A Client Wants 5,000 Candles but I Have Never Produced More Than 500 at Once — Should I Accept the Order or Scale Through Smaller Production Batches?

Your order in numbers, and why 5,000 is not 500 × 10

Write the order down as numbers before you answer. The title gives two: 5,000 candles and a largest-ever run of 500. Everything else below is a labelled worked example for you to replace: a 200 g fill at 8% (the series default), a 6-day week with day 1 a Monday, and a client who asks for all 5,000 in 8 weeks.

At your proven pace, one line pours the order in 60 production days. Add 2 set-up days and a 3-day tail and it is 65 working days, about day 75 on the calendar. To finish in the client's 48 working days on one line, you would have 43 production days and need 123 candles a day: 1.4× the pace you have proven, for seven weeks.

That 1.4× is the trap. It looks like a modest stretch, but you cannot get it by working a little harder. It means bigger melts, more pourers on one line and a faster rhythm, and every one of those changes how a candle is made. Heating and holding a larger melt can change how fragrance is distributed (the 1 kg-to-25 kg scale-up post); a bigger melter is a process change that needs revalidating even with identical materials (the bigger-melter revalidation post). A 500-candle block run exactly as before changes nothing about how each candle is made.

The block plan: 500-unit blocks with QC gates

Each block is your 500-candle run, repeated exactly, with 5 planned extras (3 QC retains and 2 burn-check candles) and a 20-candle loss buffer. When a block's last pour has set for 72 hours, its gate is checked. The next block is already pouring; the block after that is not released until the gate is passed. That overlap keeps the line moving while capping how much can go wrong before you know.

Why a gate catches more than a final inspection: a slow drift in wick centring, a new oil lot that throws differently, or a crew getting tired shows up as a change from block to block. One block is 525 candles, about ₹96,299.11 of CSI materials at this order's per-candle figure. At the worst moment in the two-line plan, about three blocks (1,575 poured candles) are waiting on a gate result. In one 5,000-candle run with no stop points, a drift can be in every candle before anyone burns one.

One line or two

A second line means adding capacity without changing the process. Line B is a copy of line A: same melter size, same batch weight, same station layout, a crew trained by shadowing block 1. Each line keeps the pace you have proven; together they pour about 175 a day. Line A pours block 1 alone while line B trains; from working day 9 both lines pour, so blocks 2–10 run in five rounds.

The full station-by-station capacity model, which tells you whether a second crew and melter really double your output or just move the bottleneck to packing, is the maximum-capacity post. Batch counts from your melter are the 5,000-in-30-days batch post.

What changes at scale even when each block does not

Blocks protect how each candle is made. They do not protect what the order does to the rest of your workshop. Four things change, and each needs a decision before you say yes.

Lots. 976 kg of wax and 85 kg of oil will not come from a single lot unless your supplier tells you so in writing, and CSI does not promise it. Line the lots up with blocks: one wax lot and one oil lot per block where you can, a lot change only at a block boundary, and a side-by-side comparison (cold sniff, colour in wax, a short burn) before a new lot enters a melt. Ask us on WhatsApp for the lot number on each dispatch. Wax lots across one order are the multi-lot QC post; a new oil lot mid-run is the new-lot check post; and when a material goes missing mid-order, the 5,000-candle substitution post sets out the choice between substituting, part-shipping and waiting.

Curing space. Each line pours about 87.5 a day and each candle sits about four days (72 hours set plus a day in the packing queue), so one line needs about 350 rack positions and two lines 700. If your racks held one 500-candle run, line B needs its own racks before it starts. Cure is calendar time and cannot be bought back; how cure age should be standardised across pour days is the cure-standardisation post.

Storage. Shipped all at once, 5,000 candles in 11 × 11 × 8 cm boxes are about 4.84 m³ before outer cartons; phased, the peak is about 1.02 m³. Add the raw materials: tranches keep wax on hand to about 200 kg at a time instead of 976 kg.

People. 41 working days of six-day weeks is seven weeks. Overtime on top of that is where rejects rise and safety slips. Plan it without overtime, rotate tasks, and treat the reject count at each gate as your fatigue gauge. Losses that only appear at volume (heels, top-ups, spills, rejects that are scrapped rather than remelted) are the hidden-losses-at-scale post.

The purchase sheet, bought in five tranches

The sheet assumes your proven formula is Natural Soy Pearl Wax, Jasmine at 8% and an Eco C2 wick in your own 200 g jar. Planned extras (5 a block) and the loss buffer (4%) are separate lines; pieces carry their own 2% buffer; the 1% heel allowance is wax left in melters and pitchers, so it does not double-count rejects. How much each buffer should be is the production-buffer post.

₹183.43 per saleable candle is CSI materials with buffers: ₹82.93 of wax and ₹66.67 of oil among them. It excludes your jars, labour, freight, GST and marketing. Whether your price still covers true cost once test candles, rejects and heels are counted is the true manufacturing cost post. On jars: 5,355 pieces will rarely come from one production batch, and glass varies between batches, so measure a sample from each batch (internal diameter, height, fill line) as it arrives; the extra-wax side of a 1,000-jar run is the extra-wax-for-1,000-jars post.

The tranches cost exactly what one purchase costs, because both products are flat per kilo at these packs, and they cap what you have bought ahead of the gates at two tranches, ₹3,03,268.00, against ₹7,48,000.00 on day 2. Argued against our own interest: we would sell more by asking you to buy 976 kg up front. Don't. If the client cuts the order after block 4, you want to be holding one spare tranche, not three. Wicks, boxes and stickers are flat per piece too; buying them per tranche costs a few spare pieces (on wicks, ₹377.60 for 40 more), which is cheap insurance. The plan leaves about three working days between a gate and the day a tranche must be on your floor. Lead times are not published: ask on WhatsApp before you fix those dates, and if dispatch plus transit is longer, order one tranche further ahead. Split purchasing in general is the split-purchasing post.

Accept, phase, partner or decline

The decision rule for this worked example: accept with conditions if two proven lines finish inside the client's date with at least a few working days spare (41 against 48, 7 spare); phase if only one line is possible; partner or decline if neither fits. The conditions are the ones that make the block plan real.

Partnering means another maker runs blocks for you. It can work, but only on your terms: your block sheet, your materials from your tranches, a sample block that passes your gate before they pour for the order, and their candles burned beside yours at every gate. A partner using their own wax or oil is a different candle with your label on it. If you cannot check their blocks as closely as your own, decline the extra volume instead.

Protect the money. A written order should fix the quantity, fill, scent, label, approved sample, delivery phases, an advance covering at least tranches 1 and 2 and anything client-specific, and what happens if the client changes or cancels after a tranche is bought. Payment per phase matches the cash you lay out per tranche. Sizing the advance is the advance post. This is practical judgement, not legal advice.

What to buy for a 5,000 order, and what to skip

Five items, chosen on page statements, price and stock on 7 October 2026. CSI publishes no burn or throw data, so nothing here is ranked on performance. Each card says when not to buy.

Skip for this order: the 20 kgs melter as a mid-order upgrade, any wax other than the one your 500 were proven in, the 1 kg Jasmine (the 500 g is cheaper here), and all five tranches on day 2. Argued against our own interest: buy nothing beyond tranches 1 and 2 until block 1 has passed its gate. That costs us nothing in the end if the order runs, and saves you a great deal if it doesn't.

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