Yes. Our capsules have been carefully designed with shipping conditions in mind, and they are able to withstand temperatures in excess of 120 degrees Fahrenheit, as well as temperatures well below freezing. That said, we urge you to place your order so that you are in town and able to retrieve the package from the outside. We cannot guarantee the viability of our products if they are left outdoors at your home for more than 48 hours, and are unable to offer refunds in the event that this occurs. If you would like to delay the shipment of your order so that you are not out of town when it arrives, we are happy to do so - just send us an email at firstname.lastname@example.org.