Shipping for the 2027/28 cold season
Heatpost 40 keeps a poly box warm for 40 hours. Every production batch goes on the test plate in Leeds before a single pack ships, and the result is printed on the bag.
Surface temperature on a 20 °C test plate, JIS S 4100 method
Line chart of pack surface temperature over 48 hours. It reaches 40 degrees in about 18 minutes, holds an average of about 50 degrees, and stays above 40 degrees for more than 40 hours before falling.
Ten packs from every batch are logged for 48 hours on the plate and 40 hours in a cold poly box before the batch goes on sale.
Batch number and manufacture date printed on the outer bag, with a 36-month shelf life behind it. No mystery stock.
If a Heatpost pack fails to heat, tell us the batch number and we replace it. No forms, no argument.
Coral and fish shops, reptile and invertebrate breeders, houseplant nurseries, feeder-insect suppliers, and anyone whose product must not arrive cold. Cartons of 100 that stay under 10 kg, pre-packed in 10s and 25s so you can label and go.