Microwaved plastic containers release microplastics into food

Post by reaperducer » Fri, Jun 30, 2023, 5:26 PM UTC

mcpackieh wrote: post #190

reaperducer wrote: post #56

Earlier quoted context omitted.

Dishes marketed under the Pyrex name are no longer borosilicates. They're still glass (tempered soda–lime glass), which is what the OP was talking about, so you're just being needlessly pedantic without adding anything to the discussion. Also, Pyrex is still borosilicate in Europe, since soda-lime is hard to get there.

Soda lime glass isn't hard to get, it's the "default" glass used around the world for everything from drinking glasses to window panes. If you buy a can of sauce or bottle of wine, that's almost certainly soda lime glass. In Europe, Pyrex still uses borosilicate glass because it's better and because Europeans are more discerning consumers than Americans. That's my theory anyway. American pyrex cheaped out by switchin…

Post by falsenapkin » Fri, Jun 30, 2023, 5:47 PM UTC

hinkley wrote: post #228

falsenapkin wrote: post #217

Earlier quoted context omitted.

Oh that is awful! Total tangent but I started doing group rides again recently and am surprised by how few people wear gloves. After my first fall tearing up my hands I decided I would not let that happen again. And since then, it's really nice when going down not having to plan for where/how the hands land! This past ride someone went down on some really awful shoulder debris and luckily her hands were fine but man…

If you're falling a lot you should think about some bike handling exercises. Low speed maneuvers will likely help. And when you hit rough ground, relax. Twitching the bike while in gravel will just make you go down faster. Just relax, hold on and pray for traction to improve before you reach the point of no return. I've avoided my worst accidents that way. One in particular flummoxed the guy I was riding with. He did…

Post by SAI_Peregrinus » Fri, Jun 30, 2023, 6:12 PM UTC

vel0city wrote: post #157

adrian_b wrote: post #71

Earlier quoted context omitted.

Tempered soda-lime glass is still preferable as a food-contact material to almost anything else, but it is much less pleasant to use than borosilicate glass, because it is much heavier and if you abuse it the tempered glass cracks relatively easily (e.g. if after boiling water in a tempered glass teapot you immerse it for cooling in cold water from the tap, the chances of cracking are high, while a borosilicate glass…

Most of my glass containers don't experience those kinds of thermal shocks though, at least non-baking glasses. Most of the containers I'm thinking about which these days have a "pyrex" brand are food containers and measuring cups which might get microwaved. True, if I've got a nice glass casserole dish I might want that to be able to handle the "go from the freezer to a 400F oven in an instant" but most of my glass…

Post by hinkley » Fri, Jun 30, 2023, 6:15 PM UTC

falsenapkin wrote: post #263

hinkley wrote: post #228

Earlier quoted context omitted.

If you're falling a lot you should think about some bike handling exercises. Low speed maneuvers will likely help. And when you hit rough ground, relax. Twitching the bike while in gravel will just make you go down faster. Just relax, hold on and pray for traction to improve before you reach the point of no return. I've avoided my worst accidents that way. One in particular flummoxed the guy I was riding with. He did…

I'm plenty capable I mean I've had like 4 or 5 unexpected ground falls in 20 years. Hung over rushing to class no hands trying to put a water bottle in my back pocket, someone stepped out from behind an on trail overhead bridge support column, braked hard for someone doing something unexpected and illegal while I was riding downhill on cobblestone. Shit happens, lessons to be learned in every case but protected hands…

Post by jacobwilliamroy » Fri, Jun 30, 2023, 6:36 PM UTC

adrian_b wrote: post #248

jacobwilliamroy wrote: post #140

Earlier quoted context omitted.

There are materials which are "transparent" to microwaves and don't get hot in the microwave oven but I can't remember which ones. And glass definitely isn't one of them.

Glass is mostly transparent to microwaves, which is why all microwave ovens include glass plates. The reason why glass vessels become hotter in a microwave oven is because glass has a much higher thermal conductivity than plastic, so it becomes heated from the hot food. Using two pieces of cloth (e.g. cut from a small towel) to hold the hot glass vessel is enough to take it safely out of the oven and this negligible…