5 Day Liver Cleanse

I just started the 5 day liver cleanse, in the booklet that I have, it says to drink Fruit and Veggie jucies, can these be store bought organic juices or does everything need to be juiced using a juicer?

Also, when making the tea, are you supposed to strain it all at the first use in the morning then re-heat or are you supposed to strain as you go?

Thank you in advance,
Jon Tweet