- Heat can be used as a control against surfaces or niches that are suspected of harbouring L. monocytogenes. Especially in older equipment which are difficult to disassemble.
- For small pieces of equipment, submersion in a hot (>80°C) water bath with detergent will likely be effective. Larger equipment which is water sensitive may be heat treated in an oven.
- For equipment which is too large for an oven, a treatment may be to cover with a tarpaulin, protect/remove any electronic components, and treating with steam.
- Alternatives may be to treat with ozone or UV-C, although their effectiveness will need to be validated by surface material.