Yeast starter Questions

[Grinch]

Two quick questions
I'm making a big 5.5 gal batch Imperial IPA (9-10% abv) and was going to use two vials of WLP001 and make starters for them.
So I should 2 liters of water and one cup DME for each?
Is it okay to use a milk jug or juice jug?

 

[TTB-J]

Any old jug will do, as long as it's clean and sanitized. If I'm not mistaken, you should have 100g of DME for each liter of water in your starter.

 

[avidhomebrewer]

For my big brews, I've already used a sanitized milk carton (after rinsing, of course) that I kept in the dark. Already stepped that up by decanting and adding a fresh DME/water (cooled) on top of the yeast.