Two of the best major brands of bubble gum for blowing the biggest bubbles are Double Bubble and Bazooka. Surprisingly, these less popular brands of bubble gum blow the biggest bubbles.
In order to blow the biggest bubbles, it is important to pick a brand of gum that has a lower sugar content because gum with less sugar forms stronger bubbles. Even with a low-sugar gum, remove the sugar in the gum by first chewing the gum and then holding it under warm water to remove the rest of the sugar. In addition, blowing gum indoors will produce bigger bubbles than blowing gum outside.