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In an attempt to back up the WHO's claim but not using their data or statement. The 'Corona 2019' virus is a specific variant of the more general corona virus family. Further, this family is part of a broader a family of viruses are known as enveloped viruses, usually composed of lipids and proteins, and are required for a virus to be infectious to a host cell:

In an attempt to back up the WHO's claim but not using their data or statement. The 'Corona 2019' virus is a specific variant of the more general corona virus family. Further, this family is part of a broader family of viruses known as enveloped viruses, with envelops usually composed of lipids and proteins, and are required for a virus to be infectious to a host cell:

In an attempt to back up the WHO's claim but not using their data or statement. The 'Corona 2019' virus is a specific variant of the more general corona virus family. The family of viruses are known as enveloped viruses, usually composed of lipids and proteins, and are required for a virus to be infectious to a host cell:

In an attempt to back up the WHO's claim but not using their data or statement. The 'Corona 2019' virus is a specific variant of the more general corona virus family. Further, this family is part of a broader a family of viruses are known as enveloped viruses, usually composed of lipids and proteins, and are required for a virus to be infectious to a host cell:

Enveloped viruses are easier to disarm since the envelop itself is easily destroyed by drying out, alcohol exposure, and temperature, which can denature the lipid layer and proteins. Studies have been shown that regular drying from air can drastically impact the non-host lifetime of enveloped viruses:

Non-enveloped viruses, such as coxsackieviruses, rotavirus, or poliovirus, can survive for extended periods on surfaces (9, 10), while enveloped viruses, including H1N1 and human coronaviruses, remain infectious on surfaces after several days

Enveloped viruses were more sensitive than non-enveloped viruses in the second phase of viral persistence, which started when liquid was no longer observed on the lids; H1N1 and HSV-1 were inactivated in 5 d and 3 d, whereas [non-enveloped viruses] CVB4 was inactivated in 6 weeks and MVM continued to be infectious.

Our findings suggest they are not hospitable environments for enveloped viruses. Source: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0027932

While it isn't stated explicitly for most of that study (a small mention at the end), the viability of the virus stated is functionally because the H1N1 is also an enveloped virus. Technically it comes down to what your view of what is "safe." However, by research of general enveloped viruses, and there has been no evidence that the 2019 corona virus is any different, a virus is unlikely to be infectious after a short period of time in an uncontrolled environment both from drying as well as temperature changes. Statistically it is possible, but such a small chance that it is unlikely to be of any legitimate cause for concern, especially compared to directly infectious individuals and the like.

Enveloped viruses are easier to disarm since the envelop itself is easily destroyed by drying out, alcohol exposure, and temperature, which can denature the lipid layer and proteins. Studies have shown that regular drying from air can drastically impact the non-host lifetime of enveloped viruses:

Non-enveloped viruses, such as coxsackieviruses, rotavirus, or poliovirus, can survive for extended periods on surfaces (9, 10), while enveloped viruses, including H1N1 and human coronaviruses, remain infectious on surfaces after several days

Enveloped viruses were more sensitive than non-enveloped viruses in the second phase of viral persistence, which started when liquid was no longer observed on the lids; H1N1 and HSV-1 were inactivated in 5 d and 3 d, whereas [non-enveloped viruses] CVB4 was inactivated in 6 weeks and MVM continued to be infectious.

Source: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0027932

While it isn't stated explicitly for most of that study (only a small mention at the end), the viability of the virus stated is functionally because the H1N1 is also an enveloped virus.

Technically it comes down to what your view of what is "safe." However, by research of general enveloped viruses, and there has been no evidence that the 2019 corona virus is any different, an enveloped virus is unlikely to be infectious after a short period of time in an uncontrolled environment both from drying as well as temperature changes. Packages and other shipments would certainly count as an inhospitable uncontrolled environment for enveloped viruses. Statistically it is possible, but such a small chance that it is unlikely to be of any legitimate cause for concern, especially compared to directly infectious individuals and the like.