My Diwali Production Will Need 300 Kg of Soy Wax — How Far in Advance Should I Procure It While Protecting Against Batch Variation?

About 40 days before Diwali — which, for 8 November 2026, means order this week

"How far in advance" has no fixed answer, because it is the sum of every step between ordering wax and a customer holding a candle. So count it backwards. Diwali 2026 falls on Sunday 8 November 2026. If your last customer dispatch should leave 8 days before — an example that covers courier transit and the days customers want gifts in hand — that is Saturday 31 October 2026. Two days for packing means every candle must be cured by Thu 29 Oct. A 7-day cure checkpoint (an example; Luxury Soy Wax Chunks' product page states 48 hours minimum and ideally 1–2 weeks, and no cure time is published for CSI 464) puts the last pour on Thu 22 Oct.

Now the production itself. 300 kg of wax makes about 1,553 candles of 200 g at 8% fragrance load (184 g of wax each, plus a 5% working allowance for pour loss and tests). If your workshop pours 25 kg of wax a day — an example capacity, about 129 candles — that is 12 working days (Monday to Saturday), so the first pour is Fri 9 Oct. Allow 3 days on arrival to check the delivery against a retained sample, so the wax must be in hand by Tue 6 Oct. With the reader's one-week supplier lead time, the order should have been placed by Tuesday 29 September 2026 — 40 days before Diwali.

Today is Thursday 1 October 2026. On those assumptions you are 2 days late, which is recoverable but leaves no slack. The recovery plan below orders today, checks the delivery on arrival, and raises daily output to 30 kg so that production finishes on Thu 22 Oct. If you cannot raise output, the alternative is to start the first production days from wax you already hold while the delivery travels. Either way, the answer to the title is the same: for a 300 kg festive run, procurement starts about six weeks out, and for this Diwali that means this week.

The backward schedule, step by step

Every duration in this table is a labelled assumption. Replace each one with your own: your courier's real transit to your customers, your real packing speed, your chosen cure checkpoint, your measured daily output and your supplier's actual lead time. The dates then recalculate themselves.

Protecting 300 kg against batch variation

The second half of the question is about batch variation: the risk that wax delivered in October behaves differently from the wax you approved in July. CSI publishes no lot numbers, certificates of analysis or batch-consistency data for its waxes, and this page will not pretend otherwise. What you can do is reduce how many lots you mix, make every lot traceable with your own labels, keep a physical reference sample, and check each delivery against it before it reaches production.

If one delivery is not possible, split the order into as few tranches as you can, each large enough to finish a run of SKUs. Two tranches of 150 kg — one ordered today, one a week later — are easier to control than six of 50 kg. Run each SKU from one tranche where possible, so that if a lot does behave differently, the difference appears between SKUs rather than inside one. Whether to test every lot before mixing it into production goes into the per-lot decision in detail, and what to record for every delivery gives the record format.

The lot check: 2 + 2 candles on the day the wax arrives

This is a short confirmation, not a qualification — the wax is the one you already approved, so you are looking for a difference, not proving suitability. The control is your retained sample from the approved lot (or, if you kept none, a finished candle from your last approved batch, noting its age). Two candles from the retained sample, two from the new delivery, same oil lot, same wick, same jar, same day. Two of each is a labelled working practice for a routine check; scale it up if anything looks wrong.

The full festive order, priced

Here is what 300 kg of production actually needs from CSI, priced with listed bags. The oil is matched to the wax: at 8% of finished weight, every 184 g of wax carries 16 g of oil, so 300 kg of wax (which already includes the 5% allowance) needs about 26.1 kg of oil.

Per candle, that is ₹93.36 of wax, ₹72.88 of oil, ₹5.90 for the wick and ₹70.80 for the jar: ₹242.94 in materials. The wax is about 39% of the order — which is why a delay or a doubtful lot of wax is so expensive: it holds up an order whose other materials are already paid for. Cinnamon Vanilla does carry a small per-gram step at the bigger sizes (₹4.84 a gram at 100 g, ₹4.55 at 1 kg), so festive oil is one place where the 1 kg bottle earns its keep.

The decision rule: order date, quantity, delivery split

For the maker in this example the concrete actions today are: order Luxury Soy Wax CSI 464, 30 × 10 kg (₹1,52,220.00) and the Cinnamon Vanilla, ask on WhatsApp for a single delivery, set aside a retained sample of the approved lot, and book the production calendar at 30 kg a day from Mon 12 Oct. If you cannot run 30 kg a day, start the first two production days from wax already in stock so that the final pour still lands by Thu 22 Oct.

Related festive and bulk questions

This page dates a festive purchase and protects it against lot variation. Testing each lot before mixing it into production goes deeper into the per-lot release; safety stock for a 30–80 kg swing sets the buffer once the season is over; reorder points for fast growth handles the month-to-month rhythm; and the procurement-system capstone turns all of it into one sheet. For heat and monsoon storage of festive stock bought early, see how monsoon and warehouse conditions affect Diwali wax buying.

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