Some helpful tips.
- heat juice to 160F for 10 minutes, then cool to 65-70f.
- use msall amount of chloine bleach or iodine based sanitizer
- Clean and sanitize everything that comes into contact with the juice solution. Spoons, bottles, anything.
- You can use a tiny amount, a couple drops, of bleach to clean bottles. let them soak a couple hours. rinse with clean water and cover bottles. clean and sanitize caps too.
- or steam sanitize bottles
- Make sure your hands are clean too.
- keep open air access to juice, bottles, yeast, etc to an absolute minimum
These are some basic things for beer brewing too