means | Do this |
|---|---|---|
| Any material at or below its reorder point | Next order is due | Order up to the order-up-to level, rounded to listed packs |
| An oil you depend on shows limited sizes in stock | Supply risk | Raise its safety stock; ask CSI on WhatsApp before a peak |
| You dipped into safety stock this month | Lead time or demand higher than planned | Re-measure lead time; review the forecast |
| Safety stock untouched for three months | Cushion too large | Reduce it; free the cash |
| A peak month is one lead time away | Plan ahead | Raise that month's forecast and order now |
| Sales well below forecast for two months | Over-stocking | Don't buy yet. Let stock run down to the reorder point |
The CSI materials in this plan
| Pack | Price | Unit rate | Bottles at 84.0 ml base | Stock (14 Oct 2026) |
|---|---|---|---|---|
| 100 g | ₹325.00 | ₹3.25 per g | 1.2 (at 1.00 g/ml, example) | In stock |
| 500 ml | ₹1,099.00 | ₹2.20 per ml | 6.0 | In stock |
| Pack | Price | Per gram | Bottles at 21.0 g oil |
|---|---|---|---|
| 15 g | ₹104.00 | ₹6.93 | 0.7 |
| 50 g | ₹270.00 | ₹5.40 | Out of stock |
| 100 g | ₹500.00 | ₹5.00 | 4.8 |
| 500 g | ₹2,500.00 | ₹5.00 | Out of stock |
| 1 kg | ₹4,842.00 | ₹4.84 | Out of stock |
| Pack | Price | Per gram | Bottles at 21.0 g oil |
|---|---|---|---|
| 15 g | ₹93.22 | ₹6.21 | 0.7 |
| 50 g | ₹271.40 | ₹5.43 | 2.4 |
| 100 g | ₹502.68 | ₹5.03 | 4.8 |
| 500 g | ₹2,513.40 | ₹5.03 | 23.8 |
| 1 kg | ₹5,026.80 | ₹5.03 | 47.6 |
| 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 |
| Pack | Price | Per reed | Bottles at 8 reeds |
|---|---|---|---|
| Pack of 25 | ₹236.00 | ₹9.44 | 3.1 |
| Pack of 50 | ₹400.00 | ₹8.00 | 6.2 |
| Pack of 100 | ₹800.00 | ₹8.00 | 12.5 |
| Pack of 500 | ₹4,000.00 | ₹8.00 | 62.5 |
Related questions in this series
For the per-bottle formula, the pillars are how much fragrance oil to add and how to make a 100 ml diffuser; quantities for 100 bottles of 120 ml with density and filling losses covers one large batch. For buying size, 1 kg, 5 kg or 25 kg of base and one base or several for five fragrances affect how many lines your stock card has. The ₹10,000 starting budget is this section's hub, and the complete guide to starting a reed diffuser business ties every pillar together.
CANDLEMAKINGSUPPLIESINDIA supplies raw materials, not finished diffusers. Inventory advice from a supplier can drift towards "keep more stock". This page sets safety stock as a choice you review and cut, tells you to measure lead time yourself because we publish none, and flags where our own stock of an oil is limited this week. No volume discount or bulk base price is published; larger base quantities are quoted on WhatsApp.
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 forecast, fills (105 ml and 45 ml), reed counts, 20% load, 1.00 g/ml density, 3% filling allowance, 7-day lead time, 3-day check and rest, 7-day safety stock and 30% festive uplift are labelled examples. Reorder-point and order-up-to formulas are standard inventory arithmetic. 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 Start a Profitable Reed Diffuser Business in India — From Choosing the Correct Base and Fragrance Percentage to Testing Diffusion, Calculating Cost per Bottle and Purchasing Raw Materials Wholesale from CSI?
- How Much Fragrance Oil Should I Add to 100 ml of Reed Diffuser Base if I Want a Strong-Smelling Finished Product?
- I Want to Start a Reed Diffuser Business in India with ₹10,000 — Which Base, Fragrance Oils, Bottles and Reeds Should I Buy for My First Products?
- How Much Reed Diffuser Base Should I Buy to Manufacture 100 Bottles of 100 ml Each at 20% Fragrance Load?
- Should I Buy 1 kg, 5 kg or 25 kg of Reed Diffuser Base When Starting a Small Fragrance Business in India?
- I Want to Manufacture 500 Reed Diffusers for Diwali Corporate Gifting — How Do I Calculate the Base, Fragrance, Reeds and Bottle Quantities Required?
- What Raw Materials and Equipment Do I Need to Manufacture 1,000 Reed Diffusers per Month Without Investing in Expensive Machinery?
- I Want to Launch Five Reed Diffuser Fragrances — Should I Buy One Compatible Base in Bulk or Use Different Bases for Different Fragrance Families?
- How Do I Calculate Fragrance Oil and Base Quantities for 100 Reed Diffuser Bottles of 120 ml Each While Accounting for Density and Filling Losses?
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: Japanese Cherry Blossom Fragrance Oil ₹104.00 / 15 g, ₹270.00 / 50 g (out of stock), ₹500.00 / 100 g, ₹2,500.00 / 500 g (out of stock), ₹4,842.00 / 1 kg (out of stock); Sandalwood Fragrance Oil ₹93.22 / 15 g, ₹271.40 / 50 g, ₹502.68 / 100 g, ₹2,513.40 / 500 g, ₹5,026.80 / 1 kg; Eucalyptus Spearmint Fragrance Oil ₹68.44 / 15 g, ₹212.40 / 50 g, ₹354.00 / 100 g, ₹1,652.00 / 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)). 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: monthly forecast Japanese Cherry Blossom 150 × 120 ml + 100 × 50 ml, Sandalwood 120 × 120 ml + 60 × 50 ml, Eucalyptus Spearmint 80 × 120 ml + 90 × 50 ml; fills 105 ml and 45 ml; 8 and 6 black fibre reeds; 20% load; density 1.00 g/ml; 3% filling allowance on liquids; 30-day month; 7-day supplier lead time; 3 days for incoming check and rest; 7 days' safety stock; monthly review; 30% festive uplift. Stock flags as checked 14 October 2026. 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.