How to Build a Clear RFQ for Custom Glass Bottles and Jars

An RFQ for custom glass bottles and jars should make the supplier able to quote the same project the buyer wants to sample. The RFQ does not need invented prices, fixed minimum order quantities or promised lead times. It needs product use, capacity, size limits, neck finish, closure or accessory details, decoration artwork, quantity plan, sample request, packing route, inspection expectations and the items the supplier must answer. Clear inputs reduce vague quotes and avoid sample rounds that solve the wrong problem.

Start With Product Use and Filling Content

State what the package will hold and how it will be used. A serum bottle, perfume bottle, diffuser bottle, liquor bottle and food jar create different closure, label, filling and packing questions. If the formula or fill is confidential, describe the relevant constraints under an NDA path: oil exposure, alcohol exposure, viscosity, light sensitivity, hot fill, cold storage, repeated opening or child-resistant expectations where applicable.

Define Shape, Capacity and Size Limits

Attach a drawing, sketch, reference photo or target product link. Give nominal fill volume, desired fill level and any height, diameter, shelf or carton limits. If the brand has an existing bottle, send the physical sample or the drawing. Ask the supplier to distinguish stock mold, modified mold and new mold routes instead of quoting all three as if they were equal.

Specify Neck Finish and Components

The neck finish connects the glass to the closure system. Include cap, pump, sprayer, dropper, inner plug, liner, gasket, collar or overcap requirements. For a custom project, the RFQ should ask whether the supplier will provide the full assembly or only the glass. Buyers planning skincare lines can reference the cosmetic bottle and jar series to organize bottle and jar families before requesting a quote.

Decoration and Artwork Files

Send logo files, label dielines, color references and finish expectations. Say whether the target is screen printing, hot stamping, spray coating, frosting, label, embossing or a combination. If the artwork is not final, identify it as a size and placement study. For projects with private shape work, custom packaging development support can help align drawing, decoration area and sample approval before quoting becomes too rigid.

Order Quantity and Batch Plan

Give the target order quantity and expected repeat pattern, but do not force the supplier to confirm a fake number. Ask for pricing boundaries by quantity tier only when the supplier can support them. If the first order is a market trial, state that clearly because it can change whether stock molds, neutral decoration or staged tooling make more sense.

Sample Type and Approval Route

Ask which samples will be supplied: stock sample, decorated sample, mold sample, assembled sample or packing sample. A stock sample can prove hand feel and rough fit, but it cannot prove final decoration or a new mold. A decorated sample can prove visual finish, but it may not prove mass-production consistency. A packing sample proves the export pack, not the formula compatibility.

Packing, Transport and Inspection

Request the proposed pieces per carton, inner divider or tray, carton dimensions, gross weight and pallet loading method. Ask what inspection points the supplier recommends for the chosen product and which approval sample will be retained. If the package must meet a market or product-category requirement, confirm that requirement separately and request documentation appropriate to that exact route rather than assuming a general certificate applies.

Copy-Ready RFQ Checklist

• Product use and filling content.
• Target shape, capacity, dimensions and reference samples.
• Neck finish, closure, pump, dropper, cap, plug, liner and overcap.
• Glass color, transparency and decoration process.
• Artwork files, color references and label or print area.
• Order quantity, batch plan and sample type requested.
• Packing method, carton count request and shipment route.
• Quality checks, retained sample and approval owner.
• Files attached and open questions for supplier reply.

End the RFQ by asking the supplier to list assumptions, exclusions and information still needed. That final section often reveals whether the quote includes glass only, full assembly, decoration, packing, samples, tooling or freight. Buyers ready to proceed can send a structured glass packaging RFQ with the checklist attached.

Files to Attach

A strong RFQ usually includes more than a written request. Attach a bottle drawing if available, reference photos with comments, artwork files, label dimensions, closure photos, filling-line limits, carton requirements and any previous sample feedback. If a reference product is only for style, mark it clearly so the supplier does not quote an exact copy. If a component must be sourced by the supplier, include the expected color, finish, material concern and assembly method.

Buyers should also tell suppliers which information is still flexible. A project may have a fixed fill volume but flexible shoulder shape. Another may have a fixed cap but flexible glass body. Stating the fixed and flexible parts helps the supplier suggest a realistic stock mold, modified mold or custom mold path instead of guessing which requirement matters most.

How Suppliers Should Reply

The supplier reply should not be only a price. Ask for the quoted scope, assumptions, excluded items, sample route, decoration process, mold route, component scope, packing proposal and information still missing. The reply should say whether the quote includes plain glass, decorated glass, full assembly, export packing, sample cost, mold work or freight. If any point is supplier-dependent, it should be listed rather than hidden.

For complex projects, request two options: a lower-risk route using an existing body and a custom route that better matches the brand. Comparing those options helps the buyer decide whether private shape work is worth the added sample and approval effort. It also gives procurement a real basis for negotiation instead of asking every supplier to cut a price that may not cover the same scope.