Certo pectin has been around for just over 100 years. According to the Heathy Canning site, it was first advertised in 1921.
1922 Certo Advertisement
Certo pectin has been around for just over 100 years. According to the Heathy Canning site, it was first advertised in 1921.
A Hundred Years Ago 
And even the inexperienced can use it.
I don’t remember the name Certo, but ‘Surejell’ always was around the kitchens of my mom and her friends.
I have Surejell always on hand! The strawberries were 99 cents a pound and I was able to make jam without having to scramble… and it is 100% true – it works!
Oooh, I remember Certo! I wonder if it still exists?
I’ve use certo,it work out for me, now I use Surejell. The little boxes are nice to keep on hand.