The site is free: use it, print the sheets, teach from the guides. Don't repost the site as your own; finished work is yours to sell.
Cultured Bench is craft guidance, not a food-safety authority for your kitchen. When in doubt, follow your local food-safety guidance and your own nose — ferments are alive, tools have parts, and heat guns get hot. Young makers get supervision.
Cellar TV embeds creators' videos under their standard embeds; rights stay with the channels; takedowns honored.