🥛 Glass
Also known as: glass, milk glass, drinking glass, tumbler
A glass is a drinking vessel of glass, the everyday way to serve cold milk.
A glass is a drinking vessel, and glass is the everyday way to serve cold milk. Clear glass lets you see how much you have poured. Milk, though, reacts to light, and that matters if you leave a full glass on the table.
Cornell University kept 2% milk under 2000 lux, about what a shop's dairy case gives. In roughly two hours half of the teens and adults tasted an off-flavour. Vitamin A losses began after 2 hours in skimmed milk, 4 in reduced-fat and 16 in whole. Richer milk had more flavour trouble, but it also held on to its vitamin A for longer.
In the EU, glass that touches food falls under the general rules for such materials: Regulation (EC) No 1935/2004 and good manufacturing practice under Regulation 2023/2006.
Compare it with its neighbours. A mug and a cup have handles, and a glass does not. A wine glass serves something else. A bottle keeps milk until it is poured. So pour milk into a glass when you are about to drink it and do not leave it long in the light. That goes for every piece of milk tableware.
Facts
| Raw material | Glass 2 |
|---|---|
| Duration | Under light: off-flavour in ~2 h, vitamin A loss in 2-16 h 1 |
| Main use | Drinking cold milk 1 |
| Legal basis | Regulation (EC) No 1935/2004 on food contact materials 2 |
How it connects to milk
Links
- What is poured
- 🥛 Milk
- Associated with
- 🥛 Milk
- Part of
- 🍼 Milk containers and tableware
- Wine and milk
- 🍷 Wine glass
Frequently asked questions
Is a glass of milk the same as a milk glass or a tumbler?
In everyday use, yes: the drinking vessel of glass from which cold milk is served.
How fast does vitamin A drop in milk under light?
After 2 hours in skimmed milk, 4 in reduced-fat and 16 in whole milk.
Is it true that a glass is just a mug without a handle?
Not quite. A mug and a cup have handles and a glass does not, and a wine glass serves something else.
When should milk be poured into a glass?
Just before drinking, so it does not sit long in the light.
Are there EU rules for glass that touches food?
Yes. Glass, plastic, paper and metal must meet EU safety rules, with Regulation (EC) No 1935/2004 as the framework.
Similar
Sources
- Dairy Foods. New study validates light-blocking efforts (Cornell Milk Quality Improvement Program)
- European Commission. Food contact materials