Jam & Sugar Thermometers Have Gone Digital

Every good baker needs to master working with sugar. Caramels, jams, honeycomb and sweets all require accurate sugar work. To get it right you need to know the exact temperature of your sugar.

Traditional analogue sugar thermometers have been a fixture of the home bakers kitchen drawer for many years but they can be difficult to read, inaccurate and un-hygienic. With a Thermapen you can get a highly accurate digital temperature reading of your jam or sugar in under 3 seconds. Its easy to read, easy to clean and because Thermapens are built for professionals as well as home cooks, they’re built to last.

Invest in a Thermapen today and enjoy years of perfect sugar work!

Jam & Sugar Thermometers 

  • Thermapen ONE Thermometer

    Thermapen® ONE Thermometer.reaches temperature in just 1 second improved 5 year guarantee patented, auto-rotating display FREE traceable calibration certificate waterproof to IP67 auto intelligent cool white backlit display motion-sensing sleep mode easily configure display in °C or °F meets the European Standard EN 13485

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    £67.20 inc VAT in stock
    in stock
  • Thermapen Classic thermometer

    The Thermapen® Classic thermometer is fast, accurate and used by chefs and BBQ enthusiasts worldwide. Versatile for all your cooking needs, use on meat, fish, jam or bread Variety of colours to match your style SuperFast – reaches temperature in just 3 seconds Over 50 % faster than traditional probes FREE traceable certificate of calibration...

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    £48.00 inc VAT in stock
    in stock
  • Special!

    ThermaStick Pocket Thermometers

    ThermaStick® Pocket Thermometersreduced tip for faster response large, easy to read LCD display max/min function waterproof to IP66

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    £21.60 inc VAT in stock
    in stock


Here’s why thousands of professional and home bakers choose Thermapen as their digital jam and sugar thermometer:

⦁ Accurately measures temperature in under 3 seconds making it quick and convenient for time sensitive baking such as caramel
⦁ Patented 360° self-rotating display, can be used in any position, in either hand
⦁ The casing is washable and includes ‘Biomaster’ antimicrobroial technology that reduces bacterial growth
⦁ Motion-sensing sleep mode automatically turns the Thermapen on/off when set down or picked up
⦁ Intelligent backlit display sensing light levels, automatically turning the backlight on/off in varying light conditions (perfect for seeing the screen over a steamy pot)
⦁ Powered by a single AAA battery with a life expectancy of 3000 hours in normal use
⦁ Measures temperature over the range of -49.9 to 299.9 °C
⦁ Also perfect for measuring the temperature of chocolate, meat, sausages, oil, fish, egg dishes, puddings and more

See our blog post on the benefits of digital thermometers vs traditional sugar thermometers.

What temperature do I need my sugar or jam

Check out our guide to the perfect temperatures for jam, sugar and baking work. Your Thermapen manual comes with a useful guide to all the most common temperatures you’ll need in the kitchen so keep it handy!


Bread77 °CRich Dough
Bread88 - 93 °CLean Dough
Water-Temp41 - 46 °Cto add to yeast
Butter2 °CChilled
Butter18 - 19 °CSoftened
Butter29 - 32 °CMelted & Cooled
Sponge Cake95 - 98 °C
Fruit Cake98 - 100 °C
Jam105 °CSetting Point


Thread110 - 112 °CSyrup
Soft Ball112 - 116 °CFondants
Firm Ball118 - 120 °CCaramel
Hard Ball121 - 130 °CDivinity & Nougat
Soft Crack132 - 143 °CTaffy
Hard Crack149 - 154 °CBrittles, Lollipops & Hardtack
Caramel160 - 177 °CFlan & Caramel Cages
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