A cake that holds is invisible. The client expected it, it's there, impeccable — that's normal.
A cake that melts is memorable. For the wrong reasons. The client remembers it. They talk about it. Sometimes they photograph it.
In summer, the difference between these two scenarios has nothing to do with your skill level. It comes down to one choice: your coating.
Buttercream softens. That's its nature. Above 22°C — a common temperature in a reception venue in summer, under spotlights, with dozens of people — it no longer holds.
It slides. It sweats. Edges round off, sharp angles disappear, decorations shift.
Your client doesn't know why it happened. They just know the cake no longer looks like what they ordered. And it's your name they associate with that memory.
Ganache resists ambient heat because its structure is based on cocoa butter — a fat that crystallises as it cools and holds well beyond what buttercream can withstand.
A correctly prepared ganache definitely stays firm above 22-24°C. It maintains clean edges, smooth surfaces, sharp angles. It withstands transport, handling, the two hours between delivery and cutting.
What you created arrives intact. That's all the client sees — and that's all that matters for your reputation.
For simple finishes — clean smoothing, palette knife textures, minimal decoration — ganache alone is the final coating. Clean, stable, professional.
For elaborate decorations — sugar flowers, relief work, tiered cakes — fondant remains essential. But it needs a firm base to hold. Ganache gives it that base. Buttercream, more so in summer, does not.
In both cases, ganache is what ensures your work arrives the way you designed it.
You don't control the weather. You don't control the temperature of the venue. You don't control what happens after you leave.
What you control is what you put on that cake before you deliver it.
That choice is technical. But its consequences are commercial — and reputational.
The preparation and application of ganache coating are part of the fundamentals taught in the Sweet Design Academy Les Fondations course.
→ [Discover The Foundations course]
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