We don't test cleaning agents or recommend specific products (or stores), but suggest you avoid using bleach as it could corrode the metal, making the tool harder to clean in the future due to the microscopic pits that may form. Instead, try either a non-bleach disinfectant wipe or rubbing alcohol after soil has been rinsed off. We don't have experience using hydrogen peroxide, though it has been used as a sterilizing aid for other nursery grower purposes, such as cleaning greenhouse benches, floors, and potentially empty (plastic) pots.

It's usually not critical to get a tool completely sterile, as many plant diseases aren't successfully transmitted from one plant to another on contaminated tools (most vectors are insects feeding on the plant, like aphids and leafhoppers, or mites). It's not impossible to do so, but generally there are not enough infectious spores or viral particles on a tool, if used clean (not sterile, just wiped clean of soil and sap), to begin a new infection.

Miri

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