Very often You all is far too often used to indicate general agreement. I want my tea hot hot . I am sure readers have their own favourite English Indianisms to add to this list. Milk is not portable like coffee, sugar, instant food or even water. Local milk is usually unreliable.
Powder is clumsy to mix and unpalatable.
Even after a hefty price, tetrapacks are only good for single use. Condensed milk has the same problem. Once opened, it doesn t stay fresh and is difficult to carry after opening the tin. Not being exposed to air, it won t be spoilt. We can use only as much as we need and keep the rest for later.