How it works
Reduction works by gently simmering a liquid, such as stock, wine, or a sauce base, to evaporate water and concentrate the remaining flavours. The key is to maintain a steady, gentle simmer rather than a rolling boil, which can cause uneven cooking and risk burning. As the volume decreases, the flavours intensify and the texture thickens naturally due to the concentration of solids and sugars. To set up for a successful reduction, use a wide, shallow pan to increase the surface area and speed up evaporation. Keep the heat moderate and stir occasionally to prevent sticking or scorching, especially if the liquid contains sugars or dairy. Patience is crucial: rushing the process with high heat can ruin the flavour and texture. Throughout the reduction, taste frequently to monitor flavour development. Adjust seasoning, particularly salt and acid, near the end of the process to avoid over-concentration. The goal is a balanced, glossy sauce or glaze that clings well and enhances the dish without overpowering it. With practice, you will learn to recognise the perfect consistency and flavour intensity.
Best for
- Concentrating flavour in stocks and sauces
- Thickening sauces without flour or starch
- Preparing glazes for meats and vegetables
- Enhancing the richness of braising liquids
- Finishing reductions for dressings and marinades
Common mistakes
- Reducing too fast and scorching sugars or dairy
- Over-salting early and concentrating saltiness
- Not tasting regularly and missing the ideal endpoint
- Using too small a pan and slowing evaporation
- Boiling vigorously instead of simmering gently