Oyster sauce salt, should be added to the sauce, since the oysters should provide all the savoury flavour. However, this method is prohibitively expensive. Many modern oyster sauces are thickened with cornstarch, flavoured with oyster essence or extract and darkened with caramel. Vegetarian oyster sauce prepared from mushrooms, often oyster mushrooms or shiitake mushrooms, is also popular and generally lower in price. It may contain more taste enhancers if less mushroom extract is used to reduce costs. Most of the oyster sauces available on the market contain added monosodium glutamate (MSG). In recent years MSG-free varieties can also be found. The taste
Oyster (company) speculation that Oyster would be going the route of other subscription services like Netflix who create their own content. Oyster's Kevin Nguyen however was resistant to the notion: "We’ve seen other people try to do it themselves and underestimate how good publishers are at their job,” Mr. Nguyen said. “We’re interested in joining the literary conversation, not do what publishers do.” On Christmas Day 2013, "The New York Times" reported that Oyster and Scribd were among new ebook platforms which collected data on users' reading habits. Reviews of Oyster from tech outlets have been largely positive with the service garnering