Product Education
Mirror Glaze Guide: What It Is and How to Use It
Short answer
Warm neutral mirror glaze to 32–35 °C (90–95 °F), pour it over a fully frozen entremets in one continuous motion, and let the excess run off. Count on roughly 400–600 g of glaze per 18 cm cake, of which about half stays on the cake. Bubbles come from stirring air in; streaks come from a glaze that is too cool or a cake that isn't cold enough.
Table of contents
What mirror glaze actually is
A mirror glaze is a gelled sugar syrup — sugar, glucose, water, a gelling agent and usually condensed milk or white chocolate — designed to set into a thin, glossy, non-sticky film over a frozen surface. It is finishing, not flavour: its job is shine and protection.
Ready-made neutral glazes save you the syrup work and, more importantly, give you the same result every week. In a production kitchen that repeatability is worth more than the small cost difference against making it from scratch.
The three rules that decide the result
1. Temperature: 32–35 °C
Too hot and the glaze runs thin and translucent, showing the mousse underneath. Too cool and it drags, sets in ridges, and leaves a thick opaque skin. Use a thermometer every time — this is not a step you can eyeball.
2. The cake must be frozen solid
Glaze sets by shock-chilling against a frozen surface. A merely cold cake gives you streaks, slides and a wet finish. Freeze entremets at −18 °C for at least four hours, ideally overnight, and glaze straight from the freezer.
3. No air
Every bubble you stir in will surface on the finished cake. Blend with the stick blender head fully submerged and tilted, never lifted, then pass through a fine sieve and rest the glaze so remaining bubbles rise before you pour.
If you only fix one thing, fix the temperature. It causes more failed glazes than the other two combined.
The working method
Follow along
0/9 doneHow much glaze per cake
The excess isn't wasted. Strain the runoff, store it sealed and chilled, and reuse it within the manufacturer's window — most kitchens fold it into the next batch rather than keeping it separate.
Fixing the five common faults
Beyond entremets
Neutral glaze earns its shelf space outside mousse cakes too: brushed over fruit tarts it stops the fruit drying and doubles the display life; thinned slightly, it gives cheesecakes and tart surfaces a professional finish; and it seals cut fruit on plated desserts.
For those uses, work slightly cooler and apply with a brush rather than pouring — you want a film, not a coat.
Frequently asked questions
Written by
Crave Bake Supply Team
We supply professional European baking ingredients to bakeries, pastry shops and home bakers from our Miami warehouse. Our guides come from the questions our customers ask us every week. Ask us anything.
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