Glossary

Dummy Plug

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  • Base Value
    • This is a parameter used in PU calculation.
    • See our Science pages for a detailed explanation.
  • Beer Bug
    • An alternative name for a PU Monitor.
  • Clamp
    • The clamp is the metal part of the rubber bottle top. It allows a good seal to be formed around the neck of the bottle.
  • Cold-spot
    • This refers to the coldest point in the package and is most often used as the PU pick-up point.
    • See our Science pages for a detailed explanation.
  • Cutoff
    • Short for Cutoff temperature and used in PU calculations. At or above this temperature PUs are accumulated. Below this temperature they are not.
    • See our Science pages for a detailed explanation.
  • Dome Height
    • The depth of the recess under the bottom of the can. Useful when calculating your probe lengths.
  • Dummy Plug
  • Exit Temperature
    • The temperature of the product as it leaves the Tunnel pasteuriser.
    • See our Science pages for a detailed explanation.
  • FDU
    • Flavour Degradation Unit
    • See TDU.
  • Flash Pasteurisation
    • Inline pasteurisation using high heat for a short time period.
    • See our Science pages for a detailed explanation.
    • Used in conjunction with Sterile Fill.
  • Frame
    • The metal 'basket' that protects the PU monitor and package under test during the run through the pasteuriser.
  • K-Plug
    • A key plug that allows access to the settings of a PU Monitor.
    • See our Product pages for more information.
  • Lethal PU
    • Some brewers use two PU cutoffs; a Non-lethal PU and a Lethal-PU, this is because of the resistance of some microorganisms to lower temperatures.
    • See our Science pages for a detailed explanation.
  • P-Plug
    • This plug was used as a dummy pressure channel plug on RPT-122 units.
  • PU
    • Pasteurisation Unit
    • See our Science pages for a detailed explanation.
  • PU Monitor
    • A temperature and/or pressure logger, that travels through a pasteuriser and can calculate the PUs of a sample container.
    • See our Science pages for a detailed explanation.
  • PU Pick-up
    • This can refer to a graph produced by pasteuriser control software that shows the rate of PU accumulation during the run of the pasteuriser.
  • PU Pick-up point
    • This refers to the location within the package where the temperature used in calculating PUs is being measured.
    • See our Science pages for a detailed explanation.
  • Package
    • The product container usually a bottle or can.
  • Panel Offset
    • The depth of the recess surrounding the ringpull on a can. i.e. countersink depth minus Panel height. Useful when calculating your probe lengths.
    • This term was invented by Redpost as there seems to be no industry term used to describe this dimension.
  • Pasteurisation
    • A process of taking a beverage or food stuff to an elevated temperature for a specific period of time in order to kill the majority of microorganisms that would otherwise reduce a product's shelf life.
  • Pasteurization
  • Plate Pasteurisation
  • Product
    • The liquid inside the package being pasteurised i.e. Beer, Mineral Water, Fruit Juice.
  • Product Stability
    • Product stability is achieved when sufficient microorganisms have been killed to guarantee the required product shelf life.
  • Punt
  • Push-Up
    • The depth of the recess under the bottom of the bottle. Useful when calculating your probe lengths.
  • Quick-Change
    • This addition to a PU Monitor frame allows bottle holders and can fittings to be changed much quicker than normal.
  • Quick-Nuts
    • These replace the standard wing-nuts on can fittings to allow faster turnaround when replacing a can.
  • RPC
    • Redpost Printer Charger
    • This is the desktop unit that charges the Redpost monitor and either transfers data to a PC or prints reports directly(e.g. RPC-50 or RPC-80).
  • RPT
    • Redpost Pressure and Temperature
    • Older Redpost monitors with a pressure channel were referred to as RPTs instead of the now standard RPU. (e.g. RPT-122 or RPT-243).
  • RPU
    • Redpost PU monitor
    • This refers to the monitor unit that travels through the pasteuriser recording the number of PUs accumulated and/or the pressure of the product under test (e.g. RPU-352).
  • Redlink
    • Software produced by Redpost to connect an RPC-80 or RPC-50 to a Redpost PU Monitor.
  • Sterile Fill
    • The process of filling pre-sterilised bottles in a sterile environment with sterile product. Often used in conjunction with a Flash Pasteuriser.
    • See our Science pages for a detailed explanation.
    • Used in conjunction with Flash Pasteurisation or Sterile Filtration.
  • Sterile Filtration
    • An alternative to pasteurisation that uses advanced filters to remove microbiological contamination.
    • Used in conjunction with Sterile Fill.
  • T-Plug
    • A dummy plug that disables a temperature channel of a multi-channel PU monitor.
    • See our Product pages for more information.
  • TDU
    • Thermal Degradation Unit
    • Sometimes called Taste Degradation Units.
    • See our Science pages for a detailed explanation.
  • TIU
    • Thermal Impact Unit
    • See TDU.
  • Test Plug
    • A plug that emulates a temperature probe at a fixed temperature.
    • See our Product pages for more information.
  • Thermograph
    • Seldom used nowadays, a chart recorder which can be used to assist PU calculation. Sometimes used to refer to a PU Monitor.
  • Travelling Recorder
    • Sometimes used to refer to a PU Monitor.
  • Z Value
    • This is a parameter used in PU calculation.
    • See our Science pages for a detailed explanation.