TheRoasters are always looking for ways to keep costs down. We don't add any margin to postage costs.
Postage costs per kilogram are cheaper when purchasing 2, 3, or 4 kilograms. Some of our customers pool their orders (two neighbours, or a few colleagues for example) and find that the postage costs are quite efficient that way.
Postage costs are added at checkout. We could offer "free shipping", however we believe this is being less transparent and hence the postage cost is made visible at checkout for your benefit.