Winegrowers Supplies - Flash Pasteurisers - for bottling juice, sweet cider or wine etc
These are 'flash pasteurisers' - a short time at high temperature - far superior to 'in bottle' pasteurisers as the flavour is not 'cooked'.
The minimum pasteurising temperature necessary depends on the length of time the apple juice will be held at the temperature. The acidity of the juice and the amount and types of yeast and bacteria present in the juice are other important factors.
When pasteurising apple juice 'in bottle' in a water bath, it is said that the minimum is 72 °C for 20 minutes; the water and bottles being at that temperature. That's a long time to wait.
A flash pasteuriser is normally run at 80 °C (to 82 °C) for apple juice, it is only at that temperature for a few seconds, although the juice is heated progressively for a short time before that, while it travels through the pipe-in-pipe heating coil, also it remains at a high temperature afterwards as it cools down.
To be certain that the pasteurised juice is sterile, a microbiological analysis can be carried out on test samples. Tasting comparisons can also be carried out.
Below are details and prices for a range of pasteurisers that I sell, with 'boilers/heaters' of different power:-
All of these have pipe-in-pipe (coaxial tube) heat exchangers, I don't sell models with Plate heat exchangers as they are very difficult to clean inside after use, and cleaning is extremely important.
The THA-100 (typically 180 litres/hour) has an electric boiler of 18 kWatt power (3-phase, 380 volt). That's about as high as is practical with electricity.
It doesn't matter how many filling heads are fitted, the throughput is limited by the 18 kWatt power. Three filling heads are worthwhile if a pre-heater is to be added, which will increase the throughput.
(250 to 300 litres/hour) has a Propane Gas boiler of 24 kWatt.
4595 Euros, or with option of fully automatic temperature control 1675 Euros extra.
(450 litres/hour) has a Propane Gas boiler of 42.5 kWatt.
6150 Euros, or with option of fully automatic temperature control 1675 Euros extra.
The Diesel-350 (300 to 350 litres/hour) has a Diesel (red diesel or heating oil) boiler of 34.8 kWatt.
5395 Euros, or with option of fully automatic temperature control 2075 Euros extra.
The Diesel-450 (400 to 450 litres/hour) has a Diesel (red diesel or heating oil) boiler of 44.3 kWatt.
6095 Euros, or with option of fully automatic temperature control 2075 Euros extra.
and the following fully automatic models:-
The Niko PK 350/500 RWT (350 to 550 litres/hour) has a Diesel boiler of 30 to 40 kWatt.
The Voran PA 500 RWT-G (500 litres/hour) has a Propane gas boiler of 46 kWatt.
The Voran PA 600 RWT-O (600 litres/hour) has a Diesel boiler of 55 kWatt.
The Niko PK 700/850 RWT (700 to 800 litres/hour) has a Diesel boiler of
50 to 63 kWatt.
The Voran PA 750 RWT-G (750 litres/hour) has a Propane gas boiler of 70 kWatt.
The Niko PK 1100 RWT (850 to 1100 litres/hour) has a Diesel boiler of 80 kWatt.
The Voran PA 1000 RWT-O (1000 litres/hour) has a Diesel boiler of 91 kWatt.
The Voran PA 1500 RWT-G (1500 litres/hour) has a Propane gas boiler of 140 kWatt.
The Voran PA 2000 RWT-O (1000 litres/hour) has a Diesel boiler of 180 kWatt.
The throughput depends on the temperature of the juice entering the pasteuriser; the lower the initial temperature of the juice the longer it will take to heat up. The higher the power the faster the juice is heated, so the higher the maximum throughput.
For anyone without a 3-phase electricity supply, the propane and diesel models are ideal.
The propane gas models are a little more difficult to install than the diesel models, as you need to buy propane gas cylinders and high pressure (10 bar) propane gas tubes to connect them to the regulator on the pasteuriser.
All the propane and diesel models should be connected to a separate bottle
filler or Bag-in-box filler with a small buffer tank; the bottle filler header tank acts as a buffer tank. This enables
the pasteuriser to be run at a constant flow and have a stable temperature.
A small pump is needed to pump juice into the pasteuriser, it then flows through and on into the header/buffer tank.
The following pasteurisers have automatic control of the pasteurising temperature.
They are normally connected to a semi-automatic Bib filler or bottle filler.
Oil fired pasteurisers with tubular spiral heat exchanger, made of stainless
steel. The juice is in the tubular spiral which is located in the hot water of the boiler itself.
This gives huge saving of space and prevents heat loss compared to pumping the boiler water to an external heat exchanger. This reduces energy costs by up to 15%, in effect a lower power boiler is needed to achieve the same throughput.
Automatic water temperature control with digital thermostat.
Automatic regulation or juice temperature, easy setting of juice temperature (filling temperature) on digital display.
Simple, fast cleaning. Suitable for viscous media, virtually maintenance free because there is no seal.
PK 350/550 RWT: 12,752 Euros.
30 - 40 kWatt, 350 - 550 litres/hour, 900 mm x 600 mm x 880 mm hgih, 190 kilos. Oil consumption 2.5 to 3.5 litres/hour.
PK 700/850 RWT: 14,340 Euros
50 - 63 kWatt, 700 - 800 litres/hour, 950 mm x 700 mm x 980 mm high, 230 kilos. Oil consumption 4.5 to 6.5 litres/hour.
PK 1100 RWT: 17,395 Euros
80 kWatt, 850 - 1100 litres/hour, 1500 mm x 700 mm x 980 mm high, 285 kilos. Oil consumption 6.5 to 10.0 litres/hour.
An exhaust flue is required: single wall, 150 mm or 170 mm diameter, horizontally from the rear of the pasteuriser.
A diesel oil tank of at least 20 litres is required. It should be outside of the production room. From the tank to burner there are two pipes, feed and return of the diesel oil; there is a diesel oil pump on the pasteuriser.
Hose and electrical connections between Niko pasteuriser and a Niko bib-filler, 150 Euros
The following six models have 'tubular' (pipe in pipe) heat exchangers, with automatic temperature control.
The new temperature control on the Voran pasteurisers works really well.
PA 500 RWT-G: Propane gas powered: 15,900 Euros
up to 500 litres per hour according to the ambient juice temperature.
46 kWatt heating energy, 1.1 kWatt 230 volts,
PA 600 RWT-O: Oil powered: 15,900 Euros
up to 600 litres per hour according to the ambient juice temperature.
PA 750 RWT-G: Propane gas powered: 17,950 Euros
up to 750 litres per hour according to the ambient juice temperature.
PA 1000 RWT-O: Oil powered: 20,950 Euros
up to 1000 litres per hour according to the ambient juice temperature.
PA 1500 RWT-G: Propane gas powered: 24,950 Euros
a version using natural gas is available at the same price.
up to 1500 litres per hour according to the ambient juice temperature.
140 kWatt heating energy, 1.8 kWatt 230 volts,
It's necessary to connect 3 x 33 kilo or larger Propane gas cylinders or a large fixed tank.
The gas pressure-regulator on the PA 1500 has only one inlet pipe.
Photo of a PA 1500 RWT-G connected via a 230 litre buffer tank to a Semi-automatic Bag-in-box filler:-
The buffer tank is connected to the pasteuriser outlet and onwards to the Bib filler.
The complete line can be Cleaned In Place (CIP). The buffer tank can be used as cleaning tank to prepare the cleaning solutions.
Note: advice in the Burner manual - every 6 months the burner should be serviced. Before first use the burner 'air supply valve' has to be adjusted according to the type of gas that will be used. If the air supply is not sufficient, ash sediments begin to form on the walls of burning chamber and after some time the burner starts to work less and less efficiently.
PA 2000 RWT-O: Oil powered: 27,600 Euros
up to 2000 litres per hour according to the ambient juice temperature.
Sturdy stainless steel frame with a heating module, hot water pump (electric control), coaxial tube heat exchangers. Has a juice pump but without bottling facility. They are relatively more expensive than Voran:-
about 400 litres/hour at 80°C; up to 500 litres/hour according to the ambient juice temperature (pre-heating the juice would increase this substantially, as described above).
48 kWatt heating energy; uses heating oil at about 4.5 litres/hour. 2.2 kWatt electrics, 1000 mm x 1000 mm x 1200 mm high.
about 600 litres/hour at 80°C; up to 700 litres/hour according to the ambient juice temperature.
66 kWatt heating energy: uses heating oil at about 6.0 litres/hour. 5 kWatt electrics, 1200 mm x 1000 mm x 1400 mm high.
about 1200 litres/hour at 80°C; up to 1400 litres/hour according to the ambient juice temperature.
132 kWatt heating energy: uses heating oil at about 12.0 litres/hour. 7.5 kWatt electrics, 2200 mm x 1250 mm x 2200 mm high.
Kreuzmayr KPA Series:-
Automatic juice and water temperature control, easy to adjust via the digital display
and juice outlet control valve to regulate the flow of juice. Self-priming juice
pump. Tube-in-tube heat exchanger for efficiency and ease of cleaning.
Wolf brand high efficiency boilers, constructed in Germany, either liquefied petroleum gas or diesel oil models.
KPA 500: Oil: 44 kWatt or Gas 41 kWatt, 450 kilos
KPA 750: Oil: 63 kWatt or Gas 63 kWatt, 540 kilos
KPA 1000: Oil: 90 kWatt or Gas 90 kWatt, 620 kilos
KPA 1500: Oil: 120 kWatt or Gas 140 kWatt, 1100 kilos
KPA 2000: Oil: 160 kWatt or Gas 160 kWatt, 1200 kilos
Prices shown are exclusive of Vat.
Delivery usually will need to be charged at cost.