Does anyone know if most wine is shipped temp controlled? I've witnessed wine losing all of it's fruit in like two days of heat (over 30'C) in the house, since then we own a wine fridge but I'm still hesitant to buy wine after a hot spell....
I don't know about direct sales within the US, but vanishingly little wine is shipped temp controlled internationally because of price and volume. It can be done, but usually on a small scale. Shipping palletised deliveries either deep-sea or via road, will often be done with something like this product: https://hillebrand.com/docs/default-source/documents/hillebrand-insulation-liner-benefits.pdf . Which can be used either wrapped around individual pallets, or to insulate the inside of a container.