Ingredients
16 potatoes. (The best potatoes to use are Desirée, since they maintain their shape, but Maris Piper and King Edward are also suitable).
2 tbsp. plain flour
140g goose or duck fat, or dripping
3 tbsp. vegetable or sunflower oil

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Method
1 Heat the oven to 190C/fan170C/gas mark 5. Peel and cut the potatoes in half; if large, cut into quarters, or keep whole if small. Put in a saucepan and pour cold water over, and then let them reach boiling point. Set a timer and boil them for two minutes. Drain the potatoes – then toss in a colander to make their surfaces fluffy, sprinkling flour over.

2 Place a sturdy, large roasting tin above a fairly high heat – then pour in the oil and fat. When it sizzles, carefully lower the potatoes in – then gently brown the potatoes for roughly five minutes to ensure that all the surface area is covered with oil.

3 Roast without intervening for 20 minutes – then take them out of the oven and carefully flip them over, using a fish slice. Put the tray on top of the hob to heat the fat – then put them back in the oven and cook for an additional 20 minutes. Turn them again, once more placing the tray on the hob to heat the oil. Allow a final 20 minutes in the oven, and by now you should have ideal roast potatoes!

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You may choose a Lincat OCMPC61 Opus electric combi oven from a supplier such as https://www.247cateringsupplies.co.uk/lincat-ocmpc61-opus-combi-oven and treat your kitchen!

For more potato recipes see: https://www.lovepotatoes.co.uk/recipes/.

Potato varieties
Use the following for the best results.

Desiree
Desiree potatoes have creamy, firm flesh which is ideal for mash or a sauce for Dauphinoise Potatoes. Desiree are distinguished by their attractive red skin and pale yellow flesh.

Maris Piper
Since the ‘60s, Maris Piper has been a popular choice; more of these are harvested than any other type in the UK. The Maris Piper has creamy, fluffy flesh, and a golden skin. It is a superb all-rounder, great for wedges, chips and mash.

King Edward
King Edward potatoes are easy to find in retailers. They have cream-coloured skin with pale red blushes. With their light flesh, these potatoes are fluffy when cooked. Try delicious baked potatoes or oven-baked chips.

Reliable refrigeration is important for many industries, including catering, floristry and scientific research. Keeping food, flowers or chemicals at a stable low temperature prolongs their life and ensures they are safe and suitable to use.

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The Food Standards Agency highlights the importance of adequate and reliable refrigeration in order to keep food safe, so it is well worth spending some time researching the most appropriate unit for your purpose.

In order to maintain a steady temperature, good insulation in a cold room is essential and makes a large difference to efficiency and, therefore, running costs. Good insulation also reduces how hard fridge components have to work which increases their life expectancy and reduces maintenance.

What is an R-value?

An R-value, also known as an R-factor, measures the quality of a fridge’s insulation. The value is determined by how well a material resists the flow of heat. The R-value can change depending on the type of foam used in the insulation and also how old the foam is.

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Why should you consider the R-value?

When choosing commercial cold rooms, such as those found at www.fridgefreezerdirect.co.uk/cold-rooms/integrated-cold-rooms, R-values should be an important consideration. A typical R-value for a walk-in cold room is around 25, however, many manufacturers have developed rooms with considerably higher R-values, thanks to the types and thicknesses of the foam used.

A high R-value means that your cold room will have a better ability to keep out ambient heat. This means your unit will not have to work as hard to maintain a low temperature, which can extend the life of your compressor and also lower your running costs.

Changes in R-value

The R-value of a unit can change over time as the insulation ages, so it is important to consider a long-term projection, rather than just the R-value at purchase. Projected R-values can differ according to the mean operating temperature of your cold room, so you should think about what temperature your fridge is going to be kept at. Lower temperature requirements may mean a different type of insulation would be better.

There are many technical and practical specifications to consider when selecting the most suitable cold room, but researching R-values could save you a considerable amount of money in running and maintenance costs over the long term.