Why heat is such a problem
Chocolate begins to soften at temperatures well below those inside a delivery vehicle on a summer afternoon. The issue is not simply that it melts — it is what happens when it re-sets. As the cocoa butter separates and migrates to the surface, it recrystallises unevenly, leaving pale, streaky or grainy patches across the surface. This is chocolate bloom: the flavour remains largely intact, but the texture turns sandy and the visual appeal is gone.
Good chocolate is tempered through controlled heating and cooling that aligns cocoa butter crystals into a stable, glossy structure. One warm transit can undo that work entirely. For a small maker who has spent time crafting a ganache or a single-origin bar, that matters.
What small makers do — and why
Many independent chocolate makers pause postal dispatch during the hottest weeks of summer. This is straightforward good practice: they know their product well enough not to send it out in conditions that will ruin it. A chocolatier who tells you dispatch resumes when the weather cools is protecting your order, not neglecting it.
In milder spells, reputable small producers take the transit question seriously. Insulated liners, cold packs and carefully timed dispatch are all part of how a well-run chocolate business approaches warm-weather shipping. If you are unsure what a particular maker does, ask before you order — the answer will tell you a great deal about how seriously they take their craft.
Practical steps when ordering
Timing is the single most effective thing you can do. Order early in the week — Monday or Tuesday — so the parcel moves through the network quickly and does not sit in a depot over a weekend when temperatures can build inside a warehouse or van.
- Choose a next-day delivery service rather than standard or economy options, which can leave a parcel in limbo for two or three days.
- Ask the sender whether they use insulated packaging or ice packs — a good maker will have a clear answer.
- Give a delivery address where someone will be in, or where the parcel can be left somewhere shaded rather than on a south-facing doorstep in full sun.
If you are sending chocolate as a gift, the same principles apply. See our guide to posting food gifts for more on choosing services and packaging materials.
What to do if it arrives soft
Even with the best precautions, a parcel can arrive having softened in transit. Do not put it straight into the freezer — the rapid temperature change causes condensation inside the packaging, which can introduce moisture that permanently affects texture.
Move it somewhere cool and let it come down gradually. A fridge works, provided the chocolate is well wrapped to protect it from absorbing other flavours and from condensation when you bring it back to room temperature. If bloom has set in, the chocolate is still edible — the flavour is largely intact — but the texture will differ noticeably from how it left the maker.
Contact the sender if something arrives badly affected. A maker who cares about their product will want to know.
The bigger picture
Summer is genuinely difficult for postal chocolate, and no packaging solution makes a sealed van in July behave like a temperature-controlled storage room. The independent makers who handle this best are honest about the limitations, invest in proper materials when they do dispatch, and pause rather than send out something they would be unhappy with themselves.
Plan ahead, choose your service carefully, and if a maker you trust says they are not posting until the weather cools, place your order now for dispatch when conditions improve.
