I love these! This type is made from glucomann fiber (and only glucomann fiber) NOT tofu (the kind you find at Whole Foods and other health food stores). They come in a bunch of cute shapes. They are shelf stable but I refrigerate them.
Here's the scoop- when you open that bag- you will immediately die- they smell like fish- but when you rinse them for about 3-4 minutes all of the smell goes away. They do not taste like fish- even right out of the bag. I'm a vegetarian and don't eat fish- so I called them on the phone and talked about the smell. They are vegan. They are very chewy, so if you want a more pasta like experience, you might want to try the Dreamfields pasta ( 5 net carbs/serving). I use them in soups (smaller shapes), chili mac, casseroles etc. Anywhere that the 'pasta' is part of hte meal, not the main attraction. So Dreamfields for spaghetti adn sauce but shirataki in veggie soup, lentil soup, etc. For mac and cheese- I use 1/2 dreamfields and 1/2 shirataki.
This fiber is also called konjac- sometimes the 'pasta' is called konjac pasta. Now you can buy konjac powder (not from Miracle noodles- I'd have to hunt up the web site for you- if you're interested) and use it in place of flour to thicken your white sauces- I make my roux with butter and konjac, then add cream- you only need a little bit- and the sauce is carb-free, thick and delish!
I started with the starter sample pack that they sell- but I mostly buy the stars, the tiny rice, the elbows, and the baby rice- I think I made baked spaghetti with the long noodles and it was interesting.
If you try them. I'd be interested to know how you used them/liked them- they have a bunch of recipes on their site too.