Reuse of container mix?

[rudylr]

I tried my hand at container gardening this year. I had good success early on then got septoria leafspot and the hot humid weather slowed things down. I'm all in for next year though with probably twice as many plants. Can I reuse my container mix for next year? I am going todo one raised bed and could put the mix in there and use fresh mix in the containers. what's the chance of the S leaf spot causing problems next year?