Hot water is not required. If it will help to maintain household tranquility a drum/bucket big enough with a strong solution of bleach will do the job. I'd let them soak for an hour or over night. -·- JohnCleanin startin trays will be my first job. I think the bath tub will be the best place for this. They could be some resistance but it will happen. Very hot water and bleach to disinfect the trays.
Hot water is not required. If it will help to maintain household tranquility a drum/bucket big enough with a strong solution of bleach will do the job. I'd let them soak for an hour or over night. -·- John
I had some issuses last year with some seedlings that may have had some type of disease. I leave my seedlings in the trays till i put them in the garden so I harden them off out side. And thir gust so close together its a breadin ground nasty stuff.im just curious as to why. seems to me it had dirt in it last year, will have the same this year. any minor residue has thoroughly dried. i cant see any bacteria issue remaining.
Dried soil can contain viable viruses, bacterial spores and fungal spores. Might be a problem for you. Might not.
Some plastics degrade with prolonged exposure to 5-6% bleach. The warmer the temperature, the more intense the chemical reactivity. A mixture of half water: half standard bleach seems to work well without immersion. First wash away the dirt, then you can just spray the surface with the dilute bleach to completely wet it, let it rest for 15 minutes, then rinse away thoroughly. [Some cheapo laundry bleach is already 1/2 strength. Full strength is 5 to 6% sodium hypochlorite.]
Walmart sells a really cheap cleaning product in a spray bottle. It's called Great Value "All Purpose Cleaner with Bleach," and is 2% bleach. It will kill viruses, fungi and bacteria, both vegetative and spore-form. Be sure to rinse it thoroughly after use.
Sound like a good plan thanks for the input.I agree with Bob's method. After thoroughly cleaning the trays, spraying them with bleach and let it rest for about 15 min should do the job. I would not fill a bathtub or container with bleach, and then let the trays soak. Once a tray is thoroughly cleaned and dried, it does not take much time to sterilize it by spraying with bleach. Just be sure to thoroughly rinse away the bleach with plenty of water.