Wine and Spirits Glass Bottling Line Guide: Level Filling, Oxygen Control and Closure Selection

In our bottling line configurations on our liquid filling lines hub, we build every line to order with filling, capping, and labeling stations included as configured, container feeding/unscrambling and coding/inspection optional, wetted materials/seals and case packing/palletizing to be assessed, bulk storage/blending excluded, and power, compressed air, drains, and floor supplied by the customer.

As part of our Dession group factory in Foshan, Guangdong, China, we specify that a complete-line quotation must define transfer heights, directions, product orientation, inter-machine signals (run, stop, full, empty, reject), and utilities (power, compressed air, and any vacuum or nitrogen supply for each unit), with the line balanced around the slowest unit.

When you review complete liquid filling lines or compare semi-automatic bottle filling lines, defining these mechanical, gas-management, and closure boundaries early prevents rework during factory acceptance.

For a broader comparison across liquid viscosities, see our guide on how to choose a filling line.

In a vacuum wine bottle filler, a vacuum pump creates a low-pressure environment inside the bottle so atmospheric pressure draws wine from the supply line until the liquid reaches the tip of the filling nozzle, breaking the vacuum and stopping flow with virtually no drips or spills; in an overflow filler, wine flows until reaching the nozzle overflow port and excess siphons back to the main tank for an identical liquid level in every bottle.

Vacuum fillers require rigid containers such as glass or hard plastic that maintain structural integrity under vacuum and deliver high fill-level consistency for low-viscosity, free-flowing liquids (wine, spirits, oils, vinegars, perfumes) with reduced foaming and dripping, whereas volumetric piston fillers use a piston-cylinder stroke for high volumetric precision on thick or particulate liquids.

JPACKS wine bottle filling machine selection specifications cite liquid level control accuracy of ±1mm or better, food-grade 304 or 316 stainless steel wetted construction, adjustable bottle compatibility such as 170-340mm height and 50-100mm diameter, and filling speeds ranging from 100-200 BPH on manual tabletop fillers to 6,000-12,000 BPH on automated rotary fillers.

For vacuum wine bottle fillers by head count, a single-head Enolmatic unit fills approximately 180 bottles per hour and draws wine from vessels up to 4 meters (13 feet) below the filler; a 4-head Enolmaster semi-automatic vacuum filler fills approximately 600 bottles per hour for bottle heights of 180-350mm; and fully automatic systems with 12 or more filling heads process 1,500-3,000 bottles per hour or more.

Accutek's AccuVac Series semi-automatic vacuum level fillers fill small volumes from 2 ml to 6 oz of low-viscosity liquids up to 800 cps at speeds up to 35 containers per minute using diving no-drip nozzles and all-pneumatic components that require no electricity for safe use with flammable or sensitive products.

Accutek's analog Siphon Filler stops flow automatically when liquid levels in the 7.5-gallon hopper with float-controlled valve and the bottle reach equilibrium, regulating bottle fill level via the bottle holder rack height, with fill amount 4 oz to 2.5 gal for containers ranging from 2 ounces to 1 gallon (and potentially up to 2 gallons), bottle heights from 4” to 15”, minimum bottle opening of ½”, and speeds from 3 to 30 containers per minute on a five-spout machine.

For conventional glass wine bottles under cylindrical cork, fill height (top of bottle to wine surface) is generally between 55 and 63 mm (with >49 mm corks requiring greater distance) and headspace is 0.1 to 1.0% of total capacity; Australian guidelines specify ullage distance >12 mm at 20°C for standard CE.T.I.E cork mouth bottles and at least 13 mm at 20°C for nominal 750 mL bottles per Amon & Simpson (1986).

An ideal wine filling temperature is around 18°C (wines supplied to bottling facilities outside 15-21°C may incur fees if the wine needs to be chilled or warmed); filling too cold causes bottle condensation that impairs label adhesion unless dried in a post-sealing heat tunnel, while low ullage subjected to moderate heating (~35°C) can raise bottle pressure above 50 kPa (reaching the bottom of the cork at as low as 29°C in poor combinations versus 43 to 55°C for 10-16% alcohol wines with an appropriate closure).

IC Filling Systems states that filling spirits (whisky, gin, vodka, rum, brandy) at 40% ABV strength does not require undue special attention and can use gravity fillers, whereas cask-strength spirits from 45% to over 70% ABV require ATEX rated machines for spirits of 45% ABV and above.

For traditional table wines sealed with cylindrical natural or technical corks, bottle bore profile and cork conditioning must be tightly matched.

Natural cork closures for table wines are usually 44 or 49 mm in length (varying ± 1mm) and around 24 mm in diameter (varying ±0.5 mm); standard CE.T.I.E wine glass finish bottles are designed for 44 mm length closures, whereas at 49 mm depth the bottle neck (particularly on Burgundy-shaped bottles) is more bell-shaped and wider, making seal compression more difficult.

A 44 x 24 mm natural wine cork typically carries 16-18 mg of surface coating/treatment to lubricate entry into the glass neck, has a moisture content of 6±2%, and should contain <2 mg dust per stopper to prevent sealing faults or wine contamination.

In an automatic corker, four jaws compress the cork diameter from 24 mm to about 15-16 mm before a pushing pin inserts it so the stopper neither protrudes above the rim nor is over-inserted by more than 1 mm; the cork recovers about 85% of its original diameter after a few hours, and CE.T.I.E (1980) recommends keeping filled bottles upright for a minimum of three minutes (while Amon & Simpson 1986 recommend at least five minutes and preferably one to two hours).

To prevent bottle pressure from exceeding 1 bar (100 kPa) during thermal expansion or reaching the critical leakage pressure of 200 kPa per Amon & Simpson (1986) (with Cork Supply Australia recommending <20 kPa at 20ºC), vacuum corkers extract air from the bottle neck via a vacuum pump channel during cork insertion, yielding an average headspace pressure of -5 kPa under vacuum fill compared to 15 kPa under non-vacuum normal fill.

Cylindrical cork extraction force should be measured more than one hour after sealing; McMahon (1994) and CE.T.I.E (2008) specify natural cork extraction forces of 230–400 N (McMahon) or 120–350 N (CE.T.I.E) for 38 x 24 mm corks, 250–450 N (McMahon) or 120–400 N (CE.T.I.E) for 44 x 24 mm natural corks (100–450 N for synthetic), and 270–480 N (McMahon) for 49 x 24 mm corks.

Aluminum wine screw caps (Stelvin / BVS) seal by compressing a three- or four-layer PVDC (Saran) liner disc with an expandable polyethylene backing against the glass bottle neck rim rather than the internal bore; Saran Tin liners have an oxygen transmission rate (OTR) of typically 0.00005-0.0005 cc O2/day, while Saranex liners have an OTR an order of magnitude higher at around 0.0001-0.001 cc O2/day.

During Bague Verre Stelvin (BVS) aluminum ROPP screw-cap application, a rotating sealing head pushes a plunger/pressure pad and circumferential redraw die down onto the cap rim and slightly down the side of the glass finish, producing a redraw elongation of the closure of approximately 0.5 mm (CE.T.I.E Bottling Guide No. 6 2016 / Rev 2 March 2020), while thread rollers form the closure into the bottle-finish thread profile and tuck rollers crimp the skirt under the locking bead.

Stelzer (2005) as cited by AWRI specifies recommended screw-cap removal torque ranges (the twisting force to break the tamper-evident bridges and open the cap) of 1.40 – 2.80 Nm for Auscap, 0.68 – 2.83 Nm for GlobalCap when tested 24 hours after capping (with limits increased by 10% if tested immediately after capping), and 0.90 – 1.81 Nm for Péchiney 30 mm diameter screw caps.

According to ASTM D2063/D2063M-24 Clauses 5.1, 5.2, 5.3, and 1.1, continuous-thread closure torque retention on containers with matching finishes is evaluated under controlled conditions using a non-automated spring torque-meter (dial indicator or digital readout) or torque wrench to measure removal torque for predetermined environmental conditions over time.

The JPACKS JCP-1 Automatic T Cork Placing and Pressing Machine for bar-top / T-shaped corks uses a servo-driven pick-and-place device with electrical cylinder to pick a T-cork from the chute, pre-insert it into the bottle mouth, and press it home, and separately a servo motor drives a high-precision PPU cam manipulator, accommodating bottle heights of 120mm-350mm and bottle diameters of 50mm-150mm at ~ 30 BPM with an explosion-proof electric cabinet.

The JPACKS JAC-40F Automatic Single Head ROPP Capping Machine features a 304 stainless steel welded frame, gear-driven transmission, a 24 inch vibratory cap feeder disc with polyurethane liner, and a 4.5 Cubic feet floor-level stainless hopper with an 8 inch cleated belt (6 inch spacing, 2 inch cleats), operating on 380 Volts, 50/60Hz, 10 Amps electricity and 5 CFM @ 80psi compressed air.

Choosing between a synchronized rinser-filler-closer monoblock and a modular inline line depends on floor space, throughput, and how critical oxygen pickup is between filling and sealing.

The MBF Synchrofill monobloc installed at Gusbourne Estate integrates a rinser, filler, capper, corker, crown capper, and bidule and Vinoloc glass stopper inserters in a single block running at speeds up to 4,500 bottles per hour, using a patented system for minimum nitrogen consumption and speed-independent inert-gas injection into the bottle before filling.

IC Filling Systems supplies Rinser / Filler / Capper Monoblocks with throughputs from 500 to 16,000 bph (including 9-9-1, 20-20-5, 24-24-4, 24-24-6, 32-32-8, and 48-12 turret configurations) combining gravity or isobaric fillers with ROPP cappers, corkers, or T-cork applicators.

In a monoblock bottling system, bottle feeding, filling, cap placement, and capping are integrated into one compact machine with short, controlled bottle transfer and reduced conveyor length, whereas an inline bottling system links independent machines by conveyors for modular customization, individual servicing, and easier line expansion.

Downstream of the primary closer, cork-sealed wine and spirits bottles pass through capsule applicators, heat-shrink or spinning heads, and multi-station pressure-sensitive labelers, where conveyor handoffs follow the rules in our bottle labeling equipment line interface guide.

IC Filling Systems supplies secondary-sealing capsuling machines spanning 500 to 30,000 bottles/hour, including a combi unit combining 3 station labelling with a capsuling top-sealing machine operating at 2,000 bottles per hour.

Gusbourne Estate pairs a Robino & Galandrino Capsulator (which orientates and pre-pleats capsules with a cork and wirehood presence detector) with a three-station PE Labelling machine.

For secondary capsule sealing on ½ litre to 2 litre glass bottles (180 mm min to 360 mm max height) with capsules up to 60 mm max length, IC Filling Systems specifies a thermal heat-shrink head for PVC capsules with temperature regulation (220 V single-phase, 50 Hz, 1,2 Kw, 12kg) and a bench rolling head with adjustable-pressure bronze spindle for multi-R, Al, and tinfoil capsules (220/380 V, 50 Hz, 0,18 Kw, 1400 rpm or 2800 rpm on request, 28 Kg).

Wineries define bottling line sanitation as a 3 log (99.9%) decrease in cell number; a typical regime cleans with a 0.5-2% alkaline/caustic solution (pH>9) for 15-20 minutes, neutralises with a 0.6%-1% citric acid rinse for five minutes, and sterilises stainless steel lines and filler heads with hot water at 80ºC for a minimum of 30 minutes (or steam with valve condensate >80ºC for >20 minutes), while avoiding chlorine-based or scented cleaners to prevent chlorophenol and chloroanisole taints.

On a single wine bottling line, AWRI notes that dry white wines are typically filtered and packaged first, followed by off-dry white wines, dry red wines, and finally sweeter red wine styles before repeating full cleaning and sanitation; during breakdowns, surfaces are spot-sanitised with 70% w/w (80% v/v) ethanol or isopropyl alcohol, and breakdowns >4 hours require re-sanitation consideration.