A: If we have stock, MOQ 3000pcs. | B: If out of stock, MOQ is 10000pcs.
Views: 0 Author: Ruijia Packaging Team Publish Time: 2026-11-08 Origin: Site
A glass spray bottle for essential oils has to do two jobs at once, and most sourcing problems start when only one of them is specified. The first job is to deliver the product: a fine, even mist that does not spit, drip or clog, from the first press to the last. The second job is to keep the product inside: essential oils are volatile, they attack many elastomers, and a bottle that loses 2 percent of its fill over twelve months in a warehouse will show a visible drop in the pack and a complaint from the customer. Buyers who specify only the bottle and leave the pump to the supplier usually get a pump chosen for cost rather than for the formula. This guide sets out the parameters that matter, from glass colour to orifice diameter to evaporation testing, based on the questions our export customers ask most often at Guangzhou Ruijia Packaging Products Co., Ltd., a cosmetic and aromatherapy packaging manufacturer with more than 15 years of experience.
Essential oils are sensitive to ultraviolet and short-wavelength visible light, and the choice of glass colour is the first functional decision, not a cosmetic one. Amber glass blocks most ultraviolet transmission and is the default for single-note oils, blends sold in clear-label retail packs, and anything with a shelf life beyond twelve months. Cobalt blue offers a similar level of protection with a different shelf presence and is popular in aromatherapy ranges where colour coding by fragrance family is used.
Clear flint glass gives the best view of the product and the strongest decoration contrast, but it offers almost no protection. It is appropriate for products sold in an outer box, for oils consumed within a few months, and for sampler sizes where the visual appeal outweighs the shelf-life risk.
Frosted glass diffuses light and reduces transmission modestly, and it hides the fill level, which is useful where a slight variation in fill weight would otherwise be visible. The frosting is usually acid-etched, which is part of the glass and does not peel; sprayed frosting is a coating and can wear at the shoulder.
A practical rule for buyers is to match the glass to the delivery format. A bottle that will sit on an open retail shelf for a year needs amber or cobalt and an outer carton. A bottle that is used within weeks of purchase, or sold in a closed set, can use clear glass and rely on the secondary pack for protection.
The aromatherapy category uses a compact size range, and each size has a different pump requirement. Below 10 ml the bottle is usually a sample or a purse format, and the pump must be small enough that the spray is still usable with a short stroke. Between 10 and 30 ml the pack is a retail single oil or a travel blend, and this is where most of the volume sits. Between 30 and 100 ml the pack is a room spray, a body mist or a refill, and the pump must deliver a larger dose per stroke without dripping.
Nominal capacity | Usable fill | Typical diameter | Typical height | Typical neck finish | Pump type | Typical use |
|---|---|---|---|---|---|---|
5 ml | 4.5 to 5 ml | 22 to 25 mm | 55 to 65 mm | 13 to 15 mm | Mini crimp or screw mist | Sample, purse, single dose |
10 ml | 9 to 10 ml | 25 to 28 mm | 65 to 75 mm | 15 to 18 mm | Fine mist, low dose | Retail single oil, travel |
15 ml | 14 to 15 ml | 28 to 32 mm | 70 to 85 mm | 18 mm | Fine mist | Blend, roller alternative |
20 ml | 18 to 20 ml | 30 to 34 mm | 75 to 90 mm | 18 to 20 mm | Fine mist | Blend, gift set |
30 ml | 27 to 30 ml | 34 to 38 mm | 85 to 100 mm | 20 mm | Standard mist | Body mist, room spray |
50 ml | 45 to 50 ml | 38 to 42 mm | 95 to 115 mm | 20 to 24 mm | Standard mist, high output | Room spray, linen spray |
100 ml | 90 to 100 ml | 42 to 48 mm | 110 to 135 mm | 24 mm | High-output mist | Refill, professional use |
Values are indicative planning ranges; final dimensions and neck finish must come from the approved drawing.
Two closure systems dominate. A crimp pump is permanently attached to the bottle by a metal collar that is compressed onto the glass neck. It cannot be removed without damaging the bottle, which makes the pack tamper-evident by construction and eliminates the risk of a consumer loosening the pump. It also gives the most consistent seal, because the collar compression is set by the filling machine rather than by hand.
A screw pump is removable and re-closable, which suits refillable packs, sample programmes and brands that want the customer to be able to top up. The trade-off is seal consistency: the seal depends on the torque applied at filling and on the gasket between the pump and the neck, and a poorly torqued screw pump is the most common cause of leakage in this category.
Within each system there are two spray characters. A fine mist pump produces small droplets and a wide cone, which is right for facial mists, pillow sprays and aroma diffusion. A stream or spray pump produces larger droplets and a narrower cone, which is right for room sprays and surface applications. The difference is created by the orifice and the pump chamber, not by the actuator alone, so the specification should name the spray character rather than only the actuator colour.
Pump type | Seal consistency | Refillable | Tamper evidence | Best fit | Watch out for |
|---|---|---|---|---|---|
Crimp pump, fine mist | Highest | No | Inherent | Retail single oils, facial mist | Collar colour and glass neck must match exactly |
Crimp pump, stream | Highest | No | Inherent | Room and linen spray | Higher output empties the bottle quickly |
Screw pump, fine mist | Depends on torque | Yes | Requires a neck ring | Refill programmes, samples | Leak risk if torque is not controlled at filling |
Screw pump, stream | Depends on torque | Yes | Requires a neck ring | Large room sprays | Gasket compatibility with oils |
Trigger sprayer | Good | Yes | Low | Household and bulk sizes | Not premium; large minimum order |
The orifice diameter controls droplet size and output per stroke. A 0.10 to 0.15 mm orifice gives a fine, low-output mist suitable for facial use; 0.18 to 0.25 mm gives a fuller spray for body and room applications; above 0.30 mm the spray becomes a wet stream. The correct choice depends on the viscosity and surface tension of the liquid, not on the bottle size alone.
Essential oil blends vary widely in viscosity. A single note such as lavender is close to water; a blend with jojoba or fractionated coconut oil can be several times thicker, and a thick liquid will not atomise properly through a fine orifice. Where the formula contains a carrier oil, the pump should be specified with the formula viscosity and tested with the actual liquid, not with water.
The dip tube length must reach the bottom of the bottle without touching it, typically 2 to 4 mm above the base, and it should be long enough that the bottle can be used at a tilt. A tube that is too short leaves product that cannot be sprayed; a tube that is too long bends and restricts flow. For small bottles, a tube with a slight angle or a micro-bore is used so that the last few millilitres can still be drawn.
Essential oils are the most demanding content for a spray pack because they dissolve many seal materials and they evaporate quickly. Three tests should be written into the purchase order, and all three should be run with the actual formula rather than with water.
The first is a leak test, with the filled bottle inverted or pressurised in a vacuum chamber at minus 40 to minus 60 kPa for 30 seconds and inspected for droplets or bubbles at the collar, the neck and the actuator. The second is an evaporation test: weigh ten filled bottles, store them at 40 degrees Celsius for 28 days, and weigh again. A loss above 0.5 percent of fill weight indicates a vapour path through the pump or the collar. The third is a functional test: 200 consecutive actuations on a sample of units, checking for output consistency, spitting, dripping and clogging.
Test | Method | Acceptance | What it detects |
|---|---|---|---|
Vacuum leak | Minus 40 to 60 kPa, 30 seconds, inverted | No droplet or bubble | Collar, neck and gasket leaks |
Evaporation | 40 degrees Celsius, 28 days, gravimetric | Loss under 0.5 percent of fill | Vapour transmission through the pump |
Actuation | 200 strokes per unit, 10 units | Consistent output, no drip or spit | Pump wear, orifice mismatch, clogging |
Drop | 1.2 m, six faces, filled | No breakage or leakage | Glass strength and packing protection |
Compatibility | Formula filled, 4 or 12 weeks, three temperatures | No swelling, discolouration or torque loss | Elastomer and gasket attack |
Transport | ISTA 1A or 3A | Loss rate within agreed limit | Cumulative shipping damage |
The glass is inert, but the pump is not. Nitrile, EPDM, silicone and fluoroelastomer seals behave very differently in prolonged contact with limonene, eugenol, menthol and other terpenes. A seal that is perfectly adequate for a water-based mist can swell by 10 percent in a citrus oil and lose its compression, which then produces a leak that appears only after the pack has been on the shelf for a month.
Ask the pump supplier for the elastomer specification and for compatibility data against the main constituents of the formula, then confirm with a 12-week immersion test at 40 degrees Celsius: measure seal swell, hardness change and extractables, and check the liquid for colour and odour change. Where the formula is a concentrated blend, a fluoroelastomer or a laminated seal is usually the safer choice, at a higher pump cost.
Aluminium collars and actuator components should be lacquered or coated where the formula is acidic, because essential oils with a high acid value can attack an uncoated collar and produce a dark ring at the neck.
A 10 ml bottle offers very little printable area, and the decoration decision has to be made before the bottle is chosen. Silk screen printing works well on cylindrical surfaces and is the cheapest option for a one or two colour logo, but on a 25 mm diameter bottle the usable print height is often under 25 mm. Pressure-sensitive labels allow full-colour artwork and variable data such as batch and best-before, at the cost of a smaller printable area and a label that can lift on an oily surface.
For amber and cobalt glass, contrast matters: white, gold and silver inks read best, while dark colours disappear. For clear glass, a clear label with white print gives a clean, minimal look but requires a high-opacity white ink to remain legible.
Tamper evidence is usually provided by the crimp collar, which cannot be reattached once removed, or by a neck ring on a screw pump, or by a shrink band. Where the product is sold in a regulated market, the tamper-evident feature should be described in the technical file rather than left to the filling line.
Glass spray bottles are usually available from stock moulds in a small number of sizes, and the fastest route to market is a stock bottle with a stock pump and a printed or labelled decoration. A stock combination typically starts at a few hundred to a few thousand pieces and ships in 7 to 15 days. A custom colour, a custom pump specification or a new bottle mould moves the minimum order up and the lead time out, usually to 20 to 30 days for a custom colour and 30 to 45 days plus tooling for a new mould.
Freight deserves attention because glass is heavy and the pack is small. A carton of 100 ml bottles weighs far more than a carton of 10 ml bottles for the same piece count, and the choice between a 20-foot and a 40-foot container can change the landed cost per unit more than a small change in the bottle price. Buyers should ask for the carton dimensions, the pieces per carton and the gross weight for each size, and model the freight before comparing quotations.
A complete specification for a glass spray bottle for essential oils contains the bottle capacity and usable fill, the glass type and colour with a physical standard, the dimensional drawing with neck finish and tolerance, the pump type with spray character, orifice diameter, dip tube length and elastomer specification, the collar or cap material and colour, the decoration method with artwork and colour references, the tamper-evident feature, the packing specification with carton dimensions and quantity, the documentation package including material and migration declarations, and the Incoterm with port.
When requesting samples, ask for three things beyond the sample itself: the pump datasheet with the orifice and elastomer specification, a filled sample with a representative liquid so that the spray character can be judged, and the dimensional drawing. A sample bottle with a mismatched pump will give a misleading impression of the spray, and a sample without the datasheet cannot be approved technically.
At Guangzhou Ruijia Packaging Products Co., Ltd., glass essential oil bottles are produced in amber, clear, frosted and coloured glass from 1 ml to 100 ml, with crimp and screw pumps, droppers and roller caps, and decoration in silk screen, hot stamping, labelling, laser engraving, frosting, painting and electroplating. Our team provides free design support, 3D rendering within 15 minutes and free custom samples, which allows a brand to test the spray character and the seal before committing to a production order.