Do
- Chill sponges fully before assembling; warm sponge melts cream and encourages bacterial growth in the middle layers.
- Assemble and decorate in the coolest part of the bakery, working in short bursts, and return cakes to the fridge between stages.
- Store finished cakes in boxes or covered, away from raw eggs, meat and strong-smelling foods.
- Use a closed pastry showcase for display, and keep doors shut between customers.
- Freeze plain sponge layers wrapped airtight; thaw them in the fridge, still wrapped, to prevent condensation on the surface.
- Label each cake with the date of assembly.
- Advise customers to keep cakes chilled and to collect them close to the event in summer.
Avoid
- Do not display cream cakes in open-fronted cabinets in a hot shop.
- Do not place cakes directly in front of the cabinet's cold-air outlet; the surface dries and cracks.
- Do not reuse unsold cream from piping bags.
- Do not stack boxed cakes on top of each other in the fridge.
- Do not refreeze sponges that have been thawed.
In Indian conditions
Birthday and celebration cakes are a large part of Indian bakery sales, and many are collected by customers who then travel in heat. In summer, fresh-cream cakes can begin to soften within minutes outside the fridge. Many Indian bakeries use non-dairy whipping cream partly because it is more stable in heat, but it still needs refrigeration. A properly designed pastry showcase, with cooling around the cake and not just under it, keeps cakes stable and presentable. During power cuts, keep showcase doors closed and move high-value cakes to a reach-in if the outage is likely to be long.
General good practice for commercial kitchens and shops. Where your FSSAI licence conditions or food-safety plan set stricter limits, follow those.