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Thermometer Calibration Spanner

£2.22

£1.85 excl. VAT

A handy little tool to calibrate your milk thermometer.

The importance of Calibration

Milk thermometers can be fragile. If they get banged or dropped they may go out of calibration. Handle them with care. Never put them in the dishwasher.

Once a week, check that they are still operating efficiently. Any thermometer that you can not calibrate should be discarded and replaced. It is important to check that they are accurate at both high and low temperatures.

High Temperature Check

You will need:

  • An empty milk jug
  • The milk thermometer
  • The thermometer calibration spanner

Method:

  1. Half fill the jug with hot water from the coffee machine.
  2. Put all the milk thermometers into the jug in their clips so that the bottom 2” is submerged in the water but not touching the base of the jug. Wait at least 30 seconds or until indicator stops moving (If all the milk thermometers are giving the same reading it is a good indicator that they are working).
  3. If any thermometers do not give the same reading, remove the it from the hot water
  4. Look behind the dial head of the thermometer and you will see a nut
  5. To correct the reading grasp the nut firmly with the spanner
  6. Turn the dial in the appropriate direction while holding the nut still
  7. Re check the calibration as in step 1 to 3.

Cold Temperature Check

You will need:

  • An empty milk jug
  • Ice Cubes
  • Cold water
  • The thermometer spanner from the Barista kit

Method:

  1. Fill the jug with ice. Add clean cold tap water until the jug is full and stir well. 
  2. Put all the milk thermometers into the jug in their clips so that the bottom 2” is submerged in the water but not touching the base of the jug. Wait at least 30 seconds or until indicator stops moving (If all the milk thermometers are giving the same reading it is a good indicator that they are working).
  3. If any thermometers do not give the same reading, look behind the dial head of the thermometer and you will see a nut. To correct the reading grasp the nut firmly with the spanner, turn the dial in the appropriate direction while holding the nut still. Keep the bottom 2” of the probe in the iced water.
  4. Re check the calibration as in step 1 to 2.

Next working day delivery on all orders and free shipping over £25!*

We deliver to:

  • United Kingdom Mainland
  • United Kingdom Scottish Highlands

We do not deliver to Ireland, Northern Ireland, Offshore Islands, Channel Islands and Isle of Wight.

For additional information, please see Delivery Information.

*Mon-Fri, order by 3 p.m. Next working day delivery excludes Jura machines and equipment for which we offer a 2-day delivery